This is an outdated version of the HTCondor Manual. You can find current documentation at http://htcondor.org/manual.

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Subsections

8.3 Quill

Quill is an optional component of HTCondor that maintains a mirror of HTCondor operational data in a relational database. The condor_quill daemon updates the data in the relation database, and the condor_dbmsd daemon maintains the database itself.

As of HTCondor version 7.5.5, Quill is distributed only with the source code. It is not included in the builds of HTCondor provided by UW, but it is available as a feature that can be enabled by those who compile HTCondor from the source code. Find the code within the condor_contrib directory, in the directories condor_tt and condor_dbmsd.

8.3.1 Installation and Configuration

Quill uses the PostgreSQL database management system. Quill uses the PostgreSQL server as its back end and client library, libpq to talk to the server. We strongly recommend the use of version 8.2 or later due to its integrated facilities of certain key database maintenance tasks, and stronger security features.

Obtain PostgreSQL from

http://www.postgresql.org/ftp/source/

Installation instructions are detailed in: http://www.postgresql.org/docs/8.2/static/installation.html

Configure PostgreSQL after installation:

Initialize the database with the PostgreSQL command initdb.
Configure to accept TCP/IP connections. For PostgreSQL version 8, use the listen_addresses variable in postgresql.conf file as a guide. For example, listen_addresses = '*' means listen on any IP interface.

Configure automatic vacuuming. Ensure that these variables with these defaults are commented in and/or set properly in the postgresql.conf configuration file:

# Turn on/off automatic vacuuming
autovacuum = on

# time between autovacuum runs, in secs
autovacuum_naptime = 60

# min # of tuple updates before vacuum
autovacuum_vacuum_threshold = 1000

# min # of tuple updates before analyze
autovacuum_analyze_threshold = 500

# fraction of rel size before vacuum
autovacuum_vacuum_scale_factor = 0.4 

# fraction of rel size before analyze
autovacuum_analyze_scale_factor = 0.2

# default vacuum cost delay for 
   # autovac, -1 means use 
   # vacuum_cost_delay
autovacuum_vacuum_cost_delay = -1  

# default vacuum cost limit for 
   # autovac, -1 means use
   # vacuum_cost_limit
autovacuum_vacuum_cost_limit = -1

Configure PostgreSQL to accept TCP/IP connections from specific hosts. Modify the pg_hba.conf file (which usually resides in the PostgreSQL server's data directory). Access is required by the condor_quill daemon, as well as the database users ``quillreader'' and ``quillwriter''. For example, to give database users ``quillreader'' and ``quillwriter'' password-enabled access to all databases on current machine from any machine in the 128.105.0.0/16 subnet, add the following:

host all quillreader 128.105.0.0 255.255.0.0 md5

host all quillwriter 128.105.0.0 255.255.0.0 md5

Note that in addition to the database specified by the configuration variable QUILL_DB_NAME, the condor_quill daemon also needs access to the database "template1". In order to create the database in the first place, the condor_quill daemon needs to connect to the database.
Start the PostgreSQL server service. See the installation instructions for the appropriate method to start the service at http://www.postgresql.org/docs/8.2/static/installation.html
The condor_quill and condor_dbmsd daemons and client tools connect to the database as users ``quillreader'' and ``quillwriter''. These are database users, not operating system users. The two types of users are quite different from each other. If these database users do not exist, add them using the createuser command supplied with the installation. Assign them with appropriate passwords; these passwords will be used by the Quill tools to connect to the database in a secure way. User ``quillreader'' should not be allowed to create more databases nor create more users. User ``quillwriter'' should not be allowed to create more users, however it should be allowed to create more databases. The following commands create the two users with the appropriate permissions, and be ready to enter the corresponding passwords when prompted.
```
/path/to/postgreSQL/bin/directory/createuser quillreader \
	--no-createdb --no-createrole --pwprompt

/path/to/postgreSQL/bin/directory/createuser quillwriter \
	--createdb --no-createrole --pwprompt
```
Answer ``no'' to the question about the ability for role creation.
Create a database for Quill to store data in with the createdb command. Create this database with the ``quillwriter'' user as the owner. A sample command to do this is
```
createdb -O quillwriter quill
```
quill is the database name to use with the QUILL_DB_NAME configuration variable.
The condor_quill and condor_dbmsd daemons need read and write access to the database. They connect as user ``quillwriter'', which has owner privileges to the database. Since this gives all access to the ``quillwriter'' user, its password cannot be stored in a public place (such as in a ClassAd). For this reason, the ``quillwriter'' password is stored in a file named .pgpass in the HTCondor spool directory. Appropriate protections on this file guarantee secure access to the database. This file must be created and protected by the site administrator; if this file does not exist as and where expected, the condor_quill and condor_dbmsd daemons log an error and exit. The .pgpass file contains a single line that has fields separated by colons and is properly terminated by an operating system specific newline character (Unix) or CRLF (Windows). The first field may be either the machine name and fully qualified domain, or it may be a dotted quad IP address. This is followed by four fields containing: the TCP port number, the name of the database, the "quillwriter" user name, and the password. The form used in the first field must exactly match the value set for the configuration variable QUILL_DB_IP_ADDR . HTCondor uses a string comparison between the two, and it does not resolve the host names to compare IP addresses. Example:
```
machinename.cs.wisc.edu:5432:quill:quillwriter:password
```

After the PostgreSQL database is initialized and running, the Quill schema must be loaded into it. First, load the plsql programming language into the server:

createlang plpgsql [databasename]

Then, load the Quill schema from the sql files in the sql subdirectory of the HTCondor release directory:

psql [databasename] [username] < common_createddl.sql
psql [databasename] [username] < pgsql_createddl.sql

where [username] will be quillwriter.

After PostgreSQL is configured and running, HTCondor must also be configured to use Quill, since by default Quill is configured to be off.

Add the file .pgpass to the VALID_SPOOL_FILES variable, since condor_preen must be told not to delete this file. This step may not be necessary, depending on which version of HTCondor you are upgrading from.

