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Full Discussion: Performance problem - waiting on cache
Operating Systems HP-UX Performance problem - waiting on cache Post 302489784 by keelba on Friday 21st of January 2011 03:42:56 PM
Old 01-21-2011
The Superdome is Itanium, sorry I did not specify that earlier. There are no other applications or databases running on this server.

I am trying to work with a DBA to find the cause. The database, server, and batch process have not changed in over a year. The uptime was more than 365 days. This is our pre-production database so, I am told, the data has not grown either.

The more I look at it, the more it looks like everything is running great from the OS perspective, really fast, in fact. It looks like all of the data is loaded up into the dbc and the query is repeatedly hitting it again and again and again. I cannot see the query but I am told that they are reading from several tables trying to build a new table. Again, they've done this nightly without issue until recently. In my book, something has changed but here I am, the Sys Admin, with all fingers pointing at me as if it has something to do with the server.

Thanks again folks, for all of your help. I'll keep digging and looking into your recommendations.
 

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LEARN ABOUT DEBIAN

mod_gearman_worker

MOD_GEARMAN_WORKER(8)					  System Administration Utilities				     MOD_GEARMAN_WORKER(8)

NAME

       mod_gearman_worker - Agent that runs active checks from a gearman queue

DESCRIPTION

       usage:

       worker [ --debug=<lvl>				 ]

	      [     --logmode=<automatic|stdout|syslog|file>	 ]     [     --logfile=<path>				  ]    [    --debug-result
	      ]   [   --help|-h 				 ]   [	 --daemon|-d				    ]	[    --config=<configfile>
	      ] [ --server=<server>			   ] [ --dupserver=<server>			]

       [ --hosts
	      ]

       [ --services
	      ]

       [ --eventhandler
	      ]

       [ --hostgroup=<name>
	      ]

	      [ --servicegroup=<name> ] [ --do_hostchecks	]

       [ --min-worker=<nr>
	      ]

       [ --max-worker=<nr>
	      ]

       [ --max-age=<sec>
	      ]

       [ --timeout
	      ]

	      [ --encryption=<yes|no> ] [ --key=<string>	] [ --keyfile=<file>	  ]

       [ --min-worker=<nr>
	      ]

       [ --max-worker=<nr>
	      ]

       [ --idle-timeout=<nr>
	      ]

       [ --max-jobs=<nr>
	      ]

       [ --spawn-rate=<nr>
	      ]

       [ --fork_on_exec
	      ]

       [ --show_error_output
	      ]

       [ --enable_embedded_perl
	      ]

	      [ --use_embedded_perl_implicitly ] [ --use_perl_cache		  ] [ --p1_file 		     ]

       [ --workaround_rc_25
	      ]

       see README for a detailed explaination of all options.

SEE ALSO

       The Mod Gearman documentation is available in /usr/share/doc/mod-gearman/README.html

mod_gearman_worker 1.3.6-1					     July 2012						     MOD_GEARMAN_WORKER(8)
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