Too many delete delay

[Li Yong]

Hi all,
     I move my cluster to another cluster with CopyTable, then I found too many 
timeout, Most of them are Delete! I found the table has too many storefiels, so 
i do a major_compact, then things be better. After an hour, timeout again! I 
don't know why so many delay in delete, not put, not scan. Can anyone tell me, 
when will delete operation  use too much time? Thanks!
[     HBase version : 0.94.9    Hadoop version : 1.0.4 ]