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Important: 1) if the recovery is not enabled, simply starting and stopping the glite-wms-workload_manager process (and of course restarting after whatever kind of interruption) might cause duplicating requests. 2) the recovery only works with "JobDir" (see below) | ||||||||
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* install the two rpms, google-perftools-devel-???.rpm and google-perftools-???.rpm (just pick up the latest version, older versions should work anyway, just in case),
* enable the malloc redirection for the WM by editing the glite-wms-wm script. It is just a matter of removing the comment in the following line:
#use_google_perf_tools=1. | ||||||||
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< < | Release 08_98 of the WMS for gLite3.1/SL4. Changes with respect to the current production version (patch #1726*): | |||||||
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1) if the recovery is not enabled, simply starting and stopping the glite-wms-workload_manager process (and of course restarting after whatever kind of interruption) might cause duplicating requests. 2) the recovery only works with "JobDir" (see below) | ||||||||
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* install the two rpms, google-perftools-devel-???.rpm and google-perftools-???.rpm (just pick up the latest version, older versions should work anyway, just in case), | ||||||||
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< < | * enable the performance tools by editing the glite-wms-wm script. It is just a matter of removing the comment in the following line: #use_google_perf_tools=1. | |||||||
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#use_google_perf_tools=1. | |||||||
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This problem can be avoided using run-time redirection to whatever lock-free, optimized alternative allocator, to avoid excessive swap activity. It is highly suggested doing so wherever RAM is less than or equal to 4Gb. Here is our recipe which makes use of the TCmalloc, such an alternate allocator distributed by Google under BSD license: * install the two rpms, google-perftools-devel-???.rpm and google-perftools-???.rpm (just pick up the latest version, older versions should work anyway, just in case), | ||||||||
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< < | * enable redirection to tcmalloc with: export LD_PRELOAD="/usr/lib/libtcmalloc.so" in the glite-wms-wm script. Even if not specifically recommended (actually it may not work with everything) run-time malloc redirection has proven to get along well with the glite workload manager. | |||||||
> > | * enable the performance tools by editing the glite-wms-wm script. It is just a matter of removing the comment in the following line: #use_google_perf_tools=1. | |||||||
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