Ubuntu Manpage: slurmdbd.conf - Slurm Database Daemon (SlurmDBD) configuration file

Provided by: slurmdbd_15.08.7-1build1_amd64

NAME

       slurmdbd.conf - Slurm Database Daemon (SlurmDBD) configuration file

DESCRIPTION

slurmdb.conf is an ASCII file which describes Slurm Database Daemon (SlurmDBD) configuration information.
The file location can be modified at system build time using the DEFAULT_SLURM_CONF parameter or at
execution time by setting the SLURM_CONF environment variable.

The contents of the file are case insensitive except for the names of nodes and files. Any text following
a "#" in the configuration file is treated as a comment through the end of that line. Changes to the
configuration file take effect upon restart of SlurmDbd or daemon receipt of the SIGHUP signal unless
otherwise noted.

This file should be only on the computer where SlurmDBD executes and should only be readable by the user
which executes SlurmDBD (e.g. "slurm"). If the slurmdbd daemon is started as user root and changes to
another user ID, the configuration file will initially be read as user root, but will be read as the
other user ID in response to a SIGHUP signal. This file should be protected from unauthorized access
since it contains a database password. The overall configuration parameters available include:

ArchiveDir
If ArchiveScript is not set the slurmdbd will generate a file that can be read in anytime with
sacctmgr load filename. This directory is where the file will be placed after a purge event has
happened and archive for that element is set to true. Default is /tmp. The format for this files
name is $ArchiveDir/$ClusterName_$ArchiveObject_archive_$BeginTimeStamp_$endTimeStamp

ArchiveEvents
When purging events also archive them. Boolean, yes to archive event data, no otherwise. Default
is no.

ArchiveJobs
When purging jobs also archive them. Boolean, yes to archive job data, no otherwise. Default is
no.

ArchiveResvs
When purging reservations also archive them. Boolean, yes to archive reservation data, no
otherwise. Default is no.

ArchiveScript
This script can be executed every time a rollup happens (every hour, day and month), depending on
the Purge*After options. This script is used to transfer accounting records out of the database
into an archive. It is used in place of the internal process used to archive objects. The script
is executed with a no arguments, The following environment variables are set.

SLURM_ARCHIVE_EVENTS
1 for archive events 0 otherwise.

SLURM_ARCHIVE_LAST_EVENT
Time of last event start to archive.

SLURM_ARCHIVE_JOBS
1 for archive jobs 0 otherwise.

SLURM_ARCHIVE_LAST_JOB
Time of last job submit to archive.

SLURM_ARCHIVE_STEPS
1 for archive steps 0 otherwise.

SLURM_ARCHIVE_LAST_STEP
Time of last step start to archive.

SLURM_ARCHIVE_SUSPEND
1 for archive suspend data 0 otherwise.

SLURM_ARCHIVE_LAST_SUSPEND
Time of last suspend start to archive.

ArchiveSteps
When purging steps also archive them. Boolean, yes to archive step data, no otherwise. Default
is no.

ArchiveSuspend
When purging suspend data also archive it. Boolean, yes to archive suspend data, no otherwise.
Default is no.

AuthInfo
Additional information to be used for authentication of communications with the Slurm control
daemon (slurmctld) on each cluster. The interpretation of this option is specific to the
configured AuthType. In the case of auth/munge, this can be configured to use a Munge daemon
specifically configured to provide authentication between clusters while the default Munge daemon
provides authentication within a cluster. In that case, this will specify the pathname of the
socket to use. Per default this value is left unspecified, which results in the default
authentication mechanism being used.

AuthType
Define the authentication method for communications between Slurm components. Acceptable values
at present include "auth/none", "auth/authd", and "auth/munge". The default value is "auth/none",
which means the UID included in communication messages is not verified. This may be fine for
testing purposes, but do not use "auth/none" if you desire any security. "auth/authd" indicates
that Brett Chun's authd is to be used (see "http://www.theether.org/authd/" for more information).
"auth/munge" indicates that LLNL's Munge system is to be used (this is the best supported
authentication mechanism for Slurm, see "https://code.google.com/p/munge/" for more information).
SlurmDBD must be terminated prior to changing the value of AuthType and later restarted.

CommitDelay
How many seconds between commits on a connection from a Slurmctld. This speeds up inserts into
the database dramatically. If you are running a very high throughput of jobs you should consider
setting this. In testing, 1 second improves the slurmdbd performance dramatically and reduces
overhead. There is a small probability of data loss though since this creates a window in which
if the slurmdbd seg faults or exits abnormally for any reason the data not committed could be
lost. While this situation should be very rare, it does present an extremely small risk, but may
be the only way to run in extremely heavy environments. In all honesty, the risk is quite low,
but still present.

DbdBackupHost
The name of the machine where the backup Slurm Database Daemon is executed. This host must have
access to the same underlying database specified by the 'Storage' options mentioned below. This
should be a node name without the full domain name. I.e., the hostname returned by the
gethostname() function cut at the first dot (e.g. use "tux001" rather than "tux001.my.com").

