Platform LSF Version 6.0 - Administering Platform LSF - Troubleshooting and Error Messages

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Troubleshooting and Error Messages

Contents

Shared File Access
Common LSF Problems
Error Messages
Setting Daemon Message Log to Debug Level
Setting Daemon Timing Levels

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Shared File Access

A frequent problem with LSF is non-accessible files due to a non-uniform file space. If a task is run on a remote host where a file it requires cannot be accessed using the same name, an error results. Almost all interactive LSF commands fail if the user's current working directory cannot be found on the remote host.

Shared files on UNIX

If you are running NFS, rearranging the NFS mount table may solve the problem. If your system is running the automount server, LSF tries to map the filenames, and in most cases it succeeds. If shared mounts are used, the mapping may break for those files. In such cases, specific measures need to be taken to get around it.

The automount maps must be managed through NIS. When LSF tries to map filenames, it assumes that automounted file systems are mounted under the /tmp_mnt directory.

Shared files on Windows

To share files among Windows machines, set up a share on the server and access it from the client. You can access files on the share either by specifying a UNC path (\\server\share\path) or connecting the share to a local drive name and using a drive:\path syntax. Using UNC is recommended because drive mappings may be different across machines, while UNC allows you to unambiguously refer to a file on the network.

Shared files across UNIX and Windows

For file sharing across UNIX and Windows, you require a third party NFS product on Windows to export directories from Windows to UNIX.

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Common LSF Problems

This section lists some other common problems with the LIM, RES, mbatchd, sbatchd, and interactive applications.

Most problems are due to incorrect installation or configuration. Check the error log files; often the log message points directly to the problem.

LIM dies quietly

Run the following command to check for errors in the LIM configuration files.

% lsadmin ckconfig -v

This displays most configuration errors. If this does not report any errors, check in the LIM error log.

LIM unavailable

Sometimes the LIM is up, but executing the lsload command prints the following error message:

Communication time out.

If the LIM has just been started, this is normal, because the LIM needs time to get initialized by reading configuration files and contacting other LIMs.

If the LIM does not become available within one or two minutes, check the LIM error log for the host you are working on.

When the local LIM is running but there is no master LIM in the cluster, LSF applications display the following message:

Cannot locate master LIM now, try later.

Check the LIM error logs on the first few hosts listed in the Host section of the lsf.cluster.cluster_name file. If LSF_MASTER_LIST is defined in lsf.conf, check the LIM error logs on the hosts listed in this parameter instead.

RES does not start

Check the RES error log.

UNIX

If the RES is unable to read the lsf.conf file and does not know where to write error messages, it logs errors into syslog(3).

Windows

If the RES is unable to read the lsf.conf file and does not know where to write error messages, it logs errors into C:\temp.

User permission denied

If remote execution fails with the following error message, the remote host could not securely determine the user ID of the user requesting remote execution.

User permission denied.

Check the RES error log on the remote host; this usually contains a more detailed error message.

If you are not using an identification daemon (LSF_AUTH is not defined in the lsf.conf file), then all applications that do remote executions must be owned by root with the setuid bit set. This can be done as follows.

% chmod 4755 filename

If the binaries are on an NFS-mounted file system, make sure that the file system is not mounted with the nosuid flag.

If you are using an identification daemon (defined in the lsf.conf file by LSF_AUTH), inetd must be configured to run the daemon. The identification daemon must not be run directly.

If LSF_USE_HOSTEQUIV is defined in the lsf.conf file, check if /etc/hosts.equiv or HOME/.rhosts on the destination host has the client host name in it. Inconsistent host names in a name server with /etc/hosts and /etc/hosts.equiv can also cause this problem.

On SGI hosts running a name server, you can try the following command to tell the host name lookup code to search the /etc/hosts file before calling the name server.

% setenv HOSTRESORDER "local,nis,bind"

Non-uniform file name space

A command may fail with the following error message due to a non-uniform file name space.

chdir(...) failed: no such file or directory

You are trying to execute a command remotely, where either your current working directory does not exist on the remote host, or your current working directory is mapped to a different name on the remote host.

