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https://issues.apache.org/jira/browse/ACCUMULO-565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265018#comment-13265018
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Keith Turner commented on ACCUMULO-565:
---------------------------------------
A new timer task was added in the TSRM. This task is throwing an excpetion and
killing the timer that a lot of tablet server task use. There is a timer task
that collects stats from tablets that is not running as a result. I added a
try/catch/log to the task and saw the following. Now that the exception is
caught, the counts are showing up.
{noformat}
30 12:41:59,598 [tabletserver.TabletServerResourceManager] WARN :
java.lang.ClassCastException:
org.apache.accumulo.cloudtrace.instrument.TraceExecutorService cannot be cast
to java.util.concurrent.ThreadPoolExecutor
java.lang.ClassCastException:
org.apache.accumulo.cloudtrace.instrument.TraceExecutorService cannot be cast
to java.util.concurrent.ThreadPoolExecutor
at
org.apache.accumulo.server.tabletserver.TabletServerResourceManager$1.run(TabletServerResourceManager.java:209)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
{noformat}
> graphs on the monitor page always read zero
> -------------------------------------------
>
> Key: ACCUMULO-565
> URL: https://issues.apache.org/jira/browse/ACCUMULO-565
> Project: Accumulo
> Issue Type: Bug
> Components: master, monitor
> Affects Versions: 1.5.0-SNAPSHOT
> Reporter: Eric Newton
> Assignee: Keith Turner
> Fix For: 1.5.0
>
>
> While testing other improvements, I noticed the top four graphs are always
> reading zero.
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