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[HDFS-408] Synthetic Load Generator for NameNode testing -- Next Generation - HDFS - [issue]
...A review of the Synthetic Load Generator identified several candidates for improvement. None are so urgent as to stand in the way of the present facility, but all are of sufficient interest ...
http://issues.apache.org/jira/browse/HDFS-408    Author: Robert Chansler, 2014-07-19, 00:36
[HDFS-130] high rate of task failures because of bad or full datanodes - HDFS - [issue]
...With 0.17 we notice a fast rate of task failures because of the same bad data nodes being reported repeatedly as badFirstLink. We never saw this in 0.16.After running less than 20,000 map ta...
http://issues.apache.org/jira/browse/HDFS-130    Author: Christian Kunz, 2014-07-19, 00:29
[HDFS-6694] TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently with various symptoms - HDFS - [issue]
...TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently with various symptoms. Typical failures are described in first comment....
http://issues.apache.org/jira/browse/HDFS-6694    Author: Yongjun Zhang, 2014-07-19, 00:08
[HDFS-220] Transparent archival and restore of files from HDFS - HDFS - [issue]
...There should be a facility to migrate old files away from a production cluster. Access to those files from applications should continue to work transparently, without changing application co...
http://issues.apache.org/jira/browse/HDFS-220    Author: dhruba borthakur, 2014-07-18, 23:45
[HDFS-232] Cross-system causal tracing within Hadoop - HDFS - [issue]
...Much of Hadoop's behavior is client-driven, with clients responsible for contacting individual datanodes to read and write data, as well as dividing up work for map and reduce tasks.  I...
http://issues.apache.org/jira/browse/HDFS-232    Author: George Porter, 2014-07-18, 23:37
[HDFS-211] Support for options within the Datanode Transfer protocol - HDFS - [issue]
...This proposal is to extend the DataNode Transfer protocol (described in DataNode.java lines 916 - 995) to support "options", in the spirit of IP or TCP options.  This should make this p...
http://issues.apache.org/jira/browse/HDFS-211    Author: George Porter, 2014-07-18, 23:25
[HDFS-401] Declare HDFS exceptions in the HDFS interface and also in class FileSystem and rethrow the encapsulated exception - HDFS - [issue]
...Server-side exceptions are encapsulated in the remote exception (as  the class name and the error string ).The client side and FileSystem does not declare or thrown the these encapsulat...
http://issues.apache.org/jira/browse/HDFS-401    Author: Sanjay Radia, 2014-07-18, 23:25
[HDFS-400] Make the Data transfer streaming protocol concrete - HDFS - [issue]
...The Data transfer between client and datanode and between datanode and datanode is a streamingprotocol where messages and data is sent across a tcp connection.The messages are not concrete d...
http://issues.apache.org/jira/browse/HDFS-400    Author: Sanjay Radia, 2014-07-18, 23:24
[HDFS-379] Cleanup and Document HDFS Client Intefaces and Protocol - HDFS - [issue]
...Cleanup and Document HDFS Client Intefaces and ProtocolThe HDFS Client Interface/Protocols are Client to Namenode RPC protocol Client to Datanode RPC protocol Client to Datanode Streaming pr...
http://issues.apache.org/jira/browse/HDFS-379    Author: Sanjay Radia, 2014-07-18, 23:24
[HDFS-349] SecondaryNameNode could include the hostname/port in socket connect failures for better diagnostics - HDFS - [issue]
...reported on the user mailing list. when the Secondary name node can't connect to the default filesystem, it passes up the JVM error, which of course omits useful information such as the host...
http://issues.apache.org/jira/browse/HDFS-349    Author: Steve Loughran, 2014-07-18, 23:24
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