DbdAddr
Name that DbdHost should be referred to in establishing a communications path. This name will be
used as an argument to the gethostbyname() function for identification. For example, "elx0000"
might be used to designate the Ethernet address for node "lx0000". By default the DbdAddr will be
identical in value to DbdHost.

DbdHost
The name of the machine where the Slurm Database Daemon is executed. This should be a node name
without the full domain name. I.e., the hostname returned by the gethostname() function cut at
the first dot (e.g. use "tux001" rather than "tux001.my.com"). This value must be specified.

DbdPort
The port number that the Slurm Database Daemon (slurmdbd) listens to for work. The default value
is SLURMDBD_PORT as established at system build time. If none is explicitly specified, it will be
set to 6819. This value must be equal to the AccountingStoragePort parameter in the slurm.conf
file.

DebugFlags
Defines specific subsystems which should provide more detailed event logging. Multiple subsystems
can be specified with comma separators. Most DebugFlags will result in verbose logging for the
identified subsystems and could impact performance. Valid subsystems available today (with more
to come) include:

DB_ARCHIVE SQL statements/queries when dealing with archiving and purging the database.

DB_ASSOC SQL statements/queries when dealing with associations in the database.

DB_EVENT SQL statements/queries when dealing with (node) events in the database.

DB_JOB SQL statements/queries when dealing with jobs in the database.

DB_QOS SQL statements/queries when dealing with QOS in the database.

DB_QUERY SQL statements/queries when dealing with transactions and such in the database.

DB_RESERVATION SQL statements/queries when dealing with reservations in the database.

DB_RESOURCE SQL statements/queries when dealing with resources like licenses in the database.

DB_STEP SQL statements/queries when dealing with steps in the database.

DB_USAGE SQL statements/queries when dealing with usage queries and inserts in the
database.

DB_WCKEY SQL statements/queries when dealing with wckeys in the database.

DebugLevel
The level of detail to provide the Slurm Database Daemon's logs. The default value is info.

quiet Log nothing

fatal Log only fatal errors

error Log only errors

info Log errors and general informational messages

verbose Log errors and verbose informational messages

debug Log errors and verbose informational messages and debugging messages

debug2 Log errors and verbose informational messages and more debugging messages

debug3 Log errors and verbose informational messages and even more debugging messages

debug4 Log errors and verbose informational messages and even more debugging messages

debug5 Log errors and verbose informational messages and even more debugging messages

DefaultQOS
When adding a new cluster this will be used as the qos for the cluster unless something is
explicitly set by the admin with the create.

LogFile
Fully qualified pathname of a file into which the Slurm Database Daemon's logs are written. The
default value is none (performs logging via syslog).
See the section LOGGING in the slurm.conf man page if a pathname is specified.

LogTimeFormat
Format of the timestamp in slurmdbd log files. Accepted values are "iso8601", "iso8601_ms",
"rfc5424", "rfc5424_ms", "clock", and "short". The values ending in "_ms" differ from the ones
without in that fractional seconds with millisecond precision are printed. The default value is
"iso8601_ms". The "rfc5424" formats are the same as the "iso8601" formats except that the timezone
value is also shown. The "clock" format shows a timestamp in microseconds retrieved with the C
standard clock() function. The "short" format is a short date and time format. The "thread_id"
format shows the timestamp in the C standard ctime() function form without the year but including
the microseconds, the daemon's process ID and the current thread ID.

MessageTimeout
Time permitted for a round-trip communication to complete in seconds. Default value is 10 seconds.

PidFile
Fully qualified pathname of a file into which the Slurm Database Daemon may write its process ID.
This may be used for automated signal processing. The default value is "/var/run/slurmdbd.pid".

PluginDir
Identifies the places in which to look for Slurm plugins. This is a colon-separated list of
directories, like the PATH environment variable. The default value is "/usr/local/lib/slurm".

PrivateData
This controls what type of information is hidden from regular users. By default, all information
is visible to all users. User SlurmUser, root, and users with AdminLevel=Admin can always view
all information. Multiple values may be specified with a comma separator. Acceptable values
include:

accounts
prevents users from viewing any account definitions unless they are coordinators of them.

jobs prevents users from viewing job records belonging to other users unless they are
coordinators of the association running the job when using sacct.

reservations
restricts getting reservation information to users with operator status and above.

usage prevents users from viewing usage of any other user. This applys to sreport.

users prevents users from viewing information of any user other than themselves, this also makes
it so users can only see associations they deal with. Coordinators can see associations of
all users they are coordinator of, but can only see themselves when listing users.

PurgeEventAfter
Events happening on the cluster over this age are purged from the database. This includes node
down times and such. The time is a numeric value and is a number of months. If you want to purge
more often you can include "hours", or "days" behind the numeric value to get those more frequent
purges (i.e. a value of "12hours" would purge everything older than 12 hours). The purge takes
place at the start of the each purge interval. For example, if the purge time is 2 months, the
purge would happen at the beginning of each month. If not set (default), then job step records
are never purged.

PurgeJobAfter
Individual job records over this age are purged from the database. Aggregated information will be
preserved indefinitely. The time is a numeric value and is a number of months. If you want to
purge more often you can include "hours", or "days" behind the numeric value to get those more
frequent purges (i.e. a value of "12hours" would purge everything older than 12 hours). The purge
takes place at the start of the each purge interval. For example, if the purge time is 2 months,
the purge would happen at the beginning of each month. If not set (default), then job records are
never purged.

