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Posted to notifications@accumulo.apache.org by "Josh Elser (JIRA)" <ji...@apache.org> on 2014/11/19 21:33:33 UTC
[jira] [Created] (ACCUMULO-3346) ActiveScans on monitor page not
showing a scan
Josh Elser created ACCUMULO-3346:
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Summary: ActiveScans on monitor page not showing a scan
Key: ACCUMULO-3346
URL: https://issues.apache.org/jira/browse/ACCUMULO-3346
Project: Accumulo
Issue Type: Bug
Components: monitor, tserver
Affects Versions: 1.6.1
Reporter: Josh Elser
Fix For: 1.6.2, 1.7.0
Seeing this in the tserver jstack:
{noformat}
"User: root Start: 1416425236658 Client: 127.0.0.1:49462 Tablet: 250<<" daemon prio=5 tid=0x00007f80c692f800 nid=0xe40b waiting on condition [0x000000011d369000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.accumulo.core.util.UtilWaitThread.sleep(UtilWaitThread.java:26)
at org.apache.accumulo.test.functional.SlowIterator.seek(SlowIterator.java:62)
at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:121)
- locked <0x00000007a66adeb8> (a org.apache.accumulo.core.iterators.system.SourceSwitchingIterator)
at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:167)
- locked <0x00000007a66adeb8> (a org.apache.accumulo.core.iterators.system.SourceSwitchingIterator)
at org.apache.accumulo.tserver.Tablet.nextBatch(Tablet.java:1659)
at org.apache.accumulo.tserver.Tablet.access$3200(Tablet.java:174)
at org.apache.accumulo.tserver.Tablet$Scanner.read(Tablet.java:1801)
- locked <0x00000007a4dc4528> (a org.apache.accumulo.tserver.Tablet$Scanner)
at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$NextBatchTask.run(TabletServer.java:1042)
at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
at java.lang.Thread.run(Thread.java:745)
Locked ownable synchronizers:
- <0x00000007a5d362f0> (a java.util.concurrent.ThreadPoolExecutor$Worker)
{noformat}
It's a bit confusing. I know there is a scan active because the table in question is being blocked from deletion (due to a purposefully long-running scan with SlowIterator). However, it appears incorrect that the monitor is reporting no active scans.
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