Set up configuration variables that are specific to the installation, and check that the HISTORY variable is set.

HISTORY                 = $(SPOOL)/history
QUILL_ENABLED           = TRUE
QUILL_USE_SQL_LOG       = FALSE
QUILL_NAME              = some-unique-quill-name.cs.wisc.edu
QUILL_DB_USER           = quillwriter
QUILL_DB_NAME           = database-for-some-unique-quill-name
QUILL_DB_IP_ADDR        = databaseIPaddress:port
# the following parameter's units is in seconds
QUILL_POLLING_PERIOD    = 10
QUILL_HISTORY_DURATION 	= 30
QUILL_MANAGE_VACUUM     = FALSE
QUILL_IS_REMOTELY_QUERYABLE = TRUE
QUILL_DB_QUERY_PASSWORD =  password-for-database-user-quillreader
QUILL_ADDRESS_FILE      = $(LOG)/.quill_address
QUILL_DB_TYPE           = PGSQL
# The Purge and Reindex intervals are in seconds
DATABASE_PURGE_INTERVAL	= 86400
DATABASE_REINDEX_INTERVAL = 86400
# The History durations are all in days 
QUILL_RESOURCE_HISTORY_DURATION  = 7
QUILL_RUN_HISTORY_DURATION = 7
QUILL_JOB_HISTORY_DURATION = 3650
#The DB Size limit is in gigabytes
QUILL_DBSIZE_LIMIT      = 20
QUILL_MAINTAIN_DB_CONN  = TRUE
SCHEDD_SQLLOG           = $(LOG)/schedd_sql.log
SCHEDD_DAEMON_AD_FILE   = $(LOG)/.schedd_classad

The default HTCondor configuration file should already contain definitions for QUILL and QUILL_LOG. When upgrading from a previous version that did not have Quill to a new one that does, define these two configuration variables.

Only one machine should run the condor_dbmsd daemon. On this machine, add it to the DAEMON_LIST configuration variable. All Quill-enabled machines should also run the condor_quill daemon. The machine running the condor_dbmsd daemon can also run a condor_quill daemon. An example DAEMON_LIST for a machine running both daemons, and acting as both a submit machine and a central manager might look like the following:

DAEMON_LIST  = MASTER, SCHEDD, COLLECTOR, NEGOTIATOR, DBMSD, QUILL

The condor_dbmsd daemon will need configuration file entries common to all daemons. If not already in the configuration file, add the following entries:

DBMSD = $(SBIN)/condor_dbmsd
DBMSD_ARGS = -f
DBMSD_LOG = $(LOG)/DbmsdLog
MAX_DBMSD_LOG = 10000000

8.3.1.1 Configuration Variables

These macros affect the Quill database management and interface to its representation of the job queue.

QUILL

The full path name to the condor_quill daemon.

QUILL_ARGS

Arguments to be passed to the condor_quill daemon upon its invocation.

QUILL_LOG

Path to the Quill daemon's log file.

QUILL_ENABLED

A boolean variable that defaults to False. When True, Quill functionality is enabled. When False, the Quill daemon writes a message to its log and exits. The condor_q and condor_history tools then do not use Quill.

QUILL_NAME

A string that uniquely identifies an instance of the condor_quill daemon, as there may be more than condor_quill daemon per pool. The string must not be the same as for any condor_schedd daemon.

See the description of MASTER_NAME in section 3.3.9 on page for defaults and composition of valid HTCondor daemon names.

QUILL_USE_SQL_LOG

In order for Quill to store historical job information or resource information, the HTCondor daemons must write information to the SQL logfile. By default, this is set to False, and the only information Quill stores in the database is the current job queue. This can be set on a per daemon basis. For example, to store information about historical jobs, but not store execute resource information, set QUILL_USE_SQL_LOG to False and set SCHEDD._QUILL_USE_SQL_LOG to True.

QUILL_DB_NAME

A string that identifies a database within a database server.

QUILL_DB_USER

A string that identifies the PostgreSQL user that Quill will connect as to the database. We recommend ``quillwriter'' for this setting. There is no default setting for QUILL_DB_USER, so it must be specified in the configuration file.

QUILL_DB_TYPE

A string that distinguishes between database system types. Defaults to the only database system currently defined, "PGSQL".

QUILL_DB_IP_ADDR

The host address of the database server. It can be either an IP address or an IP address. It must match exactly what is used in the .pgpass file. More than one Quill server can talk to the same database server. This can be accomplished by letting all the QUILL_DB_IP_ADDR values point to the same database server.

QUILL_POLLING_PERIOD

The frequency, in number of seconds, at which the Quill daemon polls the file job_queue.log for updates. New information in the log file is sent to the database. The default value is 10. Since Quill works by periodically sniffing the log file for updates and then sending those updates to the database, this variable controls the trade off between the currency of query results and Quill's load on the system, which is usually negligible.

QUILL_NOT_RESPONDING_TIMEOUT

The length of time, in seconds, before the condor_master may decide that the condor_quill daemon is hung due to a lack of communication, potentially causing the condor_master to kill and restart the condor_quill daemon. When the condor_quill daemon is processing a very long log file, it may not be able to communicate with the master. The default is 3600 seconds, or one hour. It may be advisable to increase this to several hours.

QUILL_MAINTAIN_DB_CONN

A boolean variable that defaults to True. When True, the condor_quill daemon maintains an open connection the database server, which speeds up updates to the database. As each open connection consumes resources at the database server, we recommend a setting of False for large pools.

DATABASE_PURGE_INTERVAL

The interval, in seconds, between scans of the database to identify and delete records that are beyond their history durations. The default value is 86400, or one day.

QUILL_JOB_HISTORY_DURATION

The number of days after entry into the database that a job will remain in the database. After QUILL_JOB_HISTORY_DURATION days, the job is deleted. The job history is the final ClassAd, and contains all information necessary for condor_history to succeed. The default is 3650, or about 10 years.

QUILL_RUN_HISTORY_DURATION

The number of days after entry into the database that extra information about the job will remain in the database. After QUILL_RUN_HISTORY_DURATION days, the records are deleted. This data includes matches made for the job, file transfers the job performed, and user log events. The default is 7 days, or one week.

