Hi, That definitely sounds like an hbql problem. I will have a look.
Paul On Apr 12, 2010, at 3:59 PM, Something Something wrote: > Sounds like #1 is not HBase issue, but HBql issue. > > http://www.hbql.com/xref/org/apache/hadoop/hbase/hbql/impl/MappingManager.html > > May be this method should be synchronized: > > *public* *void* validatePersistentMetadata() *throws* HBqlException { > > > On Mon, Apr 12, 2010 at 2:20 PM, Something Something < > mailinglist...@gmail.com> wrote: > >> I run into the following two issues related to HBase all the time, and >> therefore am wondering if there are any permanent fixes for these: >> >> 1) When I start Hadoop & HBase for the first time, and run a single job it >> runs successfully; but when I fire 2 (or more) jobs only one of them runs >> successfully and the other one fails with exception saying... "table >> system_mappings" doesn't exist. Seems like some type of race condition. >> How do I bring up HBase with 'system_mappings' table already built? Or, how >> do I avoid running into this issue? >> >> 2) After 30 minutes or so on in-activity, HBase (or may be Zookeeper) stops >> working. I have to restart it. How do I ensure that it always stays up? >> >> Thanks for the help. >> >>
