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https://issues.apache.org/jira/browse/HBASE-698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans updated HBASE-698:
-------------------------------------
Attachment: hbase-698.patch
This patch fixes the original issue (or as much we can do without appends).
This happens on a master failover:
{code}
2009-07-07 14:45:28,097 INFO org.apache.hadoop.hbase.master.HMaster: Found log
folder : jdcryans.local,60020,1246991630883
2009-07-07 14:45:28,097 INFO org.apache.hadoop.hbase.master.HMaster: Log folder
belongs to an existing region server
{code}
Whn know about the alive RS since we just scanned the rs folder in ZK. Then if
I kill -9 both Master and RS then I restart the cluster I see:
{code}
2009-07-07 14:47:10,034 DEBUG org.apache.hadoop.hbase.master.HMaster: This is a
fresh start, proceeding with normal startup
2009-07-07 14:47:10,038 INFO org.apache.hadoop.hbase.master.HMaster: Found log
folder : jdcryans.local,60020,1246991630883
2009-07-07 14:47:10,038 INFO org.apache.hadoop.hbase.master.HMaster: Log folder
doesn't belong to a known region server, splitting
2009-07-07 14:47:10,043 INFO org.apache.hadoop.hbase.regionserver.HLog:
Splitting 1 hlog(s) in
hdfs://localhost:9000/hbase/.logs/jdcryans.local,60020,1246991630883
...
{code}
I also removed the log splitting stuff in BaseScanner.
> HLog recovery is not performed after master failure
> ---------------------------------------------------
>
> Key: HBASE-698
> URL: https://issues.apache.org/jira/browse/HBASE-698
> Project: Hadoop HBase
> Issue Type: Bug
> Components: master, regionserver
> Affects Versions: 0.1.2
> Reporter: Clint Morgan
> Assignee: Jean-Daniel Cryans
> Priority: Blocker
> Fix For: 0.20.0
>
> Attachments: hbase-698.patch
>
>
> I have a local cluster running, and its logging to
> <hbase>/log_X.X.X.X_1213228101021_60020/
> Then I kill both master and regionserver, and restart. Looking through
> the logs I don't see anything about trying to recover from this hlog,
> it just creates a new hlog alongside the existing one (with a new
> startcode). The older hlog seems to be ignored, and the tables
> created in the inital session are all gone.
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