QUILL_RESOURCE_HISTORY_DURATION

The number of days after entry into the database that a resource record will remain in the database. After QUILL_RESOURCE_HISTORY_DURATION days, the record is deleted. The resource history data includes the ClassAd of a compute slot, submitter ClassAds, and daemon ClassAds. The default is 7 days, or one week.

QUILL_DBSIZE_LIMIT

At intervals of time set by DATABASE_PURGE_INTERVAL, the condor_quill daemon estimates the size of the database. If the size of the database exceeds the limit set by this variable, the condor_quill daemon will e-mail the administrator a warning. This size is given in Gbytes, and defaults to 20.

QUILL_MANAGE_VACUUM

A boolean value that defaults to False. When True, the condor_quill daemon takes on the maintenance task of vacuuming the database. As of PostgreSQL version 8.1, the database can perform this task automatically; therefore, having the condor_quill daemon vacuum is not necessary. A value of True causes warnings to be written to the log file.

QUILL_SHOULD_REINDEX

A boolean value that defaults to True. When True, the condor_quill daemon will re-index the database tables when the history file is purged of old data. So, if Quill is configured to never delete history data, the tables are never re-indexed.

DATABASE_REINDEX_INTERVAL

Because PostgreSQL does not aggressively maintain the index structures for deleted tuples, it can lead to bloated index structures. This variable is the interval, in seconds, between re-index commands on the database. The default value is 86400, or one day. This is only used when the QUILL_DB_TYPE is set to "PGSQL".

QUILL_IS_REMOTELY_QUERYABLE

A boolean value that defaults to True. Thanks to PostgreSQL, one can now remotely query both the job queue and the history tables. This variable controls whether this remote querying feature should be enabled. Note that even if False, one can still query the job queue at the remote condor_schedd daemon.

QUILL_DB_QUERY_PASSWORD

Defines the password string needed by condor_q to gain read access for remotely querying the Quill database. In order for the query tools to connect to a database, they need to provide the password that is assigned to the database user ``quillreader''. This variable is then advertised by the condor_quill daemon to the condor_collector. This facility enables remote querying: remote condor_q query tools first ask the condor_collector for the password associated with a particular Quill database, and then query that database. Users who do not have access to the condor_collector cannot view the password, and as such cannot query the database.

QUILL_ADDRESS_FILE

When defined, it specifies the path and file name of a local file that contains the IP address and port number of the Quill daemon. By using the file, tools executed on the local machine do not need to query the central manager in order to find the condor_quill daemon.

DBMSD

The full path name to the condor_dbmsd daemon. The default location is $(SBIN)/condor_dbmsd.

DBMSD_ARGS

Arguments to be passed to the condor_dbmsd daemon upon its invocation. The default arguments are -f.

DBMSD_LOG

Path to the condor_dbmsd daemon's log file. The default log location is $(LOG)/DbmsdLog.

DBMSD_NOT_RESPONDING_TIMEOUT

The length of time, in seconds, before the condor_master may decide that the condor_dbmsd is hung due to a lack of communication, potentially causing the condor_master to kill and restart the condor_dbmsd daemon. When the condor_dbmsd is purging or re-indexing a very large database, it may not be able to communicate with the master. The default is 3600 seconds, or one hour. It may be advisable to increase this to several hours.

8.3.2 Four Usage Examples

Query a remote Quill daemon on regular.cs.wisc.edu for all the jobs in the queue
```
	condor_q -name quill@regular.cs.wisc.edu
	condor_q -name schedd@regular.cs.wisc.edu
```
There are two ways to get to a Quill daemon: directly using its name as specified in the QUILL_NAME configuration variable, or indirectly by querying the condor_schedd daemon using its name. In the latter case, condor_q will detect if that condor_schedd daemon is being serviced by a database, and if so, directly query it. In both cases, the IP address and port of the database server hosting the data of this particular remote Quill daemon can be figured out by the QUILL_DB_IP_ADDR and QUILL_DB_NAME variables specified in the QUILL_AD sent by the quill daemon to the collector and in the SCHEDD_AD sent by the condor_schedd daemon.
Query a remote Quill daemon on regular.cs.wisc.edu for all historical jobs belonging to owner einstein.
```
	condor_history -name quill@regular.cs.wisc.edu einstein
```
Query the local Quill daemon for the average time spent in the queue for all non-completed jobs.
```
	condor_q -avgqueuetime
```
The average queue time is defined as the average of (currenttime - jobsubmissiontime) over all jobs which are neither completed (JobStatus == 4) or removed (JobStatus == 3).
Query the local Quill daemon for all historical jobs completed since Apr 1, 2005 at 13h 00m.
```
	condor_history -completedsince '04/01/2005 13:00'
```
It fetches all jobs which got into the 'Completed' state on or after the specified time stamp. It use the PostgreSQL date/time syntax rules, as it encompasses most format options. See http://www.postgresql.org/docs/8.2/static/datatype-datetime.html for the various time stamp formats.

8.3.3 Quill and Security

There are several layers of security in Quill, some provided by HTCondor and others provided by the database. First, all accesses to the database are password-protected.

The query tools, condor_q and condor_history connect to the database as user ``quillreader''. The password for this user can vary from one database to another and as such, each Quill daemon advertises this password to the collector. The query tools then obtain this password from the collector and connect successfully to the database. Access to the database by the ``quillreader'' user is read-only, as this is sufficient for the query tools. The condor_quill daemon ensures this protected access using the sql GRANT command when it first creates the tables in the database. Note that access to the ``quillreader'' password itself can be blocked by blocking access to the collector, a feature already supported in HTCondor.
The condor_quill and condor_dbmsd daemons, on the other hand, need read and write access to the database. As such, they connect as user ``quillwriter'', who has owner privileges to the database. Since this gives all access to the ``quillwriter'' user, this password cannot be stored in a public place (such as the collector). For this reason, the ``quillwriter'' password is stored in a file called .pgpass in the HTCondor spool directory. Appropriate protections on this file guarantee secure access to the database. This file must be created and protected by the site administrator; if this file does not exist as and where expected, the condor_quill daemon logs an error and exits.
The IsRemotelyQueryable attribute in the Quill ClassAd advertised by the Quill daemon to the collector can be used by site administrators to disallow the database from being read by all remote HTCondor query tools.