If your current working directory does not exist on a remote host, you should not execute commands remotely on that host.

On UNIX

If the directory exists, but is mapped to a different name on the remote host, you have to create symbolic links to make them consistent.

LSF can resolve most, but not all, problems using automount. The automount maps must be managed through NIS. Follow the instructions in your Release Notes for obtaining technical support if you are running automount and LSF is not able to locate directories on remote hosts.

Batch daemons die quietly

First, check the sbatchd and mbatchd error logs. Try running the following command to check the configuration.

% badmin ckconfig

This reports most errors. You should also check if there is any email in the LSF administrator's mailbox. If the mbatchd is running but the sbatchd dies on some hosts, it may be because mbatchd has not been configured to use those hosts.

See Host not used by LSF.

sbatchd starts but mbatchd does not

Check whether LIM is running. You can test this by running the lsid command. If LIM is not running properly, follow the suggestions in this chapter to fix the LIM first. It is possible that mbatchd is temporarily unavailable because the master LIM is temporarily unknown, causing the following error message.

sbatchd: unknown service

Check whether services are registered properly. See Registering Service Ports for information about registering LSF services.

Host not used by LSF

If you configure a list of server hosts in the Host section of the lsb.hosts file, mbatchd allows sbatchd to run only on the hosts listed. If you try to configure an unknown host in the HostGroup or HostPartition sections of the lsb.hosts file, or as a HOSTS definition for a queue in the lsb.queues file, mbatchd logs the following message.

mbatchd on host: LSB_CONFDIR/cluster/configdir/file(line #): Host hostname is not used by lsbatch; ignored

If you start sbatchd on a host that is not known by mbatchd, mbatchd rejects the sbatchd. The sbatchd logs the following message and exits.

This host is not used by lsbatch system.

Both of these errors are most often caused by not running the following commands, in order, after adding a host to the configuration.

lsadmin reconfig badmin reconfig

You must run both of these before starting the daemons on the new host.

UNKNOWN host type or model

Viewing UNKNOWN host type or model

Run lshosts. A model or type UNKNOWN indicates the host is down or the LIM on the host is down. You need to take immediate action. For example:

% lshostsHOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCES hostA UNKNOWN Ultra2 20.2 2 256M 710M Yes ()

Fixing UNKNOWN host type or model
Start the host.
Run lsadmin limstartup to start up the LIMs on the host. For example:
# lsadmin limstartup hostAStarting up LIM on <hostA> .... done

You can specify more than one host name to start up LIM on multiple hosts. If you do not specify a host name, LIM is started up on the host from which the command is submitted.

On UNIX, in order to start up LIM remotely, you must be root or listed in lsf.sudoers and be able to run the rsh command across all hosts without entering a password. See Prerequisites for more details.
Wait a few seconds, then run lshosts again. You should now be able to see a specific model or type for the host or DEFAULT. If you see DEFAULT, you can leave it as is. When automatic detection of host type or model fails, the type or model is set to DEFAULT. LSF will work on the host. A DEFAULT model may be inefficient because of incorrect CPU factors. A DEFAULT type may cause binary incompatibility because a job from a DEFAULT host type can be migrated to another.
DEFAULT host type or model

Viewing DEFAULT host type or model

Run lshosts. If Model or Type are displayed as DEFAULT when you use lshosts and automatic host model and type detection is enabled, you can leave it as is or change it. For example:

% lshostsHOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCE S hostA DEFAULT DEFAULT 1 2 256M 710M Yes ()

If model is DEFAULT, LSF will work correctly but the host will have a CPU factor of 1, which may not make efficient use of the host model.

If type is DEFAULT, there may be binary incompatibility. For example, there are 2 hosts, one is Solaris, the other is HP. If both hosts are set to type DEFAULT, it means jobs running on the Solaris host can be migrated to the HP host and vice-versa.

