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yunjiong zhao commented on HDFS-9959: ------------------------------------- For other logs, it is not that convenient. For example, if the block was created years ago, we may not find anything in recent BlockStateChange log. For performance penalty, I think it should be fine because it won't generate lots of new message. > add log when block removed from last live datanode > -------------------------------------------------- > > Key: HDFS-9959 > URL: https://issues.apache.org/jira/browse/HDFS-9959 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: yunjiong zhao > Assignee: yunjiong zhao > Priority: Minor > Attachments: HDFS-9959.patch > > > Add logs like "BLOCK* No live nodes contain block blk_1073741825_1001, last > datanode contain it is node: 127.0.0.1:65341" in BlockStateChange should help > to identify which datanode should be fixed first to recover missing blocks. -- This message was sent by Atlassian JIRA (v6.3.4#6332)