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https://issues.apache.org/jira/browse/SENTRY-634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14301820#comment-14301820
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Anne Yu commented on SENTRY-634:
--------------------------------
We found from a testing that, if number of connection is more than 500, Sentry
service starts to reject requests. It would be interesting to see how salable
the Sentry service is, by setting up the service on a standard production
server, for example, (4CPU, 16GRAM).
> Scability Test: create > 500 connections, even more, to see if sentry service
> can handle client requests
> --------------------------------------------------------------------------------------------------------
>
> Key: SENTRY-634
> URL: https://issues.apache.org/jira/browse/SENTRY-634
> Project: Sentry
> Issue Type: Test
> Affects Versions: 1.4.0
> Reporter: Anne Yu
> Fix For: 1.4.0
>
>
> 539 2015-01-28 08:10:00,031 WARN
> sentry.org.apache.thrift.server.TThreadPoolServer: ExecutorService rejected
> client 1009 times(s) 27540 java.util.concurrent.RejectedExecutionException:
> Task sentry.org.apache.thrift.server.TThreadPoolServer$WorkerProcess@30e8e6ab
> rejected from java.util.concurrent.ThreadPoolExecutor@73451032[Running, pool
> size = 500, active threads = 500, queued tasks = 0, completed tasks = 365]
> 27541 at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047)
> 27542 at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:83)
> 27543 at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1369)
> 27544 at
> sentry.org.apache.thrift.server.TThreadPoolServer.serve(TThreadPoolServer.java:136)
> 27545 at
> org.apache.sentry.service.thrift.SentryService.runServer(SentryService.java:232)
> 27546 at
> org.apache.sentry.service.thrift.SentryService.access$000(SentryService.java:72)
> 27547 at
> org.apache.sentry.service.thrift.SentryService$2.run(SentryService.java:159)
> 27548 at
> org.apache.sentry.service.thrift.SentryService$2.run(SentryService.java:156)
> 27549 at java.security.AccessController.doPrivileged(Native Method)
> 27550 at javax.security.auth.Subject.doAs(Subject.java:422)
> 27551 at
> org.apache.sentry.service.thrift.SentryService.call(SentryService.java:156)
> 27552 at
> org.apache.sentry.service.thrift.SentryService.call(SentryService.java:72)
> 27553 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 27554 at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 27555 at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 27556 at java.lang.Thread.run(Thread.java:745)
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