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[HDFS-4309] Multithreaded get through the Cache FileSystem Object to lead LeaseChecker memory leak - HDFS - [issue]
...If multiple threads concurrently execute the following methods will result in the thread fs = createFileSystem (uri, conf) method is called.And create multiple DFSClient, start at the same t...
http://issues.apache.org/jira/browse/HDFS-4309    Author: WenJin Ma, 2015-05-02, 10:56
[HDFS-4101] ZKFC should implement zookeeper.recovery.retry like HBase to connect to ZooKeeper - HDFS - [issue]
...When zkfc start and zookeeper is not yet started ZKFC fails and stop directly.Maybe ZKFC should allow some retries on Zookeeper services like does HBase with zookeeper.recovery.retryThis par...
http://issues.apache.org/jira/browse/HDFS-4101    Author: Damien Hardy, 2015-05-02, 09:55
[HDFS-7401] Add block info to DFSInputStream' WARN message when it adds node to deadNodes - HDFS - [issue]
...Block info is missing in the below message2014-11-14 03:59:00,386 WARN org.apache.hadoop.hdfs.DFSClient: Failed to connect to /xx.xx.xx.xxx:50010 for block, add to deadNodes and continue. ja...
http://issues.apache.org/jira/browse/HDFS-7401    Author: Ming Ma, 2015-05-02, 06:12
[HDFS-7265] Use a throttler for replica write in datanode - HDFS - [issue]
...BlockReceiver process packets in BlockReceiver.receivePacket() as follows read from socket enqueue the ack write to downstream write to diskThe above steps is repeated for each packet in a s...
http://issues.apache.org/jira/browse/HDFS-7265    Author: Tsz Wo Nicholas Sze, 2015-05-02, 06:12
[HDFS-6980] TestWebHdfsFileSystemContract fails in trunk - HDFS - [issue]
...Many tests in TestWebHdfsFileSystemContract fail by "too many open files" error....
http://issues.apache.org/jira/browse/HDFS-6980    Author: Akira AJISAKA, 2015-05-02, 06:11
[HDFS-7174] Support for more efficient large directories - HDFS - [issue]
...When the number of children under a directory grows very large, insertion becomes very costly.  E.g. creating 1M entries takes 10s of minutes.  This is because the complexity of an...
http://issues.apache.org/jira/browse/HDFS-7174    Author: Kihwal Lee, 2015-05-02, 06:11
[HDFS-7264] Tha last datanode in a pipeline should send a heartbeat when there is no traffic - HDFS - [issue]
...When the client is writing slowly, the client will send a heartbeat to signal that the connection is still alive.  This case works fine.However, when a client is writing fast but some o...
http://issues.apache.org/jira/browse/HDFS-7264    Author: Tsz Wo Nicholas Sze, 2015-05-02, 06:11
[HDFS-7485] Avoid string operations in FSPermissionChecker - HDFS - [issue]
...Currently FSPermissionChecker compares strings when testing users and groups. It should compare the id assigned by SerialNumberManager....
http://issues.apache.org/jira/browse/HDFS-7485    Author: Haohui Mai, 2015-05-02, 06:11
[HDFS-5952] Create a tool to run data analysis on the PB format fsimage - HDFS - [issue]
...Delimited processor in OfflineImageViewer is not supported after HDFS-5698 was merged.The motivation of delimited processor is to run data analysis on the fsimage, therefore, there might be ...
http://issues.apache.org/jira/browse/HDFS-5952    Author: Akira AJISAKA, 2015-05-02, 06:11
[HDFS-5757] refreshNodes with many nodes at the same time could slow down NN - HDFS - [issue]
...Sometimes we need to decomm a whole rack of nodes at the same time. When the decomm is in process; NN is slow.The reason is when DecommissionManager checks the decomm status, it acquires nam...
http://issues.apache.org/jira/browse/HDFS-5757    Author: Ming Ma, 2015-05-02, 06:11
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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