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Colin Patrick McCabe
Tsz Wo Nicholas Sze
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Brahma Reddy Battula
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[HDFS-5423] Verify initializations of LocatedBlock/RecoveringBlock
...Tracking Jira to make sure we verify initialization of LocatedBlock and RecoveringBlock, possibly reorg the constructors to make missing initialization of StorageIDs less likely....
, 2015-01-21, 19:53
[HDFS-5153] Datanode should send block reports for each storage in a separate message
...When the number of blocks on the DataNode grows large we start running into a few issues: Block reports take a long time to process on the NameNode. In testing we have seen that a block repo...
, 2015-01-08, 23:35
[HDFS-7572] TestLazyPersistFiles#testDnRestartWithSavedReplicas is flaky on Windows
...Error MessageExpected: is <DISK> but: was <RAM_DISK>Stacktracejava.lang.AssertionError: Expected: is <DISK> but: was <RAM_DISK> ...
, 2015-01-06, 21:12
[HDFS-7514] TestTextCommand fails on Windows
...TestTextCommand fails on WindowsError MessagePathname /D:/w/hbk/hadoop-hdfs-project/hadoop-hdfs/target/test/data/testText/weather.avro from D:/w/hbk/hadoop-hdfs-project/hadoop-hdfs/target/te...
, 2014-12-13, 15:25
[HDFS-5960] Fix TestRollingUpgrade
...TestRollingUpgrade fails when restarting the NN because OP_ROLLING_UPGRADE_START and OP_ROLLING_UPGRADE_FINALIZE are not expected.The fix is to start/finalize rolling upgrade when the corres...
, 2014-12-05, 02:13
[HDFS-4961] BlockId and Generation Stamp code should be moved to the blockmanagement package
...While reviewing the fix for HDFS-4645, Nicholas mentioned The block id and generation stamp code actually should be moved to the blockmanagement package. See if you want to move...
, 2014-11-13, 21:51
[HDFS-7093] Add config key to restrict setStoragePolicy
...Currently we do not allow unprivileged users to set the storage policy on a directory. This Jira proposes removing this restriction....
, 2014-11-01, 23:53
[HDFS-6988] Add configurable limit for percentage-based eviction threshold
...Per feedback from Colin Patrick McCabe on HDFS-6930, we can make the eviction thresholds configurable. The hard-coded thresholds may not be appropriate for very large RAM disks....
, 2014-10-23, 03:00
[HDFS-7112] LazyWriter should use either async IO or one thread per physical disk
...The LazyWriter currently uses synchronous IO and a single thread. This limits the throughput to that of a single disk. Using either async overlapped IO or one thread per physical disk will i...
, 2014-10-18, 03:05
[HDFS-7090] Use unbuffered writes when persisting in-memory replicas
...The LazyWriter thread just uses FileUtils.copyFile to copy block files to persistent storage. It would be better to use unbuffered writes to avoid churning page cache....
, 2014-10-18, 03:04
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