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[HDFS-3937] The BlockManager should not use the FSN lock - HDFS - [issue]
...Like HDFS-2206 but for the BM. The BM currently calls into the FSN to acquire it's write lock, it looks like this is only needed for synchronization of it's local structures, in which case i...
http://issues.apache.org/jira/browse/HDFS-3937    Author: Eli Collins, 2014-11-13, 22:20
[HDFS-3907] Allow multiple users for local block readers - HDFS - [issue]
...The dfs.block.local-path-access.user config added in HDFS-2246 only supports a single user, however as long as blocks are group readable by more than one user the feature could be used by mu...
http://issues.apache.org/jira/browse/HDFS-3907    Author: Eli Collins, 2014-08-15, 10:15
[HDFS-2062] Create Jenkins job for HDFS native code - HDFS - [issue]
...The libhdfs test does not currently run as part of the pre-commit Hudson job. It should as libhdfs is not contrib. The command to run is: ant -Dlibhdfs=true compile test. We just need to mak...
http://issues.apache.org/jira/browse/HDFS-2062    Author: Eli Collins, 2014-07-31, 18:51
[HDFS-1026] Quota checks fail for small files and quotas - HDFS - [issue]
...If a directory has a quota less than blockSize * numReplicas then you can't add a file to it, even if the file size is less than the quota. This is because FSDirectory#addBlock updates the c...
http://issues.apache.org/jira/browse/HDFS-1026    Author: Eli Collins, 2014-07-30, 00:52
[HDFS-929] DFSClient#getBlockSize is unused - HDFS - [issue]
...DFSClient#getBlockSize is unused. Since it's a public class internal to HDFS we just remove it? If not then we should add a unit test....
http://issues.apache.org/jira/browse/HDFS-929    Author: Eli Collins, 2014-07-29, 23:59
[HDFS-903] NN should verify images and edit logs on startup - HDFS - [issue]
...I was playing around with corrupting fsimage and edits logs when there are multiple dfs.name.dirs specified. I noticed that: As long as your corruption does not make the image invalid, eg ch...
http://issues.apache.org/jira/browse/HDFS-903    Author: Eli Collins, 2014-07-19, 01:02
[HDFS-2639] A client may fail during block recovery even if its request to recover a block succeeds - HDFS - [issue]
...The client gets stuck in the following loop if an rpc its issued to recover a block timed out:DataStreamer#run1.  processDatanodeError2.     DN#recoverBlock3.     &n...
http://issues.apache.org/jira/browse/HDFS-2639    Author: Eli Collins, 2014-07-16, 10:12
[HDFS-3150] Add option for clients to contact DNs via hostname - HDFS - [issue]
...The DN listens on multiple IP addresses (the default dfs.datanode.address is the wildcard) however per HADOOP-6867 only the source address (IP) of the registration is given to clients. HADOO...
http://issues.apache.org/jira/browse/HDFS-3150    Author: Eli Collins, 2014-04-24, 23:12
[HDFS-4114] Remove the BackupNode and CheckpointNode from trunk - HDFS - [issue]
...Per the thread on hdfs-dev@ (http://s.apache.org/tMT) let's remove the BackupNode and CheckpointNode....
http://issues.apache.org/jira/browse/HDFS-4114    Author: Eli Collins, 2014-04-23, 08:01
[HDFS-3128] Unit tests should not use a test root in /tmp - HDFS - [issue]
...Saw this on jenkins, TestResolveHdfsSymlink#testFcResolveAfs creates /tmp/alpha which interferes with other executors on the same machine....
http://issues.apache.org/jira/browse/HDFS-3128    Author: Eli Collins, 2014-04-11, 19:18
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB