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Andres Perez commented on HDFS-8307: ------------------------------------ [~anu] [~brahmareddy] can you please review the patch and provide any feedback? > Spurious DNS Queries from hdfs shell > ------------------------------------ > > Key: HDFS-8307 > URL: https://issues.apache.org/jira/browse/HDFS-8307 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Affects Versions: 2.7.1 > Reporter: Anu Engineer > Assignee: Andres Perez > Priority: Trivial > Labels: ha > Fix For: 2.7.4 > > Attachments: HDFS-8307-branch-2.7.patch > > > With HA configured the hdfs shell (org.apache.hadoop.fs.FsShell) seems to > issue a DNS query for the cluster Name. if fs.defaultFS is set to > hdfs://mycluster, then the shell seems to issue a DNS query for > mycluster.FQDN or mycluster. > since mycluster not a machine name DNS query always fails with > "DNS 85 Standard query response 0x2aeb No such name" > Repro Steps: > # Setup a HA cluster > # Log on to any node > # Run wireshark monitoring port 53 - "sudo tshark 'port 53'" > # Run "sudo -u hdfs hdfs dfs -ls /" > # You should be able to see DNS queries to mycluster.FQDN in wireshark -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org