[ https://issues.apache.org/jira/browse/HDFS-16831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ZanderXu resolved HDFS-16831. ----------------------------- Fix Version/s: 3.4.0 Hadoop Flags: Reviewed Resolution: Fixed > [RBF SBN] GetNamenodesForNameserviceId should shuffle Observer NameNodes > every time > ----------------------------------------------------------------------------------- > > Key: HDFS-16831 > URL: https://issues.apache.org/jira/browse/HDFS-16831 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: ZanderXu > Assignee: ZanderXu > Priority: Major > Labels: pull-request-available > Fix For: 3.4.0 > > > The method getNamenodesForNameserviceId in MembershipNamenodeResolver.class > should shuffle Observer NameNodes every time. The current logic will return > the cached list and will caused all of read requests are forwarding to the > first observer namenode. > > The related code as bellow: > {code:java} > @Override > public List<? extends FederationNamenodeContext> getNamenodesForNameserviceId( > final String nsId, boolean listObserversFirst) throws IOException { > List<? extends FederationNamenodeContext> ret = cacheNS.get(Pair.of(nsId, > listObserversFirst)); > if (ret != null) { > return ret; > } > ... > }{code} -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org