Denys Vergiles created HBASE-19314:
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Summary: Column family with name "=" cause region in transition
Key: HBASE-19314
URL: https://issues.apache.org/jira/browse/HBASE-19314
Project: HBase
Issue Type: Bug
Components: Region Assignment
Affects Versions: 1.2.0
Environment: Server - AWS r4.2xlarge - 8 cores, 60 Gb RAM
OS - CentOS 7
Java - 1.8.0_121
HBase Version 1.2.0
Reporter: Denys Vergiles
During alter operation with namespaces i was able to create new column family
with name '='.
I didn't find any restriction in setting column name to non-alphabetical sign.
Once column name is created, master server is fails to start due to infinite
transition status of region server
The only possible solution which i found was to delete broken column families.
On attempt to clear status of all ephemeral nodes in zookeeper, did not allow
to bring server back to life
(https://community.cloudera.com/t5/Storage-Random-Access-HDFS/HBase-Region-in-Transition/m-p/26727#M1183)
hbase hbck
{code}
17/11/14 13:31:16 INFO util.HBaseFsck: Handling overlap merges in parallel. set
hbasefsck.overlap.merge.parallel to false to run serially.
ERROR: There is a hole in the region chain between and . You need to create a
new .regioninfo and region dir in hdfs to plug the hole.
ERROR: Found inconsistency in table some_namespace:points
{code}
Table example
{code}
escribe 'some_namespace:points'
Table some_namespace:points is ENABLED
some_namespace:points, {TABLE_ATTRIBUTES => {coprocessor$1 =>
'hdfs://localhost:9000/test/coprocessor.jar%7Ccoprocessor%7C107374182
3|', METADATA => {'HBASE_NAMESPACE' => 'some_namespace', 'KAFKA_BROKERS_IDS' =>
'/brokers/ids', 'KAFKA_TOPIC' => 'coprocessor-data', 'points_TO_GROUP_TTL' =>
'3600', 'ZOOKEEPER_ROOT' => '/'}}
COLUMN FAMILIES DESCRIPTION
{NAME => '=', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false',
KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'DIFF', TTL => 'FOREVER',
COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOC
KCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
{NAME => 'i', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false',
KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'DIFF', TTL => 'FOREVER',
COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOC
KCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
{NAME => 'm', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false',
KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'DIFF', TTL => 'FOREVER',
COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOC
KCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
{code}
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