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[HADOOP-9045] In nodegroup-aware case, make sure nodes are avoided to place replica if some replica are already under the same nodegroup - Hadoop - [issue]
...In previous implementation for HADOOP-8468, 3rd replica is avoid to place on the same nodegroup of 2nd replica. But it didn't provide check on nodegroup of 1st replica, so if 2nd replica's r...
http://issues.apache.org/jira/browse/HADOOP-9045    Author: Junping Du, 2012-11-28, 07:22
[HADOOP-8372] normalizeHostName() in NetUtils is not working properly in resolving a hostname start with numeric character - Hadoop - [issue]
...A valid host name can start with numeric value (You can refer RFC952, RFC1123 or http://www.zytrax.com/books/dns/apa/names.html), so it is possible in a production environment, user name the...
http://issues.apache.org/jira/browse/HADOOP-8372    Author: Junping Du, 2012-11-27, 01:57
[HADOOP-8820] Backport HADOOP-8469 and HADOOP-8470: add "NodeGroup" layer in new NetworkTopology (also known as NetworkTopologyWithNodeGroup) - Hadoop - [issue]
...This patch backport HADOOP-8469 and HADOOP-8470 to branch-1 and includes:1. Make NetworkTopology class pluggable for extension.2. Implement a 4-layer NetworkTopology class (named as NetworkT...
http://issues.apache.org/jira/browse/HADOOP-8820    Author: Junping Du, 2012-11-18, 13:14
[HADOOP-9047] TestHDFSFileSystemContract.testMkdirsWithUmask failed by using umask 022 - Hadoop - [issue]
...In PreCommit-test of HADOOP-9045, this error appears as it still use system's default 022 umask but not the 062 specifying in test....
http://issues.apache.org/jira/browse/HADOOP-9047    Author: Junping Du, 2012-11-15, 22:04
[HADOOP-9048] TestHDFSFileSystemContract.testMkdirsWithUmask failed by using umask 022 - Hadoop - [issue]
...In PreCommit-test of HADOOP-9405, this error appears as it still use system's default 022 umask but not the 062 specifying in test....
http://issues.apache.org/jira/browse/HADOOP-9048    Author: Junping Du, 2012-11-15, 18:32
[HADOOP-8144] pseudoSortByDistance in NetworkTopology doesn't work properly if no local node and first node is local rack node - Hadoop - [issue]
...pseudoSortByDistance in NetworkTopology.java should sort nodes according to its distance with reader as local node, local rack node, ... But if there is no local node with reader in nodes an...
http://issues.apache.org/jira/browse/HADOOP-8144    Author: Junping Du, 2012-08-15, 23:51
[HADOOP-8557] Core Test failed in jekins for patch pre-commit - Hadoop - [issue]
...In jenkins PreCommit build history (https://builds.apache.org/job/PreCommit-HADOOP-Build/), following tests are failed for all recently patches (build-1164,1166,1168,1170):org.apache.hadoop....
http://issues.apache.org/jira/browse/HADOOP-8557    Author: Junping Du, 2012-07-17, 22:51
[HADOOP-8472] Implementation of ReplicaPlacementPolicyNodeGroup to support 4-layer network topology - Hadoop - [issue]
...A subclass of ReplicaPlacementPolicyDefault, ReplicaPlacementPolicyNodeGroup was developed along with unit tests to support the four-layer hierarchical topology.The replica placement strateg...
http://issues.apache.org/jira/browse/HADOOP-8472    Author: Junping Du, 2012-07-04, 23:44
[HADOOP-8542] TestViewFsTrash failed several times on Precommit test - Hadoop - [issue]
...I met this error several times before (different patches), the latest one is in HADOOP-8472 which is unrelated to patch. Looks like this error comes and goes, and I cannot reproduce on my lo...
http://issues.apache.org/jira/browse/HADOOP-8542    Author: Junping Du, 2012-06-29, 15:12
[HADOOP-8526] Fix 13 Javadoc Warning in hadoop-hdfs-raid project - Hadoop - [issue]
http://issues.apache.org/jira/browse/HADOOP-8526    Author: Junping Du, 2012-06-25, 13:36
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