SafeMode should count only complete blocks.
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Key: HDFS-636
URL: https://issues.apache.org/jira/browse/HDFS-636
Project: Hadoop HDFS
Issue Type: Sub-task
Components: name-node
Affects Versions: Append Branch
Reporter: Konstantin Shvachko
Assignee: Konstantin Shvachko
Fix For: Append Branch
During start up the name-node is in safe mode and is counting blocks reported
by data-nodes. When the number of minimally replicated blocks reaches the
configured threshold the name-node leaves safe mode. Currently all blocks are
counted towards the threshold including the ones that are under construction.
The under-construction blocks should be excluded from the count, because they
need to be recovered, which may take long time (lease expires in 1 hour by
default). Also the recovery may result in deleting those blocks so counting
them in the blocks total is incorrect.
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