8.3.4 Quill and Its RDBMS Schema

Notes:

The type ``timestamp(precision) with timezone'' is abbreviated ``ts(precision) w tz.''
The column O. Type is an abbreviation for Oracle Type.
The column P. Type is an abbreviation for PostgreSQL Type.

Although the current version of HTCondor does not support Oracle, we anticipate supporting it in the future, so Oracle support in this schema document is for future reference.

8.3.4.1 Administrative Tables

Attributes of currencies Table
Name	O. Type	P. Type	Description
datasource	varchar(4000)	varchar(4000)	Identifier of the data source.
lastupdate	ts(3) w tz	ts(3) w tz	Time of the last update sent to the database from the data source.

Attributes of error_sqllogs Table
Name	O. Type	P. Type	Description
logname	varchar(100)	varchar(100)	Name of the SQL log file causing a SQL error.
host	varchar(50)	varchar(50)	The host where the SQL log resides.
lastmodified	ts(3) w tz	ts(3) w tz	The last modified time of the SQL log.
errorsql	varchar(4000)	text	The SQL statement causing an error.
logbody	clob	text	The body of the SQL log.
errormessage	varchar(4000)	varchar(4000)	The description of the error.
INDEX: Index named error_sqllog_idx on (logname, host, lastmodified)

Attributes of maintenance_log Table
Name	O. Type	P. Type	Description
eventts	ts(3) w tz	ts(3) w tz	Time the event occurred.
eventmsg	varchar(4000)	varchar(4000)	Message describing the event.

Attributes of quilldbmonitor Table
Name	O. Type	P. Type	Description
dbsize	integer	integer	Size of the database in megabytes.

Attributes of quill_schema_version Table
Name	O. Type	P. Type	Description
major	int	int	Major version number.
minor	int	int	Minor version number.
back_to_major	int	int	The major number of the old version this version is compatible to.
back_to_minor	int	int	The minor number of the old version this version is compatible to.

Attributes of throwns Table
Name	O. Type	P. Type	Description
filename	varchar(4000)	varchar(4000)	The name of the log that was truncated.
machine_id	varchar(4000)	varchar(4000)	The machine where the truncated log resides.
log_size	numeric(38)	numeric(38)	The size of the truncated log.
throwtime	ts(3) w tz	ts(3) w tz	The time when the truncation occurred.

8.3.4.2 Daemon Tables

Attributes of daemons_horizontal Table
Name	O. Type	P. Type	Description
mytype	varchar(100)	varchar(100)	The type of daemon ClassAd, e.g. ``Master''
name	varchar(500)	varchar(500)	The name identifier of the daemon ClassAd.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the daemon last reported to Quill.
monitorselftime	ts(3) w tz	ts(3) w tz	The time when the daemon last collected information about itself.
monitorselfcpuusage	numeric(38)	numeric(38)	The amount of CPU this daemon has used.
monitorselfimagesize	numeric(38)	numeric(38)	The amount of virtual memory this daemon has used.
monitorselfresidentsetsize	numeric(38)	numeric(38)	The amount of physical memory this daemon has used.
monitorselfage	integer	integer	How long the daemon has been running.
updatesequencenumber	integer	integer	The sequence number associated with the update.
updatestotal	integer	integer	The number of updates received from the daemon.
updatessequenced	integer	integer	The number of updates that were in order.
updateslost	integer	integer	The number of updates that were lost.
updateshistory	varchar(4000)	varchar(4000)	Bitmask of the last 32 updates.
lastreportedtime_epoch	integer	integer	The equivalent epoch time of last heard from.
PRIMARY KEY: (mytype, name)
NOT NULL: mytype and name cannot be null

Attributes of daemons_horizontal_history Table
Name	O. Type	P. Type	Description
mytype	varchar(100)	varchar(100)	The type of daemon ClassAd, e.g. ``Master''
name	varchar(500)	varchar(500)	The name identifier of the daemon ClassAd.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the daemon last reported to Quill.
monitorselftime	ts(3) w tz	ts(3) w tz	The time when the daemon last collected information about itself.
monitorselfcpuusage	numeric(38)	numeric(38)	The amount of CPU this daemon has used.
monitorselfimagesize	numeric(38)	numeric(38)	The amount of virtual memory this daemon has used.
monitorselfresidentsetsize	numeric(38)	numeric(38)	The amount of physical memory this daemon has used.
monitorselfage	integer	integer	How long the daemon has been running.
updatesequencenumber	integer	integer	The sequence number associated with the update.
updatestotal	integer	integer	The number of updates received from the daemon.
updatessequenced	integer	integer	The number of updates that were in order.
updateslost	integer	integer	The number of updates that were lost.
updateshistory	varchar(4000)	varchar(4000)	Bitmask of the last 32 updates.
endtime	ts(3) w tz	ts(3) w tz	End of when the ClassAd is valid.

Attributes of daemons_vertical Table
Name	O. Type	P. Type	Description
mytype	varchar(100)	varchar(100)	The type of daemon ClassAd, e.g. ``Master''
name	varchar(500)	varchar(500)	The name identifier of the daemon ClassAd.
attr	varchar(4000)	varchar(4000)	Attribute name.
val	clob	text	Attribute value.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the daemon last reported to Quill.
PRIMARY KEY: (mytype, name, attr)
NOT NULL: mytype, name, and attr cannot be null

Attributes of daemons_vertical_history Table
Name	O. Type	P. Type	Description
mytype	varchar(100)	varchar(100)	The type of daemon ClassAd, e.g. ``Master''
name	varchar(500)	varchar(500)	The name identifier of the daemon ClassAd.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the daemon last reported to Quill.
attr	varchar(4000)	varchar(4000)	Attribute name.
val	clob	text	Attribute value.
endtime	ts(3) w tz	ts(3) w tz	End of when the ClassAd is valid.

