Do you need to patch Cloudera before running this script?
On 11/23/11 8:31 AM, Stack wrote:
On Wed, Nov 23, 2011 at 4:39 AM, kisalay<[email protected]> wrote:
This query is regarding the online_merge script from
https://issues.apache.org/jira/browse/HBASE-1621
My setup is hbase - cdh3u1, hadoop-cdh3-u0.
When I am running this script, I encounter the problem at the following
line:
info =
Writables.getHRegionInfo(result.getValue(HConstants::CATALOG_FAMILY,HConstants::REGIONINFO_QUALIFIER))
The result.getValue(HConstants::CATALOG_FAMILY,HConstants::REGIONINFO_QUALIFIER)
returns a null and Writable.getHRegionInfo throws a null-pointer-exception.
I am wondering in what cases can I get null returned
from
result.getValue(HConstants::CATALOG_FAMILY,HConstants::REGIONINFO_QUALIFIER)
?
Change the script to use
http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/util/Writables.html#getHRegionInfoOrNull(byte[])
instead. If it returns null, continue rather than proceed. Or clean
out these rows with null regioninfo before running the script by
deleting them from .META. You should see a list of what to delete if
you look in your master log. It should have complaint about rows with
empty info:regioninfos.
St.Ack
