Edward J. Yoon wrote:
To change hbase.regionserver.lease.period, Should I restart hbase cluster?
Edward: Yes, unfortunately (should make it so you don't have to).
David: Please upgrade to hbase 0.18.1 for other reasons than
hbase.regionserver.lease.period
(and hadoop 0.18.2). You do not need to upgrade hadoop to run hbase
0.18.1 (or viceversa). If lease period is all you want to change
(HBASE-821), you don't need to upgrade; just make the change in your
configuration (as J-D says) and copy it around your cluster.
St.Ack
On Sat, Nov 22, 2008 at 1:33 AM, Jean-Daniel Cryans <[EMAIL PROTECTED]> wrote:
David,
You should indeed increase your hbase.regionserver.lease.period to at least
2 minutes.
J-D
On Fri, Nov 21, 2008 at 4:55 AM, David Alves <[EMAIL PROTECTED]>wrote:
Hi
I've seen this issue a lot in the mailing list, but I still have a
doubt.
My map tasks keep failing with unknownscannerexception (2 map tasks
on same node over a 3 node cluster with 4Gb mem, scanning almost 40 GBs of
data, running hadoop 0.18.0, and hbase 0.18.0), this happened in the past,
but as it passed 50% of the times rarely a M/R task completely failed, as
the data increased the USE now completely prevents the maps from running to
completion. I'm only scanning the table, there are no inserts at the same
time.
I've previouly seen mentioned a lease period I could increase. Is
this the "hbase.regionserver.lease.period" property? Should I upgrade to
hbase 0.18.1, and if so must I also update hadoop?
Regards
David Alves
