New Contributor
Posts: 12
Registered: ‎04-12-2014

impala error

[ Edited ]

i create a hbase table by hive,when i enter ‘show tables’ in impala-shell,it is ok.but when i enter 'select count(*) from usertable',there is the error:

"Failed to load metadata for table: usertable,

invalidate metadata usertable may resolve this problem

caused by NULLPointerException


but the table is exsist,and i excute 'invalidate metadata', it is the same error!

why? help me!

Posts: 1,892
Kudos: 431
Solutions: 302
Registered: ‎07-31-2013

Re: impala error

Can you see if your target ImpalaD and the CatalogServer logs have any exceptions/logs in them with a NullPointerException?