Lukas Majercak created HDFS-11288: ------------------------------------- Summary: Manually allow block replication/deletion in Safe Mode Key: HDFS-11288 URL: https://issues.apache.org/jira/browse/HDFS-11288 Project: Hadoop HDFS Issue Type: New Feature Components: namenode Affects Versions: 3.0.0-alpha1 Reporter: Lukas Majercak
Currently, the Safe Mode does not allow block replication/deletion, which makes sense, especially on startup, as we do not want to replicate blocks unnecessarily. An issue we have seen in our clusters though, is when the NameNode is getting overwhelmed with the amounts of needed replications; in which case, we would like to be able to manually set the NN to be in a state in which R/Ws to FS are disallowed but the NN continues replicating/deleting blocks. -- 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