Flapping DNS does us more harm than it need to
----------------------------------------------
Key: HBASE-1679
URL: https://issues.apache.org/jira/browse/HBASE-1679
Project: Hadoop HBase
Issue Type: Bug
Reporter: stack
Over in HBASE-1675, JSharp has posted logs where a temporary DNS outage does
his cluster a death blow.
When cluster members report in, the master composes the regionserver name by
doing a hostname lookup and appending it to port and startcode passed over by
the regionserver. The host lookup during a DNS outage when from name to IP.
Master then thought this regionserver an unknown host and told it restart....
and so on.
If the regionserver composed its name once, it could pass this the master and
avoid a DNS lookup per regionserver report.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