Fixing DEFAULT host type
Run lim -t on the host whose type is DEFAULT:
% lim -tHost Type : sun4 Host Architecture : SUNWUltra2_200_sparcv9 Matched Type : DEFAULT Matched Architecture : SUNWUltra2_300_sparc Matched Model : Ultra2 CPU Factor : 20.2

Note the value of Host Type and Host Architecture.
Edit lsf.shared.
In the HostType section, enter a new host type. Use the host type name detected with lim -t. For example:

Begin HostType TYPENAME DEFAULT CRAYJ sun4 ...
Save changes to lsf.shared.
Run lsadmin reconfig to reconfigure LIM.
Fixing DEFAULT host model
Run the lim -t command on the host whose model is DEFAULT:
% lim -tHost Type : sun4 Host Architecture : SUNWUltra2_200_sparcv9 Matched Type : DEFAULT Matched Architecture : SUNWUltra2_300_sparc Matched Model : DEFAULT CPU Factor : 20.2

Note the value of Host Architecture.
Edit lsf.shared.
In the HostModel section, add the new model with architecture and CPU factor. Add the host model to the end of the host model list. The limit for host model entries is 127. Lines commented out with # are not counted as part of the 127 line limit.

Use the architecture detected with lim -t. For example:

Begin HostModel MODELNAME CPUFACTOR ARCHITECTURE # keyword Ultra2 20 SUNWUltra2_200_sparcv9 End HostModel
Save changes to lsf.shared.
Run lsadmin reconfig to reconfigure LIM.
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Error Messages

The following error messages are logged by the LSF daemons, or displayed by the following commands.

lsadmin ckconfig badmin ckconfig

General errors

The messages listed in this section may be generated by any LSF daemon.

can't open file: error

The daemon could not open the named file for the reason given by error. This error is usually caused by incorrect file permissions or missing files. All directories in the path to the configuration files must have execute (x) permission for the LSF administrator, and the actual files must have read (r) permission. Missing files could be caused by incorrect path names in the lsf.conf file, running LSF daemons on a host where the configuration files have not been installed, or having a symbolic link pointing to a nonexistent file or directory.

file(line): malloc failed

Memory allocation failed. Either the host does not have enough available memory or swap space, or there is an internal error in the daemon. Check the program load and available swap space on the host; if the swap space is full, you must add more swap space or run fewer (or smaller) programs on that host.

auth_user: getservbyname(ident/tcp) failed: error; ident must be registered in services

LSF_AUTH=ident is defined in the lsf.conf file, but the ident/tcp service is not defined in the services database. Add ident/tcp to the services database, or remove LSF_AUTH from the lsf.conf file and setuid root those LSF binaries that require authentication.

auth_user: operation(<host>/<port>) failed: error

LSF_AUTH=ident is defined in the lsf.conf file, but the LSF daemon failed to contact the identd daemon on host. Check that identd is defined in inetd.conf and the identd daemon is running on host.

auth_user: Authentication data format error (rbuf=<data>) from <host>/<port> auth_user: Authentication port mismatch (...) from <host>/<port>

LSF_AUTH=ident is defined in the lsf.conf file, but there is a protocol error between LSF and the ident daemon on host. Make sure the ident daemon on the host is configured correctly.

userok: Request from bad port (<port_number>), denied

LSF_AUTH is not defined, and the LSF daemon received a request that originates from a non-privileged port. The request is not serviced.

Set the LSF binaries to be owned by root with the setuid bit set, or define LSF_AUTH=ident and set up an ident server on all hosts in the cluster. If the binaries are on an NFS-mounted file system, make sure that the file system is not mounted with the nosuid flag.

userok: Forged username suspected from <host>/<port>: <claimed_user>/<actual_user>

The service request claimed to come from user claimed_user but ident authentication returned that the user was actually actual_user. The request was not serviced.

userok: ruserok(<host>,<uid>) failed

LSF_USE_HOSTEQUIV is defined in the lsf.conf file, but host has not been set up as an equivalent host (see /etc/host.equiv), and user uid has not set up a .rhosts file.

init_AcceptSock: RES service(res) not registered, exiting init_AcceptSock: res/tcp: unknown service, exiting initSock: LIM service not registered. initSock: Service lim/udp is unknown. Read LSF Guide for help get_ports: <serv> service not registered

The LSF services are not registered. See Registering Service Ports for information about configuring LSF services.

init_AcceptSock: Can't bind daemon socket to port <port>: error, exiting init_ServSock: Could not bind socket to port <port>: error

These error messages can occur if you try to start a second LSF daemon (for example, RES is already running, and you execute RES again). If this is the case, and you want to start the new daemon, kill the running daemon or use the lsadmin or badmin commands to shut down or restart the daemon.

