hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Allan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17673) Monitored RPC Handler not show in the WebUI
Date Tue, 21 Feb 2017 04:10:44 GMT
Allan Yang created HBASE-17673:

             Summary: Monitored RPC Handler not show in the WebUI
                 Key: HBASE-17673
                 URL: https://issues.apache.org/jira/browse/HBASE-17673
             Project: HBase
          Issue Type: Bug
    Affects Versions: 1.1.8, 1.2.4, 2.0.0, 3.0.0
            Reporter: Allan Yang
            Assignee: Allan Yang
            Priority: Minor

This issue has been fixed once in HBASE-14674. But, I noticed that almost all RS in our production
environment still have this problem. Strange thing is that newly started servers seems do
not affected. Digging for a while, then I realize the {{CircularFifoBuffer}} introduced by
HBASE-10312 is the root cause. The RPC hander's monitoredTask only create once, if the server
is flooded with tasks, RPC monitoredTask can be purged by CircularFifoBuffer, and then never
visible in WebUI.
So my solution is create a list for RPC monitoredTask sepreately. It is OK to do so since
the RPC handlers remain in a fixed number. It won't increase or decrease during the lifetime
of the server.

This message was sent by Atlassian JIRA

View raw message