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From Philippe <watche...@gmail.com>
Subject GC for ParNew on 0.8.6
Date Mon, 26 Sep 2011 19:26:04 GMT
Ever since upgrading to 0.8.6, my nodes' system.log is littered with
GCInspector logs such as these
INFO [ScheduledTasks:1] 2011-09-26 21:23:40,468 GCInspector.java (line 122)
GC for ParNew: 209 ms for 1 collections, 4747932608 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:23:43,788 GCInspector.java (line 122)
GC for ParNew: 218 ms for 1 collections, 4963170032 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:23:55,893 GCInspector.java (line 122)
GC for ParNew: 471 ms for 2 collections, 5564471992 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:23:57,095 GCInspector.java (line 122)
GC for ParNew: 569 ms for 2 collections, 5635053360 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:23:58,096 GCInspector.java (line 122)
GC for ParNew: 234 ms for 1 collections, 6101724672 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:23:59,129 GCInspector.java (line 122)
GC for ParNew: 573 ms for 2 collections, 5933842376 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:24:00,130 GCInspector.java (line 122)
GC for ParNew: 295 ms for 1 collections, 6289652528 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:24:01,331 GCInspector.java (line 122)
GC for ParNew: 490 ms for 2 collections, 6183013200 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:24:02,333 GCInspector.java (line 122)
GC for ParNew: 207 ms for 1 collections, 6350919632 used; max is 16838033408
 INFO [ScheduledTasks:1] 2011-09-26 21:24:09,464 GCInspector.java (line 122)
GC for ParNew: 440 ms for 2 collections, 6824630136 used; max is 16838033408


I have changed absolutely nothing and the work load is perhaps even lower
than before upgrading because I have paused most updates to the cluster. Did
a log level change or does this have deeper meaning ?

Thanks

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