Configuration errors

The messages listed in this section are caused by problems in the LSF configuration files. General errors are listed first, and then errors from specific files.

file(line): Section name expected after Begin; ignoring section file(line): Invalid section name name; ignoring section

The keyword begin at the specified line is not followed by a section name, or is followed by an unrecognized section name.

file(line): section section: Premature EOF

The end of file was reached before reading the end section line for the named section.

file(line): keyword line format error for section section; Ignore this section

The first line of the section should contain a list of keywords. This error is printed when the keyword line is incorrect or contains an unrecognized keyword.

file(line): values do not match keys for section section; Ignoring line

The number of fields on a line in a configuration section does not match the number of keywords. This may be caused by not putting () in a column to represent the default value.

file: HostModel section missing or invalid file: Resource section missing or invalid file: HostType section missing or invalid

The HostModel, Resource, or HostType section in the lsf.shared file is either missing or contains an unrecoverable error.

file(line): Name name reserved or previously defined. Ignoring index

The name assigned to an external load index must not be the same as any built-in or previously defined resource or load index.

file(line): Duplicate clustername name in section cluster. Ignoring current line

A cluster name is defined twice in the same lsf.shared file. The second definition is ignored.

file(line): Bad cpuFactor for host model model. Ignoring line

The CPU factor declared for the named host model in the lsf.shared file is not a valid number.

file(line): Too many host models, ignoring model name

You can declare a maximum of 127 host models in the lsf.shared file.

file(line): Resource name name too long in section resource. Should be less than 40 characters. Ignoring line

The maximum length of a resource name is 39 characters. Choose a shorter name for the resource.

file(line): Resource name name reserved or previously defined. Ignoring line.

You have attempted to define a resource name that is reserved by LSF or already defined in the lsf.shared file. Choose another name for the resource.

file(line): illegal character in resource name: name, section resource. Line ignored.

Resource names must begin with a letter in the set [a-zA-Z], followed by letters, digits or underscores [a-zA-Z0-9_].

LIM messages

The following messages are logged by the LIM:

main: LIM cannot run without licenses, exiting

The LSF software license key is not found or has expired. Check that FLEXlm is set up correctly, or contact your LSF technical support.

main: Received request from unlicensed host <host>/<port>

LIM refuses to service requests from hosts that do not have licenses. Either your LSF license has expired, or you have configured LSF on more hosts than your license key allows.

initLicense: Trying to get license for LIM from source <LSF_CONFDIR/license.dat> getLicense: Can't get software license for LIM from license file <LSF_CONFDIR/license.dat>: feature not yet available.

Your LSF license is not yet valid. Check whether the system clock is correct.

findHostbyAddr/<proc>: Host <host>/<port> is unknown by <myhostname> function: Gethostbyaddr_(<host>/<port>) failed: error main: Request from unknown host <host>/<port>: error function: Received request from non-LSF host <host>/<port>

The daemon does not recognize host. The request is not serviced. These messages can occur if host was added to the configuration files, but not all the daemons have been reconfigured to read the new information. If the problem still occurs after reconfiguring all the daemons, check whether the host is a multi-addressed host.

See Host Naming for information about working with multi-addressed hosts.

rcvLoadVector: Sender (<host>/<port>) may have different config? MasterRegister: Sender (host) may have different config?

LIM detected inconsistent configuration information with the sending LIM. Run the following command so that all the LIMs have the same configuration information.

% lsadmin reconfig

Note any hosts that failed to be contacted.

rcvLoadVector: Got load from client-only host <host>/<port>. Kill LIM on <host>/<port>

A LIM is running on a client host. Run the following command, or go to the client host and kill the LIM daemon.

