[jira] [Created] (HBASE-19834) Signalling server-hosted-clients to abort retries

["stack (JIRA)" <ji...@apache.org>]

stack created HBASE-19834:
-----------------------------

             Summary: Signalling server-hosted-clients to abort retries
                 Key: HBASE-19834
                 URL: https://issues.apache.org/jira/browse/HBASE-19834
             Project: HBase
          Issue Type: Sub-task
            Reporter: stack
             Fix For: 2.0.0-beta-2


A few recent flakey tests have been variations on the server-hosted-client retrying against a server or region that is never going to show up -- usually because cluster is being shutdown. One example is client stuck, retrying to update hbase:meta with change in region or table state but hbase:meta is down. Another is HBASE-19794 where the test hangs because backup Master is trying to become active and as part of the startup, it is trying to read table state from hbase:meta but hbase:meta is not available; it has been put down as part of the cluster shutdown.

One difficulty is that the master thread can get hung up by the client retries; it is no longer available to receive shutdown or other event types (e.g. see HBASE-19794). Some of our startup needs to be refactored moved into our run method rather than done as some big single-threaded startup as happens now in Master.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)