Attributes of submitters_horizontal table
Name	O. Type	P. Type	Description
name	varchar(500)	varchar(500)	Name of the submitter ClassAd.
scheddname	varchar(4000)	varchar(4000)	Name of the schedd where the submitter ad is from.
lastreportedtime	ts(3) w tz	ts(3) w tz	Last time a submitter ClassAd was sent to Quill.
idlejobs	integer	integer	Number of idle jobs of the submitter.
runningjobs	integer	integer	Number of running jobs of the submitter.
heldjobs	integer	integer	Number of held jobs of the submitter.
flockedjobs	integer	integer	Number of flocked jobs of the submitter.

Attributes of submitters_horizontal_history table
Name	O. Type	P. Type	Description
name	varchar(500)	varchar(500)	Name of the submitter ClassAd.
scheddname	varchar(4000)	varchar(4000)	Name of the schedd where the submitter ad is from.
lastreportedtime	ts(3) w tz	ts(3) w tz	Last time a submitter ClassAd was sent to Quill.
idlejobs	integer	integer	Number of idle jobs of the submitter.
runningjobs	integer	integer	Number of running jobs of the submitter.
heldjobs	integer	integer	Number of held jobs of the submitter.
flockedjobs	integer	integer	Number of flocked jobs of the submitter.
endtime	ts(3) w tz	ts(3) w tz	End of when the ClassAd is valid.

8.3.4.3 Files Tables

Attributes of files Table
Name	O. Type	P. Type	Description
file_id	int	int	Unique numeric identifier of the file.
name	varchar(4000)	varchar(4000)	File name.
host	varchar(4000)	varchar(4000)	Name of machine where the file is located.
path	varchar(4000)	varchar(4000)	Directory path to the file.
acl_id	integer	integer	Not yet used, null.
lastmodified	ts(3) w tz	ts(3) w tz	Timestamp of the file.
filesize	numeric(38)	numeric(38)	Size of the file in bytes.
checksum	varchar(32)	varchar(32)	MD5 checksum of the file.
PRIMARY KEY: file_id
NOT NULL: file_id cannot be null

Attributes of fileusages Table
Name	O. Type	P. Type	Description
globaljobid	varchar(4000)	varchar(4000)	Global identifier of the job that used the file.
file_id	int	int	Numeric identifier of the file.
usagetype	varchar(4000)	varchar(4000)	Type of use of the file by the job, e.g., input, output, command.
REFERENCE: file_id references files(file_id)

Attributes of transfers Table
Name	O. Type	P. Type	Description
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
src_name	varchar(4000)	varchar(4000)	Name of the file on the source machine.
src_host	varchar(4000)	varchar(4000)	Name of the source machine.
src_port	integer	integer	Source port number used for the transfer.
src_path	varchar(4000)	varchar(4000)	Path to the file on the source machine.
src_daemon	varchar(30)	varchar(30)	HTCondor daemon performing the transfer on the source machine.
src_protocol	varchar(30)	varchar(30)	The protocol used on the source machine.
src_credential_id	integer	integer	Not yet used, null.
src_acl_id	integer	integer	Not yet used, null.
dst_name	varchar(4000)	varchar(4000)	Name of the file on the destination machine.
dst_host	varchar(4000)	varchar(4000)	Name of the destination machine.
dst_port	integer	integer	Destination port number used for the transfer.
dst_path	varchar(4000)	varchar(4000)	Path to the file on the destination machine.
dst_daemon	varchar(30)	varchar(30)	HTCondor daemon receiving the transfer on the destination machine.
dst_protocol	varchar(30)	varchar(30)	The protocol used on the destination machine.
dst_credential_id	integer	integer	Not yet used, null.
dst_acl_id	integer	integer	Not yet used, null.
transfer_intermediary_id	integer	integer	Not yet used, null; will use someday if a proxy is used.
transfer_size_bytes	numeric(38)	numeric (38)	Size of the data transfered in bytes.
elapsed	numeric(38)	numeric(38)	Number of seconds that elapsed during the transfer.
checksum	varchar(256)	varchar(256)	Checksum of the file.
transfer_time	ts(3) w tz	ts(3) w tz	Time when the transfer took place.
last_modified	ts(3) w tz	ts(3) w tz	Last modified time for the file that was transfered.
is_encrypted	varchar(5)	varchar(5)	(boolean) True if the file is encrypted.
delegation_method_id	integer	integer	Not yet used, null.
completion_code	integer	integer	Indicates whether the transfer failed or succeeded.

8.3.4.4 Interface Tables

Attributes of cdb_users Table
Name	O. Type	P. Type	Description
userid	varchar(30)	varchar(30)	Unique identifier of the user
password	character(32)	character(32)	Encrypted password
admin	varchar(5)	varchar(5)	(boolean) True if the user has administrator privileges

Attributes of l_eventtype Table
Name	O. Type	P. Type	Description
eventtype	integer	integer	Numeric type code of the event.
description	varchar(4000)	varchar(4000)	Description of the type of event associated with the eventtype code.

Attributes of l_jobstatus Table
Name	O. Type	P. Type	Description
jobstatus	integer	integer	Numeric code for job status.
abbrev	char(1)	char(1)	Single letter code for job status.
description	varchar(4000)	varchar(4000)	Description of job status.
PRIMARY KEY: jobstatus
NOT NULL: jobstatus cannot be null

8.3.4.5 Jobs Tables

Attributes of clusterads_horizontal Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd the job is submitted to.
cluster_id	integer	integer	Cluster identifier for the job.
owner	varchar(30)	varchar(30)	User who submitted the job.
jobstatus	integer	integer	Current status of the job.
jobprio	integer	integer	Priority for this job.
imagesize	numeric(38)	numeric(38)	Estimate of memory image size of the job in kilobytes.
qdate	ts(3) w tz	ts(3) w tz	Time the job was submitted to the job queue.
remoteusercpu	numeric(38)	numeric(38)	Total number of seconds of user CPU time the job used on remote machines.
remotewallclocktime	numeric(38)	numeric(38)	Committed cumulative number of seconds the job has been allocated to a machine.
cmd	clob	text	Path to and filename of the job to be executed.
args	clob	text	Arguments passed to the job.
jobuniverse	integer	integer	The HTCondor universe used by the job.
PRIMARY KEY: (scheddname, cluster_id)
NOT NULL: scheddname and cluster_id cannot be null

