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From build...@apache.org
Subject svn commit: r882045 - in /websites/production/activemq/content: cache/main.pageCache replicated-leveldb-store.html
Date Thu, 10 Oct 2013 17:21:29 GMT
Author: buildbot
Date: Thu Oct 10 17:21:29 2013
New Revision: 882045

Log:
Production update by buildbot for activemq

Modified:
    websites/production/activemq/content/cache/main.pageCache
    websites/production/activemq/content/replicated-leveldb-store.html

Modified: websites/production/activemq/content/cache/main.pageCache
==============================================================================
Binary files - no diff available.

Modified: websites/production/activemq/content/replicated-leveldb-store.html
==============================================================================
--- websites/production/activemq/content/replicated-leveldb-store.html (original)
+++ websites/production/activemq/content/replicated-leveldb-store.html Thu Oct 10 17:21:29
2013
@@ -153,6 +153,9 @@ failover:(tcp://broker1:61616,tcp://brok
 <table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"> property name </th><th colspan="1" rowspan="1" class="confluenceTh">
default value </th><th colspan="1" rowspan="1" class="confluenceTh"> Comments
</th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"> <tt>directory</tt>
</td><td colspan="1" rowspan="1" class="confluenceTd"> <tt>LevelDB</tt>
</td><td colspan="1" rowspan="1" class="confluenceTd"> The directory which the
store will use to hold it's data files. The store will create the directory if it does not
already exist. </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd">
<tt>readThreads</tt> </td><td colspan="1" rowspan="1" class="confluenceTd">
<tt>10</tt> </td><td colspan="1" rowspan="1" class="confluenceTd">
The number of concurrent IO read threads to allowed. </td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>logSize</tt> </td><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>104857600</tt> (10
 0 MB) </td><td colspan="1" rowspan="1" class="confluenceTd"> The max size (in
bytes) of each data log file before log file rotation occurs. </td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>logWriteBufferSize</tt> </td><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>4194304</tt> (4 MB) </td><td
colspan="1" rowspan="1" class="confluenceTd"> That maximum amount of log data to build
up before writing to the file system. </td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> <tt>verifyChecksums</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>false</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> Set to true to force checksum verification of all data
that is read from the file system. </td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> <tt>paranoidChecks</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>false</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> Make the store error out as soon as
  possible if it detects internal corruption. </td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>indexFactory</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>org.fusesource.leveldbjni.JniDBFactory, org.iq80.leveldb.impl.Iq80DBFactory</tt>
</td><td colspan="1" rowspan="1" class="confluenceTd"> The factory classes to
use when creating the LevelDB indexes </td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> <tt>indexMaxOpenFiles</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>1000</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> Number of open files that can be used by the index. </td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>indexBlockRestartInterval</tt>
</td><td colspan="1" rowspan="1" class="confluenceTd"> <tt>16</tt>
</td><td colspan="1" rowspan="1" class="confluenceTd"> Number keys between restart
points for delta encoding of keys. </td></tr><tr><td colspan="1" rowspan="1"
class="confluence
 Td"> <tt>indexWriteBufferSize</tt> </td><td colspan="1" rowspan="1"
class="confluenceTd"> <tt>6291456</tt> (6 MB) </td><td colspan="1"
rowspan="1" class="confluenceTd"> Amount of index data to build up in memory before converting
to a sorted on-disk file. </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd">
<tt>indexBlockSize</tt> </td><td colspan="1" rowspan="1" class="confluenceTd">
<tt>4096</tt> (4 K) </td><td colspan="1" rowspan="1" class="confluenceTd">
The size of index data packed per block. </td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>indexCacheSize</tt> </td><td
colspan="1" rowspan="1" class="confluenceTd"> <tt>268435456</tt> (256 MB) </td><td
colspan="1" rowspan="1" class="confluenceTd"> The maximum amount of off-heap memory to
use to cache index blocks. </td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"> <tt>indexCompression</tt> </td><td colspan="1"
rowspan="1" class="confluenceTd"> <tt>snappy</tt> </td><td colspan="1"
rowspa
 n="1" class="confluenceTd"> The type of compression to apply to the index blocks.  Can
be snappy or none. </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd">
<tt>logCompression</tt> </td><td colspan="1" rowspan="1" class="confluenceTd">
<tt>none</tt> </td><td colspan="1" rowspan="1" class="confluenceTd">
The type of compression to apply to the log records. Can be snappy or none. </td></tr></tbody></table>
 </div>
 
+
+
+<div class="panelMacro"><table class="warningMacro"><colgroup span="1"><col
span="1" width="24"><col span="1"></colgroup><tr><td colspan="1" rowspan="1"
valign="top"><img align="middle" src="https://cwiki.apache.org/confluence/images/icons/emoticons/forbidden.gif"
width="16" height="16" alt="" border="0"></td><td colspan="1" rowspan="1"><b>Caveats</b><br
clear="none">The LevelDB store does not yet support storing data associated with <a
shape="rect" href="delay-and-schedule-message-delivery.html" title="Delay and Schedule Message
Delivery">Delay and Schedule Message Delivery</a>.  Those are are stored in a separate
non-replicated KahaDB data files.  Unexpected results will occur if you use <a shape="rect"
href="delay-and-schedule-message-delivery.html" title="Delay and Schedule Message Delivery">Delay
and Schedule Message Delivery</a> with the replicated leveldb store since that data
will be not be there when the master fails over to a slave.</td></tr></table></div>
           </div>
         </td>
         <td valign="top">



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