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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hbase/Troubleshooting" by stack
Date Thu, 07 May 2009 04:40:31 GMT
Dear Wiki user,

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The following page has been changed by stack:
http://wiki.apache.org/hadoop/Hbase/Troubleshooting

The comment on the change is:
Added #11

------------------------------------------------------------------------------
   1. [#8 Problem: Instability on Amazon EC2]
   1. [#9 Problem: Zookeeper SessionExpired events]
   1. [#10 Problem: Scanners keep getting timeouts]
+  1. [#11 Problem: Client says no such table but it exists]
  
  [[Anchor(1)]]
  == 1. Problem: Master initializes, but Region Servers do not ==
@@ -167, +168 @@

  === Resolution ===
   * Set hbase.client.scanner.caching in hbase-site.xml at a very low value like 1 or use
HTable.setScannerCaching(1).
  
+ [[Anchor(11)]]
+ == 11. Problem: Client says no such table but it exists ==
+  * Client can't find region in table, says no such table.
+ === Causes ===
+  * Just deleted a large table
+ === Resolution ===
+  * Run major compaction on the .META. table.  In the shell, type '''tool''' to learn how
to run a major compaction from the shell.
+ 

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