Attributes of clusterads_vertical Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that the job is submitted to.
cluster_id	integer	integer	Cluster identifier for the job.
attr	varchar(2000)	varchar(2000)	Attribute name.
val	clob	text	Attribute value.
PRIMARY KEY: (scheddname, cluster_id, attr)

Attributes of jobs_horizontal_history Table - Part 1 of 3
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
scheddbirthdate	integer	integer	The birth date of the schedd where the job is submitted.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
qdate	ts(3) w tz	ts(3) w tz	Time the job was submitted to the job queue.
owner	varchar(30)	varchar(30)	User who submitted the job.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
numckpts	integer	integer	Number of checkpoints written by the job during its lifetime.
numrestarts	integer	integer	Number of restarts from a checkpoint attempted by the job in its lifetime.
numsystemholds	integer	integer	Number of times HTCondor-G placed the job on hold.
condorversion	varchar(4000)	varchar(4000)	Version of HTCondor that ran the job.
condorplatform	varchar(4000)	varchar(4000)	Platform of the computer where the schedd runs.
rootdir	varchar(4000)	varchar(4000)	Root directory on the system where the job is submitted from.
iwd	varchar(4000)	varchar(4000)	Initial working directory of the job.
jobuniverse	integer	integer	The HTCondor universe used by the job.
cmd	clob	text	Path to and filename of the job to be executed.
minhosts	integer	integer	Minimum number of hosts that must be in the claimed state for this job, before the job may enter the running state.
maxhosts	integer	integer	Maximum number of hosts this job would like to claim.
jobprio	integer	integer	Priority for this job.
negotiation_user_name	varchar(4000)	varchar(4000)	User name in which the job is negotiated.
env	clob	text	Environment under which the job ran.
userlog	varchar(4000)	varchar(4000)	User log where the job events are written to.
coresize	numeric(38)	numeric(38)	Maximum allowed size of the core file.
Table Continues on Next Page

Attributes of jobs_horizontal_history Table - Part 2 of 3
Name	O. Type	P. Type	Description
killsig	varchar(4000)	varchar(4000)	Signal to be sent if the job is put on hold.
stdin	varchar(4000)	varchar(4000)	The file used as stdin.
transferin	varchar(5)	varchar(5)	(boolean) For globus universe jobs. True if input should be transferred to the remote machine.
stdout	varchar(4000)	varchar(4000)	The file used as stdout.
transferout	varchar(5)	varchar(5)	(boolean) For globus universe jobs. True if output should be transferred back to the submit machine.
stderr	varchar(4000)	varchar(4000)	The file used as stderr.
transfererr	varchar(5)	varchar(5)	(boolean) For globus universe jobs. True if error output should be transferred back to the submit machine.
shouldtransferfiles	varchar (4000)	varchar(4000)	Whether HTCondor should transfer files to and from the machine where the job runs.
transferfiles	varchar(4000)	varchar(4000)	Depreciated. Similar to shouldtransferfiles.
executablesize	numeric(38)	numeric(38)	Size of the executable in kilobytes.
diskusage	integer	integer	Size of the executable and input files to be transferred.
filesystemdomain	varchar(4000)	varchar(4000)	Name of the networked file system used by the job.
args	clob	text	Arguments passed to the job.
lastmatchtime	ts(3) w tz	ts(3) w tz	Time when the job was last successfully matched with a resource.
numjobmatches	integer	integer	Number of times the negotiator matches the job with a resource.
jobstartdate	ts(3) w tz	ts(3) w tz	Time when the job first began running.
jobcurrentstartdate	ts(3) w tz	ts(3) w tz	Time when the job's current run started.
jobruncount	integer	integer	Number of times a shadow has been started for the job.
filereadcount	numeric(38)	numeric(38)	Number of read(2) calls the job made (only standard universe).
filereadbytes	numeric(38)	numeric(38)	Number of bytes read by the job (only standard universe).
filewritecount	numeric(38)	numeric(38)	Number of write calls the job made (only standard universe).
filewritebytes	numeric(38)	numeric(38)	Number of bytes written by the job (only standard universe).
Table Continues on Next Page

Attributes of jobs_horizontal_history Table - Part 3 of 3
Name	O. Type	P. Type	Description
fileseekcount	numeric(38)	numeric(38)	Number of seek calls that this job made (only standard universe).
totalsuspensions	integer	integer	Number of times the job has been suspended during its lifetime
imagesize	numeric(38)	numeric(38)	Estimate of memory image size of the job in kilobytes.
exitstatus	integer	integer	No longer used by HTCondor.
localusercpu	numeric(38)	numeric(38)	Number of seconds of user CPU time the job used on the submit machine.
localsyscpu	numeric(38)	numeric(38)	Number of seconds of system CPU time the job used on the submit machine.
remoteusercpu	numeric(38)	numeric(38)	Number of seconds of user CPU time the job used on remote machines.
remotesyscpu	numeric(38)	numeric(38)	Number of seconds of system CPU time the job used on remote machines.
bytessent	numeric(38)	numeric(38)	Number of bytes sent to the job.
bytesrecvd	numeric(38)	numeric(38)	Number of bytes received by the job.
rscbytessent	numeric(38)	numeric(38)	Number of remote system call bytes sent to the job.
rscbytesrecvd	numeric(38)	numeric(38)	Number of remote system call bytes received by the job.
exitcode	integer	integer	Exit return code of the user job. Used when a job exits by means other than a signal.
jobstatus	integer	integer	Current status of the job.
enteredcurrentstatus	ts(3) w tz	ts(3) w tz	Time the job entered into its current status.
remotewallclocktime	numeric(38)	numeric(38)	Cumulative number of seconds the job has been allocated to a machine.
lastremotehost	varchar(4000)	varchar(4000)	The remote host for the last run of the job.
completiondate	ts(3) w tz	ts(3) w tz	Time when the job completed; 0 if job has not yet completed.
enteredhistorytable	ts(3) w tz	ts(3) w tz	Time when the job entered the history table.
PRIMARY KEY: (scheddname, scheddbirthdate, cluster_id, proc_id)
NOT NULL: scheddname, scheddbirthdate, cluster_id, and proc_id cannot be null
INDEX: Index named hist_h_i_owner on owner

