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[HBASE-7271] Have a single executor for all zkWorkers in the assignment manager - HBase - [issue]
...The current strategy is to have an array of monothreaded executor, and hash the zk path to ensure that there are no two events on the same region executed in parallel  I think a single ...    Author: nkeywal , 2012-12-11, 08:40
[HBASE-6401] HBase may lose edits after a crash if used with HDFS 1.0.3 or older - HBase - [issue]
...This comes from a hdfs bug, fixed in some hdfs versions. I haven't found the hdfs jira for this.Context: HBase Write Ahead Log features. This is using hdfs append. If the node crashes, the f...    Author: nkeywal , 2012-12-05, 14:59
[HBASE-7248] Improve the resources usage in assignement - HBase - [issue]
...On top on HBASE-7246 and HBASE-7247, I've changed some parameters:hbase.regionserver.executor.openregion.threads from 3 to 300hbase.assignment.zkevent.workers from 5 to    Author: nkeywal , 2012-11-30, 19:00
[HBASE-5877] When a query fails because the region has moved, let the regionserver return the new address to the client - HBase - [issue]
...This is mainly useful when we do a rolling restart. This will decrease the load on the master and the network load.Note that a region is not immediately opened after a close. So: it seems pr...    Author: nkeywal , 2012-11-30, 10:22
[HBASE-7220] Creating a table with 3000 regions on 2 nodes fails after 1 hour - HBase - [issue]
...I'm trying to create a table with 3000 regions on two regions servers, from the shell.It's ok on trunk a standalone config.It's ok on 0.94It's not ok on trunk: it fails after around 1 hour.I...    Author: nkeywal , 2012-11-30, 02:46
[HBASE-7227] KeyLocker#acquireLocks should be synchronized - HBase - [issue]
...without this, we're looking for deadlocks.I'm looking at the code currently, I may add stuff to this jira...    Author: nkeywal , 2012-11-28, 13:46
[HBASE-7146] Fix the wrong reference to getReader survived in theFSHLog javadoc - HBase - [issue]
...In FSHLog, a wrong reference to getReader survived in the javadoc: * To read an HLog, call {@link #getReader(org.apache.hadoop.fs.FileSystem, * org.apache.hadoop.fs.Path, org.apach...    Author: nkeywal , 2012-11-22, 00:33
[HBASE-6356] printStackTrace in FSUtils - HBase - [issue]
...This is bad...    public boolean accept(Path p) {      boolean isValid = false;      try {        if (HConstants.HBASE_NON_USER_TA...    Author: nkeywal , 2012-11-14, 11:18
[HBASE-7104] HBase includes multiple versions of netty: 3.5.0; 3.2.4; 3.2.2 - HBase - [issue]
...We've got 3 of them on trunk.[INFO] org.apache.hbase:hbase-server:jar:0.95-SNAPSHOT[INFO] +- io.netty:netty:jar:3.5.0.Final:compile[INFO] +- org.apache.zookeeper:zook...    Author: nkeywal , 2012-11-14, 11:17
[HBASE-6109] Improve RIT performances during assignment on large clusters - HBase - [issue]
...The main points in this patch are: lowering the number of copy of the RIT list lowering the number of synchronization synchronizing on a region rather than on everythingIt also contains: som...    Author: nkeywal , 2012-10-18, 04:46