Yongjun Zhang created HDFS-10887: ------------------------------------ Summary: Provide admin/debug tool to dump block map Key: HDFS-10887 URL: https://issues.apache.org/jira/browse/HDFS-10887 Project: Hadoop HDFS Issue Type: Bug Components: hdfs, namenode Reporter: Yongjun Zhang Assignee: Yongjun Zhang
>From time to time, when NN restarts, we see {code} "The reported blocks X needs additional Y blocks to reach the threshold 0.9990 of total blocks Z. Safe mode will be turned off automatically. {code} We'd wonder what these blocks that still need block reports are, and what DNs they could possibly be located, what happened to these DNs. This jira to to propose a new admin or debug tool to dump the block map info with the blocks that have fewer than minRepl replicas. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org