Attributes of jobs_vertical_history Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
scheddbirthdate	integer	integer	The birth date of the schedd where the job is submitted.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
attr	varchar(2000)	varchar(2000)	Attribute name.
val	clob	text	Attribute value.
PRIMARY KEY: (scheddname, scheddbirthdate, cluster_id, proc_id, attr)
NOT NULL: scheddname, scheddbirthdate, cluster_id, proc_id, and attr cannot be null

Attributes of procads_horizontal Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
jobstatus	integer	integer	Current status of the job.
imagesize	numeric(38)	numeric(38)	Estimate of memory image size of the job in kilobytes.
remoteusercpu	numeric(38)	numeric(38)	Total number of seconds of user CPU time the job used on remote machines.
remotewallclocktime	numeric(38)	numeric(38)	Cumulative number of seconds the job has been allocated to a machine.
remotehost	varchar(4000)	varchar(4000)	Name of the machine running the job.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
jobprio	integer	integer	Priority of the job.
args	clob	text	Arguments passed to the job.
shadowbday	ts(3) w tz	ts(3) w tz	The time when the shadow was started.
enteredcurrentstatus	ts(3) w tz	ts(3) w tz	Time the job entered its current status.
numrestarts	integer	integer	Number of times the job has restarted.
PRIMARY KEY: (scheddname, cluster_id, proc_id)
NOT NULL: scheddname, cluster_id, and proc_id cannot be null

Attributes of procads_vertical Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
attr	varchar(2000)	varchar(2000)	Attribute name.
val	clob	text	Attribute value.

8.3.4.6 Machines Tables

Attributes of machines_horizontal Table - Part 1 of 2
Name	O. Type	P. Type	Description
machine_id	varchar(4000)	varchar(4000)	Unique identifier of the machine.
opsys	varchar(4000)	varchar(4000)	Operating system running on the machine.
arch	varchar(4000)	varchar(4000)	Architecture of the machine.
state	varchar(4000)	varchar(4000)	HTCondor state of the machine.
activity	varchar(4000)	varchar(4000)	HTCondor job activity on the machine.
keyboardidle	integer	integer	Number of seconds since activity has been detected on any keyboard or mouse associated with the machine.
consoleidle	integer	integer	Number of seconds since activity has been detected on the console keyboard or mouse.
loadavg	real	real	Current load average of the machine.
condorloadavg	real	real	Portion of load average generated by HTCondor
totalloadavg	real	real
virtualmemory	integer	integer	Amount of currently available virtual memory in kilobytes.
memory	integer	integer	Amount of RAM in megabytes.
totalvirtualmemory	integer	integer
cpubusytime	integer	integer	Time in seconds since cpuisbusy became true.
cpuisbusy	varchar(5)	varchar(5)	(boolean) True when the CPU is busy.
currentrank	real	real	The machine owner's affinity for running the HTCondor job which it is currently hosting.
clockmin	integer	integer	Number of minutes passed since midnight.
clockday	integer	integer	The day of the week.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the HTCondor central manager last received a status update from this machine.
enteredcurrentactivity	ts(3) w tz	ts(3) w tz	Time when the machine entered the current activity.
enteredcurrentstate	ts(3) w tz	ts(3) w tz	Time when the machine entered the current state.
updatesequencenumber	integer	integer	Each update includes a sequence number.
Table Continues on Next Page

Attributes of machines_horizontal Table - Part 2 of 2
updatestotal	integer	integer	The number of updates received from the daemon.
updatessequenced	integer	integer	The number of updates that were in order.
updateslost	integer	integer	The number of updates that were lost.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
lastreportedtime_epoch	integer	integer	The equivalent epoch time of lastreportedtime.
PRIMARY KEY: machine_id

Attributes of machines_horizontal_history Table - Part 1 of 2
Name	O. Type	P. Type	Description
machine_id	varchar(4000)	varchar(4000)	Unique identifier of the machine.
opsys	varchar(4000)	varchar(4000)	Operating system running on the machine.
arch	varchar(4000)	varchar(4000)	Architecture of the machine.
state	varchar(4000)	varchar(4000)	HTCondor state of the machine.
activity	varchar(4000)	varchar(4000)	HTCondor job activity on the machine.
keyboardidle	integer	integer	Number of seconds since activity has been detected on any keyboard or mouse associated with the machine.
consoleidle	integer	integer	Number of seconds since activity has been detected on the console keyboard or mouse.
loadavg	real	real	Current load average of the machine.
condorloadavg	real	real	Portion of load average generated by HTCondor
totalloadavg	real	real
virtualmemory	integer	integer	Amount of currently available virtual memory in kilobytes.
memory	integer	integer	Amount of RAM in megabytes.
totalvirtualmemory	integer	integer
cpubusytime	integer	integer	Time in seconds since cpuisbusy became true.
cpuisbusy	varchar(5)	varchar(5)	(boolean) True when the CPU is busy.
currentrank	real	real	The machine owner's affinity for running the HTCondor job which it is currently hosting.
clockmin	integer	integer	Number of minutes passed since midnight.
clockday	integer	integer	The day of the week.
lastreportedtime	ts(3) w tz	ts(3) w tz	Time when the HTCondor central manager last received a status update from this machine.
enteredcurrentactivity	ts(3) w tz	ts(3) w tz	Time when the machine entered the current activity.
enteredcurrentstate	ts(3) w tz	ts(3) w tz	Time when the machine entered the current state.
updatesequencenumber	integer	integer	Each update includes a sequence number.
Table Continues on Next Page

Attributes of machines_horizontal_history Table - Part 2 of 2
Name	O. Type	P. Type	Description
updatestotal	integer	integer	The number of updates received from the daemon.
updatessequenced	integer	integer	The number of updates that were in order.
updateslost	integer	integer	The number of updates that were lost.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
end_time	ts(3) w tz	ts(3) w tz	The end of when the ClassAd is valid.

