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<!-- keep this as a security measure: * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.LCGAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.LCGAdminGroup --> KeyWords: HostCe01, [[Maui]] ---+ MAUI blocked for 15 minutes from 11:51 to 12:06 MAUI blocked for about 15 minutes; by the time I noticed this and started to investigate, it resumed spontaneously and started scheduling jobs again. I suspected that this was another instance of the issue described in IssueMauiBlocks and in [[https://twiki.cscs.ch/twiki/bin/view/LCGTier2/OldPhoenixBlog#Upgrade_to_gLite_3_1_update_27_D an Old Phoenix Blog post]]. However, all suggested workarounds were in place: =nscd= was running fine, and the suggested timeout in the PBS config is still there. The node =ce01= is overloaded due to some intense gridftp/grid-job-monitor activity; this suggests that 15-minutes pauses are MAUI's "physiological" response to timeouts, and that we probably should not care much. We could, however, schedule Nagios checks to see if PBS and MAUI's logs are updated - if they are not modified every minute or so, something is probably going wrong. Attached is a quick perl script to find these 15-minutes pauses in MAUI logs. -- Main.RiccardoMurri - 25 Feb 2009 ---++ Readers' comments %COMMENT{type="below"}%
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find_15min_pauses_in_maui_log.pl.txt
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2009-02-25 - 12:41
RiccardoMurri
Script to find "gaps" in MAUI logs.
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Topic revision: r2 - 2009-02-27
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RiccardoMurri
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