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[HDFS-5358] Add replication field to PathBasedCacheDirective - HDFS - [issue]
...Add a 'replication' field to PathBasedCacheDirective, so that administrators can configure how many cached replicas of a block the cluster should try to maintain....
http://issues.apache.org/jira/browse/HDFS-5358    Author: Colin Patrick McCabe, 2013-10-17, 00:12
[HDFS-5359] Allow LightWeightGSet#Iterator to remove elements - HDFS - [issue]
...Small modification to GSet#Iterator so that it can remove elements....
http://issues.apache.org/jira/browse/HDFS-5359    Author: Colin Patrick McCabe, 2013-10-15, 01:20
[HDFS-5349] DNA_CACHE and DNA_UNCACHE should be by blockId only - HDFS - [issue]
...DNA_CACHE and DNA_UNCACHE should be by blockId only.  We don't need length and genstamp to know what the NN asked us to cache....
http://issues.apache.org/jira/browse/HDFS-5349    Author: Colin Patrick McCabe, 2013-10-14, 23:19
[HDFS-5348] Fix error message when dfs.datanode.max.locked.memory is improperly configured - HDFS - [issue]
...We need to fix the error message when dfs.datanode.max.locked.memory is improperly configured.  Currently it says the size is "less than the datanode's available RLIMIT_MEMLOCK limit" w...
http://issues.apache.org/jira/browse/HDFS-5348    Author: Colin Patrick McCabe, 2013-10-14, 21:07
[HDFS-5323] Remove some deadcode in BlockManager - HDFS - [issue]
...BlockManager#DEFAULT_MAP_LOAD_FACTOR is deadcode.  It no longer does anything since blocks are now stored in a GSet whose size is fixed.BlocksMap#blocks does not need to be volatile. &n...
http://issues.apache.org/jira/browse/HDFS-5323    Author: Colin Patrick McCabe, 2013-10-10, 15:19
[HDFS-5314] Do not expose CachePool type in AddCachePoolOp - HDFS - [issue]
...CachePool is an internal type which should not be exposed or used in the FSEditLog.  Because CachePool is mutable, storing a reference to it in an edit log operation could lead to the e...
http://issues.apache.org/jira/browse/HDFS-5314    Author: Colin Patrick McCabe, 2013-10-07, 23:10
[HDFS-5119] Persist CacheManager state in the edit log - HDFS - [issue]
...CacheManager state should be persisted in the edit log.  At the moment, this state consists of information about cache pools and cache directives.  It's not necessary to persist an...
http://issues.apache.org/jira/browse/HDFS-5119    Author: Colin Patrick McCabe, 2013-10-06, 23:22
[HDFS-5190] Move cache pool related CLI commands to CacheAdmin - HDFS - [issue]
...As per the discussion in HDFS-5158, we should move the cache pool add, remove, list commands into cacheadmin.  We also should write a unit test in TestHDFSCLI for these commands....
http://issues.apache.org/jira/browse/HDFS-5190    Author: Colin Patrick McCabe, 2013-10-04, 23:28
[HDFS-5191] revisit zero-copy API in FSDataInputStream to make it more intuitive - HDFS - [issue]
...As per the discussion on HDFS-4953, we should revisit the zero-copy API to make it more intuitive for new users....
http://issues.apache.org/jira/browse/HDFS-5191    Author: Colin Patrick McCabe, 2013-09-26, 21:35
[HDFS-4521] invalid network topologies should not be cached - HDFS - [issue]
...When the network topology is invalid, the DataNode refuses to start with a message such as this:org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.registerDatanode from 172.29.122.23:55...
http://issues.apache.org/jira/browse/HDFS-4521    Author: Colin Patrick McCabe, 2013-09-24, 08:51
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