% lsadmin limshutdown hostsaveIndx: Unknown index name <name> from ELIM

LIM received an external load index name that is not defined in the lsf.shared file. If name is defined in lsf.shared, reconfigure the LIM. Otherwise, add name to the lsf.shared file and reconfigure all the LIMs.

saveIndx: ELIM over-riding value of index <name>

This is a warning message. The ELIM sent a value for one of the built-in index names. LIM uses the value from ELIM in place of the value obtained from the kernel.

getusr: Protocol error numIndx not read (cc=num): error getusr: Protocol error on index number (cc=num): error

Protocol error between ELIM and LIM.

RES messages

These messages are logged by the RES.

doacceptconn: getpwnam(<username>@<host>/<port>) failed: error doacceptconn: User <username> has uid <uid1> on client host <host>/<port>, uid <uid2> on RES host; assume bad user authRequest: username/uid <userName>/<uid>@<host>/<port> does not exist authRequest: Submitter's name <clname>@<clhost> is different from name <lname> on this host

RES assumes that a user has the same userID and username on all the LSF hosts. These messages occur if this assumption is violated. If the user is allowed to use LSF for interactive remote execution, make sure the user's account has the same userID and username on all LSF hosts.

doacceptconn: root remote execution permission denied authRequest: root job submission rejected

Root tried to execute or submit a job but LSF_ROOT_REX is not defined in the lsf.conf file.

resControl: operation permission denied, uid = <uid>

The user with user ID uid is not allowed to make RES control requests. Only the LSF manager, or root if LSF_ROOT_REX is defined in lsf.conf, can make RES control requests.

resControl: access(respath, X_OK): error

The RES received a reboot request, but failed to find the file respath to re- execute itself. Make sure respath contains the RES binary, and it has execution permission.

mbatchd and sbatchd messages

The following messages are logged by the mbatchd and sbatchd daemons:

renewJob: Job <jobId>: rename(<from>,<to>) failed: error

mbatchd failed in trying to re-submit a rerunnable job. Check that the file from exists and that the LSF administrator can rename the file. If from is in an AFS directory, check that the LSF administrator's token processing is properly setup.

See the document "Installing LSF on AFS" on the Platform Web site for more information about installing on AFS.

logJobInfo_: fopen(<logdir/info/jobfile>) failed: error logJobInfo_: write <logdir/info/jobfile> <data> failed: error logJobInfo_: seek <logdir/info/jobfile> failed: error logJobInfo_: write <logdir/info/jobfile> xdrpos <pos> failed: error logJobInfo_: write <logdir/info/jobfile> xdr buf len <len> failed: error logJobInfo_: close(<logdir/info/jobfile>) failed: error rmLogJobInfo: Job <jobId>: can't unlink(<logdir/info/jobfile>): error rmLogJobInfo_: Job <jobId>: can't stat(<logdir/info/jobfile>): error readLogJobInfo: Job <jobId> can't open(<logdir/info/jobfile>): error start_job: Job <jobId>: readLogJobInfo failed: error readLogJobInfo: Job <jobId>: can't read(<logdir/info/jobfile>) size size: error initLog: mkdir(<logdir/info>) failed: error <fname>: fopen(<logdir/file> failed: error getElogLock: Can't open existing lock file <logdir/file>: error getElogLock: Error in opening lock file <logdir/file>: error releaseElogLock: unlink(<logdir/lockfile>) failed: error touchElogLock: Failed to open lock file <logdir/file>: error touchElogLock: close <logdir/file> failed: error

mbatchd failed to create, remove, read, or write the log directory or a file in the log directory, for the reason given in error. Check that LSF administrator has read, write, and execute permissions on the logdir directory.