Attributes of machines_vertical Table
Name	O. Type	P. Type	Description
machine_id	varchar(4000)	varchar(4000)	Unique identifier of the machine.
attr	varchar(2000)	varchar(2000)	Attribute name.
val	clob	text	Attribute value.
start_time	ts(3) w tz	ts(3) w tz	Time when this attribute-value pair became valid.
PRIMARY KEY: (machine_id, attr)
NOT NULL: machine_id and attr cannot be null

Attributes of machines_vertical_history Table
Name	O. Type	P. Type	Description
machine_id	varchar(4000)	varchar(4000)	Unique identifier of the machine.
attr	varchar(4000)	varchar(4000)	Attribute name.
val	clob	text	Attribute value.
start_time	ts(3) w tz	ts(3) w tz	Time when this attribute-value pair became valid.
end_time	ts(3) w tz	ts(3) w tz	Time when this attribute-value pair became invalid.

8.3.4.7 Matchmaking Tables

Attributes of matches Table
Name	O. Type	P. Type	Description
match_time	ts(3) w tz	ts(3) w tz	Time the match was made.
username	varchar(4000)	varchar(4000)	User who submitted the job.
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that the job is submitted to.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.
machine_id	varchar(4000)	varchar(4000)	Identifier of the machine the job matched with.
remote_user	varchar(4000)	varchar(4000)	User that was preempted.
remote_priority	real	real	The preempted user's priority.

Attributes of rejects Table
Name	O. Type	P. Type	Description
reject_time	ts(3) w tz	ts(3) w tz	Time when the job was rejected.
username	varchar(4000)	varchar(4000)	User who submitted the job.
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.

8.3.4.8 Runtime Tables

Attributes of events Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
globaljobid	varchar(4000)	varchar(4000)	Global identifier of the job that generated the event.
run_id	numeric(12,0)	numeric(12,0)	Identifier of the run that the event is associated with.
eventtype	integer	integer	Numeric type code of the event.
eventtime	ts(3) w tz	ts(3) w tz	Time the event occurred.
description	varchar(4000)	varchar(4000)	Description of the event.

Attributes of generic_messages Table
Name	O. Type	P. Type	Description
eventtype	varchar(4000)	varchar(4000)	The type of event.
eventkey	varchar(4000)	varchar(4000)	The key of the event.
eventtime	ts(3) w tz	ts(3) w tz	The time of the event.
eventloc	varchar(4000)	varchar(4000)	The location of the event.
attname	varchar(4000)	varchar(4000)	The attribute name.
attval	clob	text	The attribute value.
attrtype	varchar(4000)	varchar(4000)	The attribute type.

Attributes of runs Table
Name	O. Type	P. Type	Description
run_id	numeric(12)	numeric(12)	Unique identifier of the run.
machine_id	varchar(4000)	varchar(4000)	Identifier of the machine where the job ran.
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
spid	integer	integer	Subprocess identifier for the job.
globaljobid	varchar(4000)	varchar(4000)	Identifier of the job that was run.
startts	ts(3) w tz	ts(3) w tz	Time when the job started.
endts	ts(3) w tz	ts(3) w tz	Time when the job ended.
endtype	smallint	smallint	The type of ending event.
endmessage	varchar(4000)	varchar(4000)	The ending message.
wascheckpointed	varchar(7)	varchar(7)	Whether the run was checkpointed.
imagesize	numeric(38)	numeric(38)	The image size of the executable.
runlocalusageuser	integer	integer	The time the job spent in usermode on execute machines (only standard universe).
runlocalusagesystem	integer	integer	The time the job was in system calls.
runremoteusageuser	integer	integer	The time the shadow spent working for the job.
runremoteusagesystem	integer	integer	The time the shadow spent in system calls for the job.
runbytessent	numeric(38)	numeric(38)	Number of bytes sent to the run.
runbytesreceived	numeric(38)	numeric(38)	Number of bytes received from the run.
PRIMARY KEY: run_id
NOT NULL: run_id cannot be null

8.3.4.9 System Tables

Attributes of dummy_single_row_table Table
Name	O. Type	P. Type	Description
a	varchar(1)	varchar(1)	A dummy column.

Attributes of history_jobs_to_purge Table
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
cluster_id	integer	integer	Cluster identifier for the job.
proc_id	integer	integer	Process identifier for the job.
globaljobid	varchar(4000)	varchar(4000)	Unique global identifier for the job.

Attributes of jobqueuepollinginfo Table
Name	O. Type	P. Type	Description
scheddname	varchar(4000)	varchar(4000)	Name of the schedd that submitted the job.
last_file_mtime	integer	integer	The last modification time of the file.
last_file_size	numeric(38)	numeric(38)	The last size of the file in bytes.
last_next_cmd_offset	integer	integer	The last offset for the next command.
last_cmd_offset	integer	integer	The last offset of the current command.
last_cmd_type	smallint	smallint	The last type of command.
last_cmd_key	varchar(4000)	varchar(4000)	The last key of the command.
last_cmd_mytype	varchar(4000)	varchar(4000)	The last my ClassAd type of the command.
last_cmd_targettype	varchar(4000)	varchar(4000)	The last target ClassAd type.
last_cmd_name	varchar(4000)	varchar(4000)	The attribute name of the command.
last_cmd_value	varchar(4000)	varchar(4000)	The attribute value of the command.

Next: 8.4 The HTCondorView Client Up: 8. Contrib and Source Previous: 8.2 Using HTCondor with Contents Index

htcondor-admin@cs.wisc.edu

host	all	quillreader	128.105.0.0	255.255.0.0	md5
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