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Konstantin Shvachko commented on HDFS-14162: -------------------------------------------- I see that {{CombinedProxyBuilder}} combines methods from multiple interfaces into a HashMap, in order to find them during invocation. Can the same be done by calling {{Proxy.newProxyInstance(ClassLoader, Class<?>[] interfaces, InvocationHandler)}} where {{interfaces = {proxy1, proxy2, proxy3}}}? I believe {{newProxyInstance()}} should do something similar internally, so we wont need custom wrappers to emulate this. > Balancer should work with ObserverNode > -------------------------------------- > > Key: HDFS-14162 > URL: https://issues.apache.org/jira/browse/HDFS-14162 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Konstantin Shvachko > Assignee: Erik Krogen > Priority: Major > Attachments: HDFS-14162-HDFS-12943.wip0.patch, HDFS-14162.000.patch, > testBalancerWithObserver.patch > > > Balancer provides a substantial RPC load on NameNode. It would be good to > divert Balancer RPCs {{getBlocks()}}, etc. to ObserverNode. The main problem > is that Balancer uses {{NamenodeProtocol}}, while ORPP currently supports > only {{ClientProtocol}}. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org