If logdir is on AFS, check that the instructions in the document "Installing LSF on AFS" on the Platform Web site have been followed. Use the fs ls command to verify that the LSF administrator owns logdir and that the directory has the correct acl.

replay_newjob: File <logfile> at line <line>: Queue <queue> not found, saving to queue <lost_and_found> replay_switchjob: File <logfile> at line <line>: Destination queue <queue> not found, switching to queue <lost_and_found>

When mbatchd was reconfigured, jobs were found in queue but that queue is no longer in the configuration.

replay_startjob: JobId <jobId>: exec host <host> not found, saving to host <lost_and_found>

When mbatchd was reconfigured, the event log contained jobs dispatched to host, but that host is no longer configured to be used by LSF.

do_restartReq: Failed to get hData of host <host_name>/<host_addr>

mbatchd received a request from sbatchd on host host_name, but that host is not known to mbatchd. Either the configuration file has been changed but mbatchd has not been reconfigured to pick up the new configuration, or host_name is a client host but the sbatchd daemon is running on that host. Run the following command to reconfigure the mbatchd or kill the sbatchd daemon on host_name.

% badmin reconfig

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Setting Daemon Message Log to Debug Level

The message log level for LSF daemons is set in lsf.conf with the parameter LSF_LOG_MASK. To include debugging messages, set LSF_LOG_MASK to one of:

LOG_DEBUG
LOG_DEBUG1
LOG_DEBUG2
LOG_DEBUG3

By default, LSF_LOG_MASK=LOG_WARNING and these debugging messages are not displayed.

The debugging log classes for LSF daemons is set in lsf.conf with the parameters LSB_DEBUG_CMD, LSB_DEBUG_MBD, LSB_DEBUG_SBD, LSB_DEBUG_SCH, LSF_DEBUG_LIM, LSF_DEBUG_RES.

The location of log files is specified with the parameter LSF_LOGDIR in lsf.conf.

You can use the lsadmin and badmin commands to temporarily change the class, log file, or message log level for specific daemons such as LIM, RES, mbatchd, sbatchd, and mbschd without changing lsf.conf.

How the message log level takes effect

The message log level you set will only be in effect from the time you set it until you turn it off or the daemon stops running, whichever is sooner. If the daemon is restarted, its message log level is reset back to the value of LSF_LOG_MASK and the log file is stored in the directory specified by LSF_LOGDIR.

Limitations

When debug or timing level is set for RES with lsadmin resdebug, or lsadmin restime, the debug level only affects root RES. The root RES is the RES that runs under the root user ID.

Application RESs always use lsf.conf to set the debug environment. Application RESs are the RESs that have been created by sbatchd to service jobs and run under the ID of the user who submitted the job.

This means that any RES that has been launched automatically by the LSF system will not be affected by temporary debug or timing settings. The application RES will retain settings specified in lsf.conf.

Debug commands for daemons

The following commands set temporary message log level options for LIM, RES, mbatchd, sbatchd, and mbschd.

lsadmin limdebug [-c class_name] [-l debug_level ] [-f logfile_name] [-o] [host_name] lsadmin resdebug [-c class_name] [-l debug_level ] [-f logfile_name] [-o] [host_name] badmin mbddebug [-c class_name] [-l debug_level ] [-f logfile_name] [-o] badmin sbddebug [-c class_name] [-l debug_level ] [-f logfile_name] [-o] [host_name] badmin schddebug [-c class_name] [-l debug_level ] [-f logfile_name] [-o]

For a detailed description of lsadmin and badmin, see the Platform LSF Reference.

Examples

% lsadmin limdebug -c "LC_MULTI LC_PIM" -f myfile hostA hostB
Log additional messages for the LIM daemon running on hostA and hostB, related to MultiCluster and PIM. Create log files in the LSF_LOGDIR directory with the name myfile.lim.log.hostA, and myfile.lim.log.hostB. The debug level is the default value, LOG_DEBUG level in parameter LSF_LOG_MASK.

% lsadmin limdebug -o hostA hostB
Turn off temporary debug settings for LIM on hostA and hostB and reset them to the daemon starting state. The message log level is reset back to the value of LSF_LOG_MASK and classes are reset to the value of LSF_DEBUG_RES, LSF_DEBUG_LIM, LSB_DEBUG_MBD, LSB_DEBUG_SBD, and LSB_DEBUG_SCH. The log file is reset to the LSF system log file in the directory specified by LSF_LOGDIR in the format daemon_name.log.host_name.

