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Posted to issues@hbase.apache.org by "Guangxu Cheng (JIRA)" <ji...@apache.org> on 2017/09/26 12:36:00 UTC
[jira] [Updated] (HBASE-18880) Failed to start rest server if the
value of hbase.rest.threads.max is too small.
[ https://issues.apache.org/jira/browse/HBASE-18880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Guangxu Cheng updated HBASE-18880:
----------------------------------
Affects Version/s: 2.0.0-alpha-4
3.0.0
> Failed to start rest server if the value of hbase.rest.threads.max is too small.
> --------------------------------------------------------------------------------
>
> Key: HBASE-18880
> URL: https://issues.apache.org/jira/browse/HBASE-18880
> Project: HBase
> Issue Type: Bug
> Components: REST
> Affects Versions: 3.0.0, 2.0.0-alpha-4
> Reporter: Guangxu Cheng
> Assignee: Guangxu Cheng
> Fix For: 3.0.0, 2.0.0-alpha-4
>
>
> After HBASE-18224, Jetty has be updated to 9.4.6, and it requires more threads to start up.
> If the value of hbase.rest.threads.max is too small, the rest server will fail to start.
> What I observed was as follows:
> 1. The process did not exit. (At the beginning, I thought the rest server has been start normally because of the process exists.)
> 2. Can't connect to the rest server and I didn't found any exception log in ***.log.
> 3. the main thread has exited (jstack log).
> 4. Found the exception information from ***.out.
> {code}
> java.lang.IllegalStateException: Insufficient threads: max=5 < needed(acceptors=1 + selectors=8 + request=1)
> at org.eclipse.jetty.server.Server.doStart(Server.java:414)
> at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
> at org.apache.hadoop.hbase.rest.RESTServer.main(RESTServer.java:360)
> {code}
> I think the process should exit and log the information in ***.log when it happens.
> So that the user can directly discover that the rest server is abnormal.
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