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[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
[HADOOP-8473] Update Balancer to support new NetworkTopology with NodeGroup - Hadoop - [issue]
...Since the Balancer is a Hadoop Tool, it was updated to be directly aware of four-layer hierarchy instead of creating an alternative Balancer implementation. To accommodate extensibility, a n...
http://issues.apache.org/jira/browse/HADOOP-8473    Author: Junping Du, 2012-06-04, 17:18
[HADOOP-8474] Make locatlity in YARN's container assignment and task scheduling pluggable for other deployment topology - Hadoop - [issue]
...There are several classes in YARN’s container assignment and task scheduling algorithms that relate to data locality which were updated to give preference to running a container on other loc...
http://issues.apache.org/jira/browse/HADOOP-8474    Author: Junping Du, 2012-06-04, 10:16
[HADOOP-8475] 4-layer topology (with NodeGroup layer) implementation of Container Assignment and Task Scheduling (for YARN) - Hadoop - [issue]
...There are several classes in YARN’s container assignment and task scheduling algorithms that related to data locality which were updated to give preference to running a container on the same...
http://issues.apache.org/jira/browse/HADOOP-8475    Author: Junping Du, 2012-06-04, 09:54
[HADOOP-8471] Make ReplicaPlacementPolicyDefault extensible for reuse code in subclass - Hadoop - [issue]
...ReplicaPlacementPolicy is already a pluggable component in Hadoop. A user specified ReplicaPlacementPolicy can be specified in the hdfs-site.xml configuration under the key "dfs.block.replic...
http://issues.apache.org/jira/browse/HADOOP-8471    Author: Junping Du, 2012-06-04, 09:06
[HADOOP-8304] DNSToSwitchMapping should add interface to resolve individual host besides a list of host - Hadoop - [issue]
...DNSToSwitchMapping now has only one API to resolve a host list: public List<String> resolve(List<String> names). But the two major caller: RackResolver.resolve() and DatanodeMana...
http://issues.apache.org/jira/browse/HADOOP-8304    Author: Junping Du, 2012-05-09, 12:30
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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