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https://issues.apache.org/jira/browse/ACCUMULO-3429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christopher Tubbs updated ACCUMULO-3429:
----------------------------------------
Fix Version/s: (was: 1.7.1)
1.7.2
> Tests leaking LRUBlockCache threads
> -----------------------------------
>
> Key: ACCUMULO-3429
> URL: https://issues.apache.org/jira/browse/ACCUMULO-3429
> Project: Accumulo
> Issue Type: Bug
> Components: test
> Reporter: Josh Elser
> Priority: Minor
> Labels: newbie
> Fix For: 1.7.2, 1.8.0
>
>
> Been having sporadic issues since upgrading past ~1.7.0_51 with SIGSEGVs on
> my Mac. Poked through the JVM error log that is created and noticed that,
> when the JVM crashed running the core/ unit tests, we had a few threads
> sitting around.
> {noformat}
> 0x00007fd0cc10e000 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=29955, stack(0x0000000119cdc000,0x0000000119ddc000)]
> 0x00007fd0cd846000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=29443, stack(0x000000011b3df000,0x000000011b4df000)]
> 0x00007fd0cc931800 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=28931, stack(0x000000011b2dc000,0x000000011b3dc000)]
> 0x00007fd0cda01000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=28419, stack(0x000000011b1d9000,0x000000011b2d9000)]
> 0x00007fd0cab91800 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=27907, stack(0x0000000119fd9000,0x000000011a0d9000)]
> 0x00007fd0ca21b000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=27395, stack(0x000000011ace4000,0x000000011ade4000)]
> 0x00007fd0ca1f2000 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=26883, stack(0x000000011abe1000,0x000000011ace1000)]
> 0x00007fd0cc983000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=26371, stack(0x0000000119bd9000,0x0000000119cd9000)]
> 0x00007fd0ca00e000 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=25859, stack(0x0000000119847000,0x0000000119947000)]
> 0x00007fd0caa91800 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=25347, stack(0x0000000119744000,0x0000000119844000)]
> 0x00007fd0caa90800 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=24835, stack(0x0000000119641000,0x0000000119741000)]
> 0x00007fd0ca9dd800 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=24323, stack(0x000000011953e000,0x000000011963e000)]
> 0x00007fd0cc085800 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=23811, stack(0x00000001193fc000,0x00000001194fc000)]
> 0x00007fd0cab88000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=23299, stack(0x00000001192bd000,0x00000001193bd000)]
> 0x00007fd0caa20800 JavaThread "LRUBlockCacheStats 1" daemon
> [_thread_blocked, id=22787, stack(0x00000001191ba000,0x00000001192ba000)]
> 0x00007fd0caa62000 JavaThread "LruBlockCache.EvictionThread" daemon
> [_thread_blocked, id=22275, stack(0x00000001190b2000,0x00000001191b2000)]
> {noformat}
> They're daemon threads which is good, but we can probably do better and make
> sure the test that starts them actually cleans them up, too. Need to identify
> the test which is causing them to be created (likely some test that does
> something with the LRUBlockCache).
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