PurgeResvAfter
Individual reservation records over this age are purged from the database. Aggregated information
will be preserved indefinitely. The time is a numeric value and is a number of months. If you
want to purge more often you can include "hours", or "days" behind the numeric value to get those
more frequent purges (i.e. a value of "12hours" would purge everything older than 12 hours). The
purge takes place at the start of the each purge interval. For example, if the purge time is 2
months, the purge would happen at the beginning of each month. If not set (default), then
reservation records are never purged.

PurgeStepAfter
Individual job step records over this age are purged from the database. Aggregated information
will be preserved indefinitely. The time is a numeric value and is a number of months. If you
want to purge more often you can include "hours", or "days" behind the numeric value to get those
more frequent purges (i.e. a value of "12hours" would purge everything older than 12 hours). The
purge takes place at the start of the each purge interval. For example, if the purge time is 2
months, the purge would happen at the beginning of each month. If not set (default), then job
step records are never purged.

PurgeSuspendAfter
Records of individual suspend times for jobs over this age are purged from the database.
Aggregated information will be preserved indefinitely. The time is a numeric value and is a
number of months. If you want to purge more often you can include "hours", or "days" behind the
numeric value to get those more frequent purges (i.e. a value of "12hours" would purge everything
older than 12 hours). The purge takes place at the start of the each purge interval. For
example, if the purge time is 2 months, the purge would happen at the beginning of each month. If
not set (default), then job step records are never purged.

SlurmUser
The name of the user that the slurmctld daemon executes as. This user must exist on the machine
executing the Slurm Database Daemon and have the same user ID as the hosts on which slurmctld
execute. For security purposes, a user other than "root" is recommended. The default value is
"root".

StorageHost
Define the name of the host the database is running where we are going to store the data. Ideally
this should be the host on which slurmdbd executes.

StorageBackupHost
Define the name of the backup host the database is running where we are going to store the data.
This can be viewed as a backup solution when the StorageHost is not responding. It is up to the
backup solution to enforce the coherency of the accounting information between the two hosts. With
clustered database solutions (active/passive HA), you would not need to use this feature. Default
is none.

StorageLoc
Specify the name of the database as the location where accounting records are written.

StoragePass
Define the password used to gain access to the database to store the job accounting data.

StoragePort
The port number that the Slurm Database Daemon (slurmdbd) communicates with the database.

StorageType
Define the accounting storage mechanism type. Acceptable values at present include
"accounting_storage/mysql". The value "accounting_storage/mysql" indicates that accounting
records should be written to a MySQL or MariaDB database specified by the StorageLoc parameter.
This value must be specified.

StorageUser
Define the name of the user we are going to connect to the database with to store the job
accounting data.

TrackWCKey
Boolean yes or no. Used to set display and track of the Workload Characterization Key. Must be
set to track wckey usage. This must be set to generate rolled up usage tables from WCKeys. NOTE:
If TrackWCKey is set here and not in your various slurm.conf files all jobs will be attributed to
their default WCKey.

TrackSlurmctldDown
Boolean yes or no. If set the slurmdbd will mark all idle resources on the cluster as down when a
slurmctld disconnects or is no longer reachable. The default is no.

EXAMPLE

       #
       # Sample /etc/slurmdbd.conf
       #
       ArchiveEvents=yes
       ArchiveJobs=yes
       ArchiveResv=yes
       ArchiveSteps=no
       ArchiveSuspend=no
       #ArchiveScript=/usr/sbin/slurm.dbd.archive
       AuthInfo=/var/run/munge/munge.socket.2
       AuthType=auth/munge
       DbdHost=db_host
       DebugLevel=4
       PurgeEventAfter=1month
       PurgeJobAfter=12month
       PurgeResvAfter=1month
       PurgeStepAfter=1month
       PurgeSuspendAfter=1month
       LogFile=/var/log/slurmdbd.log
       PidFile=/var/tmp/jette/slurmdbd.pid
       SlurmUser=slurm_mgr
       StoragePass=shazaam
       StorageType=accounting_storage/mysql
       StorageUser=database_mgr

COPYING

       Copyright  (C)  2008-2010  Lawrence Livermore National Security.  Produced at Lawrence Livermore National
       Laboratory (cf, DISCLAIMER).
       Copyright (C) 2010-2014 SchedMD LLC.

       This file is part of Slurm, a resource management program.  For details, see <http://slurm.schedmd.com/>.

       Slurm is free software; you can redistribute it and/or modify it under  the  terms  of  the  GNU  General
       Public License as published by the Free Software Foundation; either version 2 of the License, or (at your
       option) any later version.

       Slurm  is  distributed  in  the  hope  that it will be useful, but WITHOUT ANY WARRANTY; without even the
       implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.   See  the  GNU  General  Public
       License for more details.

FILES

       /etc/slurmdbd.conf

NAME

DESCRIPTION

EXAMPLE

COPYING

FILES

SEE ALSO