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SRMV2.2(8) DPM Administrator Commands SRMV2.2(8)

NAME

dpm-srmv2.2 - start the SRM v2.2 server

SYNOPSIS

dpm-srmv2.2 [ -c config_file ] [ -l log_file ] [ -t nbthreads ]

DESCRIPTION

The dpm-srmv2.2 command starts the SRM v2.2 server. This command is usually executed at system startup time (/etc/rc.local). This will read the Disk Pool Manager "request" database configuration file, create a pool of threads and look for requests. Each of them is processed in a thread which opens a connection to the database server if necessary. When a request has been completed, the thread becomes idle until it is allocated to another request. The connection to the database server is kept open between 2 requests.

All error messages and statistical information are kept in a log.

The Disk Pool Manager listen port number can be defined on client hosts and on the server itself in either of the following ways:

setting an environment variable SRMV2_2_PORT

setenv SRMV2_2_PORT 8446

an entry in /etc/shift.conf like:

SRMV2_2 PORT 8446

If none of these methods is used, the default port number is taken from the definition of SRMV2_2_PORT in srm_server.h.

The Disk Pool Manager "request" database keeps the requests and their status even after completion.

The Disk Pool Manager configuration file contains password information for the database and must be readable/writable only by root. It contains a single line in the format:

username/password@server
or
username/password@server/dbname

where 'username' and 'password' are the credentials to login to the database instance identified by 'server'. If 'dbname' is not specified, "dpm_db" is used.

In the log each entry has a timestamp. All entries corresponding to one request have the same request id. For each user command there is one message giving information about the requestor (hostname, dn) and one message SRM98 giving the command itself. The completion code of the command is also logged.

OPTIONS

-c config_file
Specifies a different path for the Disk Pool Manager configuration file.
-l log_file
Specifies a different path for the Disk Pool Manager log file. The special value syslog will send the log messages to the system logger syslogd.
-t nbthreads
specifies the number of threads. The value must be lower than DPM_MAXNBTHREADS (currently 100). Default is 20.

FILES

/etc/DPMCONFIG
configuration file
/var/log/dpm-srmv2.2/log

EXAMPLES

Here is a small log:
12/03 15:54:51 17419 dpm-srmv2.2: started
12/03 16:54:54 17419,0 PrepareToPut: request by xxx from lxb1908.cern.ch
12/03 16:54:54 17419,0 PrepareToPut: SRM98 - PrepareToPut 3 bfc51f99-17bd-4a45-b440-0fc33ec7a8d4
12/03 16:54:54 17419,0 PrepareToPut: SRM98 - PrepareToPut 0 srm://lxb0722.cern.ch:8446//dpm/dteam/srm_test_suite_file.17702.19410

SEE ALSO

Clogit(3), dpm(8)
$Date: 2012-06-06 16:39:34 +0200 (Wed, 06 Jun 2012) $ LCG