On Tue, May 17, 2011 at 4:25 PM, Vidhyashankar Venkataraman
<[email protected]> wrote:
>   2. The master getting stuck unable to delete a WAL (I have seen this before 
> on this forum and a related JIRA on this one): We had worked around by 
> manually deleting a WAL. But during times when the master crashed during 
> table creation (with split key boundaries), the node that took over next as 
> the master (failover) started getting stuck for around 25% of the cluster. I 
> had to wipe out all the logs so that the master could start up right.
>
> But even then, the regionservers which had suffered the log issue couldn't 
> recognize the failed over master. (Is this something that has been observed 
> before?)
>

Please file an issue w/ log samples Vidhya.


>   3. createTableAsync with incorrect split keys: By mistake, I had some 
> duplicate keys in the split key byte array while calling the createTableAsync 
> function. The master crashed throwing a KeeperException (thanks to the 
> duplicate keys I guess?)
>

Do you have the exception Vidhya?  I'd think it'd be easy to add a
check of the keys passed before running the create.

> Also, can you let me know why createTableAsync blocks for some time and 
> throws a socket timeout exception when I try creating a table with a large 
> number of regions?
>

It shouldn't be blocking.  It should return.  Is this hbase-3744 fixed
in 0.90.3?

St.Ack

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