unresponsive namenode because of not finding places to replicate
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Key: HADOOP-1988
URL: https://issues.apache.org/jira/browse/HADOOP-1988
Project: Hadoop
Issue Type: Bug
Components: dfs
Affects Versions: 0.15.0
Reporter: Christian Kunz
We have a 80 node cluster where many nodes started to fail such it went down to
59 live nodes. Originally we had our set of applications 60 times replicated.
The cluster size went below the required replication number, and started to
become increasingly less responsive, spewing out the following messages at a
high rate:
WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas,
still in need of 2
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