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Type:
Improvement
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 2.7.3
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Fix Version/s: 2.9.0, 2.7.4, 3.0.0-alpha4, 2.8.2
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Component/s: balancer & mover
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Labels:None
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Target Version/s:
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Hadoop Flags:Reviewed
When running balancer on hadoop cluster which have more than 3000 Datanodes will cause NameNode's rpc.CallQueueLength spike. We observed this situation could cause Hbase cluster failure due to RegionServer's WAL timeout.
- breaks
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HDFS-12347 TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently
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- Resolved
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HDFS-14973 Balancer getBlocks RPC dispersal does not function properly
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- Resolved
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- is related to
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HDFS-8825 Enhancements to Balancer
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- Open
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