Vinod Kumar Vavilapalli
Arun C Murthy
Colin Patrick McCabe
Aaron T. Myers
Brahma Reddy Battula
Tsz Wo Nicholas Sze
Uma Maheswara Rao G
Krishna Kishore Bonagiri
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[HDFS-7596] NameNode should prune dead storages from storageMap
...The NameNode must be able to prune storages that are no longer reported by the DataNode and that have no blocks associated. These stale storages can skew the balancer behavior.Detailed discu...
, 2015-08-31, 19:37
[HDFS-5851] Support memory as a storage medium
...Memory can be used as a storage medium for smaller/transient files for fast write throughput.More information/design will be added later....
, 2015-08-25, 08:07
[HDFS-7649] Multihoming docs should emphasize using hostnames in configurations
...The docs should emphasize that master and slave configurations should hostnames wherever possible.Link to current docs: https://hadoop.apache.org/docs/r2.6.0/hadoop-project-dist/hadoop-hdfs/...
, 2015-08-14, 21:22
[HDFS-8856] Make LeaseManager#countPath O(1)
...LeaseManager#countPath loops over all existing lease holders to compute the pending lease count. We can just track the pending leased files so it runs in constant time....
, 2015-08-07, 15:33
[HDFS-7192] DN should ignore lazyPersist hint if the writer is not local
...The DN should ignore allowLazyPersist hint to DataTransferProtocol#writeBlock if the writer is not local.Currently we don't restrict memory writes to local clients. For in-cluster clients th...
, 2015-07-31, 16:47
[HDFS-6931] Move lazily persisted replicas to finalized directory on DN startup
...On restart the DN should move replicas from the current/lazyPersist/ directory to current/finalized. Duplicate replicas of the same block should be deleted from RAM disk....
, 2015-07-20, 17:59
[HDFS-8778] TestBlockReportRateLimiting#testLeaseExpiration can deadlock
...requestBlockReportLease blocks on DataNode registration while holding the NameSystem read lock.DataNode registration can block on the NameSystem read lock if a writer gets in the queue....
, 2015-07-17, 14:09
[HDFS-7733] NFS: readdir/readdirplus return null directory attribute on failure
...NFS readdir and readdirplus operations return a null directory attribute on some failure paths. This causes clients to get a 'Stale file handle' error which can only be fixed by unmounting a...
, 2015-07-16, 02:06
[VOTE] Release Apache Hadoop 2.7.1 RC0
- [mail # dev]
...Vinod, thanks for putting together this release.+1 (binding) - Verified signatures - Installed binary release on Centos 6 pseudo cluster * Copied files in and out of H...
, 2015-07-01, 23:50
[HDFS-8345] Storage policy APIs must be exposed via the FileSystem interface
...The storage policy APIs are not exposed via FileSystem. Since DistributedFileSystem is tagged as LimitedPrivate we should expose the APIs through FileSystem for use by other applications....
, 2015-06-30, 23:35
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