[ https://issues.apache.org/jira/browse/HDFS-16845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Owen O'Malley resolved HDFS-16845. ---------------------------------- Fix Version/s: 3.4.0 3.3.5 2.10.3 Resolution: Fixed I just committed this. Thanks, Simba! > Add configuration flag to enable observer reads on routers without using > ObserverReadProxyProvider > -------------------------------------------------------------------------------------------------- > > Key: HDFS-16845 > URL: https://issues.apache.org/jira/browse/HDFS-16845 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Simbarashe Dzinamarira > Assignee: Simbarashe Dzinamarira > Priority: Critical > Labels: pull-request-available > Fix For: 3.4.0, 3.3.5, 2.10.3 > > > In order for clients to have routers forward their reads to observers, the > clients must use a proxy with an alignment context. This is currently > achieved by using the ObserverReadProxyProvider. > Using ObserverReadProxyProvider allows backward compatible for client > configurations. > However, the ObserverReadProxyProvider forces an msync on initialization > which is not required with routers. > Performing msync calls is more expensive with routers because the router fans > out the cal to all namespaces, so we'd like to avoid this. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org