Environment
Hbase: 0.92
Hadoop: hadoop-0.20.2-cdh3u3

I am testing hbase 0.92 for a new storage system we are building. In
the tests, I insert around 2-3 billion rows and then run some
scans/queries against it to test the performance. Once the tests are
complete, I drop all of the tables and recreate them to clear out the
test data. But, it doesn't look like the /hbase/root/.logs is getting
cleared. It seems to just keep growing, and the only way to clear it
out is to restart the hbase cluster. After the restarts, the
regionserver logs are filled with this:
---------
12/02/22 22:57:58 INFO wal.HLogSplitter: This region's directory
doesn't exist: 
hdfs://10.130.1.15:7080/foo/hbase/root/device/9605bdd29d02212f23499296542341d8.
It is very likely that it was already split so it's safe to discard
those edits.
12/02/22 22:57:58 INFO wal.HLogSplitter: This region's directory
doesn't exist: 
hdfs://10.130.1.15:7080/foo/hbase/root/device.device/b3b96cd17e683e52f8c72e14229f5567.
It is very likely that it was already split so it's safe to discard
those edits.
12/02/22 22:57:58 INFO wal.HLogSplitter: This region's directory
doesn't exist: 
hdfs://10.130.1.15:7080/foo/hbase/root/device/83832bcdc8a1bde1094d9039594cb067.
It is very likely that it was already split so it's safe to discard
those edits.
12/02/22 22:57:58 INFO wal.HLogSplitter: This region's directory
doesn't exist: 
hdfs://10.130.1.15:7080/foo/hbase/root/device/140ded7a67c8cf2a0e7cbbf037033889.
It is very likely that it was already split so it's safe to discard
those edits.
.....
----------

Size of /hbase/root/device: 110GB
Size of /hbase/root/.logs: 770GB

Alok

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