Author: stack
Date: Wed Dec 8 21:08:08 2010
New Revision: 1043676
URL: http://svn.apache.org/viewvc?rev=1043676&view=rev
Log:
Added note on how low xceivers fails
Modified:
hbase/trunk/src/docbkx/book.xml
Modified: hbase/trunk/src/docbkx/book.xml
URL:
http://svn.apache.org/viewvc/hbase/trunk/src/docbkx/book.xml?rev=1043676&r1=1043675&r2=1043676&view=diff
==============================================================================
--- hbase/trunk/src/docbkx/book.xml (original)
+++ hbase/trunk/src/docbkx/book.xml Wed Dec 8 21:08:08 2010
@@ -399,6 +399,12 @@ be running to use Hadoop's scripts to ma
</para>
<para>Be sure to restart your HDFS after making the above
configuration.</para>
+ <para>Not having this configuration in place makes for strange looking
+ failures. Eventually you'll see a complain in the datanode logs
+ complaining about the xcievers exceeded, but on the run up to this
+ one manifestation is complaint about missing blocks. For example:
+ <code>10/12/08 20:10:31 INFO hdfs.DFSClient: Could not obtain block
blk_XXXXXXXXXXXXXXXXXXXXXX_YYYYYYYY from any node: java.io.IOException: No live
nodes contain current block. Will get new block locations from namenode and
retry...</code>
+ </para>
</section>
<section xml:id="windows">
