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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1129) Master won't go down; stuck joined on rootScanner
Date Thu, 15 Jan 2009 20:36:59 GMT
Master won't go down; stuck joined on rootScanner

                 Key: HBASE-1129
                 URL: https://issues.apache.org/jira/browse/HBASE-1129
             Project: Hadoop HBase
          Issue Type: Bug
            Reporter: stack

Here are the problem threads:

"RegionManager.rootScanner" daemon prio=10 tid=0x00000000404a4800 nid=0x4d57 runnable [0x0000000042014000..0x0000000042014a80]
   java.lang.Thread.State: RUNNABLE
    at org.apache.hadoop.hbase.Chore.run(Chore.java:58)

"HMaster" prio=10 tid=0x0000000040644800 nid=0x4d56 in Object.wait() [0x00000000415a4000..0x00000000415a4d00]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007fd8975d00c0> (a org.apache.hadoop.hbase.master.RootScanner)
    at java.lang.Thread.join(Thread.java:1143)
    - locked <0x00007fd8975d00c0> (a org.apache.hadoop.hbase.master.RootScanner)
    at java.lang.Thread.join(Thread.java:1196)
    at org.apache.hadoop.hbase.master.RegionManager.stop(RegionManager.java:481)
    at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:388)

Here is code at #58 in Chore:

  public void run() {
    try {
      while (!initialChore()) {

Looks like we sleep for ever.

Have to kill master.

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