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Hadoop HDFS
HDFS-6581 Write to single replica in memory
HDFS-6926
DN support for saving replicas to persistent storage and evicting in-memory replicas
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Details
Type:
Sub-task
Status:
Closed
Priority:
Major
Resolution:
Fixed
Affects Version/s:
HDFS-6581
Fix Version/s:
2.6.0
Component/s:
datanode
Labels:
None
Hadoop Flags:
Reviewed
Description
Add the following:
A lazy writer on the DN to move replicas from RAM disk to persistent storage.
'Evict' persisted replicas from RAM disk to make space for new blocks.
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HDFS-6926.01.patch
23/Aug/14 20:50
39 kB
Arpit Agarwal
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Assignee:
Arpit Agarwal
Reporter:
Arpit Agarwal
Votes:
0
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Watchers:
4
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Dates
Created:
23/Aug/14 20:29
Updated:
01/Dec/14 03:09
Resolved:
27/Aug/14 22:52