hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1679) Flapping DNS does us more harm than it need to
Date Tue, 21 Jul 2009 21:43:14 GMT
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.

View raw message