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stack resolved HBASE-2385. -------------------------- Resolution: Fixed Fix Version/s: 0.21.0 0.20.4 nm Al. I committed the below to branch and trunk. {code} Index: src/java/org/apache/hadoop/hbase/master/ServerManager.java =================================================================== --- src/java/org/apache/hadoop/hbase/master/ServerManager.java (revision 928985) +++ src/java/org/apache/hadoop/hbase/master/ServerManager.java (working copy) @@ -290,10 +290,8 @@ HServerInfo storedInfo = serversToServerInfo.get(info.getServerName()); if (storedInfo == null) { - if (LOG.isDebugEnabled()) { - LOG.debug("Received report from unknown server -- telling it " + - "to " + CALL_SERVER_STARTUP + ": " + info.getServerName()); - } + LOG.warn("Received report from unknown server -- telling it " + + "to " + CALL_SERVER_STARTUP + ": " + info.getServerName()); {code} > Debug Message "Received report from unknown server" should be INFO or WARN > -------------------------------------------------------------------------- > > Key: HBASE-2385 > URL: https://issues.apache.org/jira/browse/HBASE-2385 > Project: Hadoop HBase > Issue Type: Improvement > Components: master > Affects Versions: 0.20.3 > Environment: Debian 6 / DNS with default mdns4 > Reporter: Al Lias > Priority: Minor > Fix For: 0.20.4, 0.21.0 > > Original Estimate: 1h > Remaining Estimate: 1h > > We had debian 6 installed with a HA-DNS that failed-over. > As a result, the DNS resolution was wrong for a short moment and the master > received suddenly messages from "unknown" region servers: > 2010-03-29 12:02:56,672 DEBUG org.apache.hadoop.hbase.master.ServerManager: > Received report from unknown server -- telling it to MSG_CALL_SERVER_STARTUP: > 172.17.0.102,60020,1269856690485 > This happened in production mode: I think, it relativly critical thing that > happened, so a INFO or WARN logging level would have helped us much quicker > to figure out the reason. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.