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tomscut commented on HDFS-16088: -------------------------------- Thanks [~hexiaoqiao] for your comment and thoughtful consideration. IMO FSNamesystem#getDatanodeStorageReport is OperationCategory.UNCHECKED ([HDFS-6739|https://issues.apache.org/jira/browse/HDFS-6739]), so we can request redirect to Standby on HA mode. I will add an unit test for this ASAP. > Standby NameNode process getLiveDatanodeStorageReport request to reduce > Active load > ----------------------------------------------------------------------------------- > > Key: HDFS-16088 > URL: https://issues.apache.org/jira/browse/HDFS-16088 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: tomscut > Assignee: tomscut > Priority: Minor > Labels: pull-request-available > Time Spent: 0.5h > Remaining Estimate: 0h > > As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also > request to SNN to reduce the ANN load. > There are two points that need to be mentioned: > 1. FSNamesystem#getLiveDatanodeStorageReport() is > OperationCategory.UNCHECKED, so we can access SNN directly. > 2. We can share the same UT(testBalancerRequestSBNWithHA) with > NameNodeConnector#getBlocks(). -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org