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Steve Loughran commented on HADOOP-16044: ----------------------------------------- This is a silly question, but why is UnknownHostException being retried? Because JVMs do have a history of caching negative DNS lookup results. Looking at the latest javadocs, {{networkaddress.cache.negative.ttl}} is set to 10s, so it will eventually come up, but you do have to trust DNS to be updating its records Elsewhere i the code we're just treating this as unrecoverable. Which may not be correct action in a world of dynamicness...but if we do start changing this policy, we should think about doing it consistently everywhere (including HA failover events) > ABFS: Better exception handling of DNS errors followup > ------------------------------------------------------ > > Key: HADOOP-16044 > URL: https://issues.apache.org/jira/browse/HADOOP-16044 > Project: Hadoop Common > Issue Type: Sub-task > Reporter: Da Zhou > Assignee: Da Zhou > Priority: Major > Attachments: HADOOP-16044-001.patch, HADOOP-16044-002.patch > > > This is a follow up for HADOOP-15662 as the 001 patch of HADOOP-15662 is > already committed. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org