Peter Somogyi created HBASE-20287:
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Summary: After cluster startup list_regions command fails on
disabled table
Key: HBASE-20287
URL: https://issues.apache.org/jira/browse/HBASE-20287
Project: HBase
Issue Type: Sub-task
Components: shell
Affects Versions: 2.0.0
Reporter: Peter Somogyi
After cluster startup list_regions throw “ERROR: undefined method `toString'
for nil:NilClass”. If you enable the table and disable it you don't see the
error again, only after cluster startup.
{noformat}
After startup list_regions throw “ERROR: undefined method `toString' for
nil:NilClass”.
hbase(main):009:0> list_regions 'ltt'
ERROR: undefined method `toString' for nil:NilClass
List all regions for a particular table as an array and also filter them
by server name (optional) as prefix
and maximum locality (optional). By default, it will return all the
regions for the table with any locality.
The command displays server name, region name, start key, end key, size
of the region in MB, number of requests
and the locality. The information can be projected out via an array as
third parameter. By default all these information
is displayed. Possible array values are SERVER_NAME, REGION_NAME,
START_KEY, END_KEY, SIZE, REQ and LOCALITY. Values
are not case sensitive. If you don't want to filter by server name, pass
an empty hash / string as shown below.
Examples:
hbase> list_regions 'table_name'
hbase> list_regions 'table_name', 'server_name'
hbase> list_regions 'table_name', {SERVER_NAME => 'server_name',
LOCALITY_THRESHOLD => 0.8}
hbase> list_regions 'table_name', {SERVER_NAME => 'server_name',
LOCALITY_THRESHOLD => 0.8}, ['SERVER_NAME']
hbase> list_regions 'table_name', {}, ['SERVER_NAME', 'start_key']
hbase> list_regions 'table_name', '', ['SERVER_NAME', 'start_key']
Took 0.0283 seconds{noformat}
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