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[HADOOP-659] Boost the priority of re-replicating blocks that are far from their replication target - Hadoop - [issue]
...I see two types of replications that should be accelerated compared to all others.1. Blocks that have only one remaining copy (but are required to have higher replication).2. Blocks that hav...
http://issues.apache.org/jira/browse/HADOOP-659    Author: Konstantin Shvachko, 2009-07-08, 16:42
[HADOOP-572] Chain reaction in a big cluster caused by simultaneous failure of only a few data-nodes. - Hadoop - [issue]
...I've observed a cluster crash caused by simultaneous failure of only 3 data-nodes.The crash is reproducable. In order to reproduce it you need a rather large cluster.To simplify calculations...
http://issues.apache.org/jira/browse/HADOOP-572    Author: Konstantin Shvachko, 2009-07-08, 16:42
[HADOOP-430] http server should die if the Datanode fails. - Hadoop - [issue]
...HADOOP-375 changed the order in which a data node registers and starts its http server.Current version first starts the http server, then registers. As a result if the registration fails,whi...
http://issues.apache.org/jira/browse/HADOOP-430    Author: Konstantin Shvachko, 2009-07-08, 16:42
[HADOOP-456] Checkpointing and logging of data node descriptors - Hadoop - [issue]
...This is a partial implementation of the DFS cluster startup process laid out in HADOOP-306.The description of the patch is here:http://issues.apache.org/jira/browse/HADOOP-306#action_1242763...
http://issues.apache.org/jira/browse/HADOOP-456    Author: Konstantin Shvachko, 2009-07-08, 16:42
[HADOOP-394] MiniDFSCluster shudown order - Hadoop - [issue]
...I propose to reverse the order of shutdown in MiniDFSCluster.Currently it shutdowns the name node first and then the data node,which causes the data node throwing unnecessary Exceptions in u...
http://issues.apache.org/jira/browse/HADOOP-394    Author: Konstantin Shvachko, 2009-07-08, 16:41
[HADOOP-438] DFS pathname limitation. - Hadoop - [issue]
...I was trying to create a deep hierarchy of directories using DFS mkdirs().When the path to the leaf directory became long (~20000) DFS was still able to createdirectories with these names, b...
http://issues.apache.org/jira/browse/HADOOP-438    Author: Konstantin Shvachko, 2009-07-08, 16:41
[HADOOP-396] Writable DatanodeID - Hadoop - [issue]
...This patch implements Owen's comments to HADOOP-321. Namely, Namenode.sendHeartbeat does not create a throwaway DatanodeDescriptor. DatanodeID is sufficient in this case. DatanodeID is made ...
http://issues.apache.org/jira/browse/HADOOP-396    Author: Konstantin Shvachko, 2009-07-08, 16:41
[HADOOP-405] Duplicate browseDirectory.jsp - Hadoop - [issue]
...I found 2 identical filessrc\webapps\datanode\browseDirectory.jspandsrc\webapps\dfs\browseDirectory.jspAnd there is a line in build.xml that makes the copy    <copy file="$...
http://issues.apache.org/jira/browse/HADOOP-405    Author: Konstantin Shvachko, 2009-07-08, 16:41
[HADOOP-415] DFSNodesStatus() should sort data nodes. - Hadoop - [issue]
...HADOOP-392 introduced a new TreeMap member (datanodeMapByName) in the name node.It is used solely for reporting the data nodes in the UI sorted by their names.I think it is quite inefficient...
http://issues.apache.org/jira/browse/HADOOP-415    Author: Konstantin Shvachko, 2009-07-08, 16:41
[HADOOP-226] DFSShell problems. Incorrect block replication detection in fsck. - Hadoop - [issue]
...1. We need to adjust Dfsck to the new per-file replication feature.fsck checks block replication based on the configured global replication parameter.Which is now just the default. The actua...
http://issues.apache.org/jira/browse/HADOOP-226    Author: Konstantin Shvachko, 2009-07-08, 16:41
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