% badmin sbddebug -o
Turn off temporary debug settings for sbatchd on the local host (host from which the command was submitted) and reset them to the daemon starting state. The message log level is reset back to the value of LSF_LOG_MASK and classes are reset to the value of LSF_DEBUG_RES, LSF_DEBUG_LIM, LSB_DEBUG_MBD, LSB_DEBUG_SBD, and LSB_DEBUG_SCH. The log file is reset to the LSF system log file in the directory specified by LSF_LOGDIR in the format daemon_name.log.host_name.

% badmin mbddebug -l 1
Log messages for mbatchd running on the local host and set the log message level to LOG_DEBUG1. This command must be submitted from the host on which mbatchd is running because host_name cannot be specified with mbddebug.

% badmin sbddebug -f hostB/myfolder/myfile hostA
Log messages for sbatchd running on hostA, to the directory myfile on the server hostB, with the file name myfile.sbatchd.log.hostA. The debug level is the default value, LOG_DEBUG level in parameter LSF_LOG_MASK.

% badmin schddebug -l 2
Log messages for mbatchd running on the local host and set the log message level to LOG_DEBUG2. This command must be submitted from the host on which mbatchd is running because host_name cannot be specified with schddebug.

% lsadmin resdebug -o hostA
Turn off temporary debug settings for RES on hostA and reset them to the daemon starting state. The message log level is reset back to the value of LSF_LOG_MASK and classes are reset to the value of LSF_DEBUG_RES, LSF_DEBUG_LIM, LSB_DEBUG_MBD, LSB_DEBUG_SBD, and LSB_DEBUG_SCH. The log file is reset to the LSF system log file in the directory specified by LSF_LOGDIR in the format daemon_name.log.host_name.

For timing level examples, see Setting Daemon Timing Levels.

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Setting Daemon Timing Levels

The timing log level for LSF daemons is set in lsf.conf with the parameters LSB_TIME_CMD, LSB_TIME_MBD, LSB_TIME_SBD, LSB_TIME_SCH, LSF_TIME_LIM, LSF_TIME_RES.

The location of log files is specified with the parameter LSF_LOGDIR in lsf.conf. Timing is included in the same log files as messages.

To change the timing log level, you need to stop any running daemons, change lsf.conf, and then restart the daemons.

It is useful to track timing to evaluate the performance of the LSF system. You can use the lsadmin and badmin commands to temporarily change the timing log level for specific daemons such as LIM, RES, mbatchd, sbatchd, and mbschd without changing lsf.conf.

How the timing log level takes effect

The timing log level you set will only be in effect from the time you set it until you turn the timing log level off or the daemon stops running, whichever is sooner. If the daemon is restarted, its timing log level is reset back to the value of the corresponding parameter for the daemon (LSB_TIME_MBD, LSB_TIME_SBD, LSF_TIME_LIM, LSF_TIME_RES). Timing log messages are stored in the same file as other log messages in the directory specified with the parameter LSF_LOGDIR in lsf.conf.

Limitations

When debug or timing level is set for RES with lsadmin resdebug, or lsadmin restime, the debug level only affects root RES. The root RES is the RES that runs under the root user ID.

An application RES always uses lsf.conf to set the debug environment. An application RES is the RES that has been created by sbatchd to service jobs and run under the ID of the user who submitted the job.

This means that any RES that has been launched automatically by the LSF system will not be affected by temporary debug or timing settings. The application RES will retain settings specified in lsf.conf.

Timing level commands for daemons

The total execution time of a function in the LSF system is recorded to evaluate response time of jobs submitted locally or remotely.

The following commands set temporary timing options for LIM, RES, mbatchd, sbatchd, and mbschd.

lsadmin limtime [-l timing_level] [-f logfile_name] [-o] [host_name] lsadmin restime [-l timing_level] [-f logfile_name] [-o] [host_name] badmin mbdtime [-l timing_level] [-f logfile_name] [-o] badmin sbdtime [-l timing_level] [-f logfile_name] [-o] [host_name] badmin schdtime [-l timing_level] [-f logfile_name] [-o]

For debug level examples, see Setting Daemon Message Log to Debug Level.

For a detailed description of lsadmin and badmin, see the Platform LSF Reference.

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Date Modified: January 12, 2004
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