ChiaPing Tsai created PHOENIX-3569:
--------------------------------------
Summary: Deadlock when updating both of index and global table
Key: PHOENIX-3569
URL: https://issues.apache.org/jira/browse/PHOENIX-3569
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.9.0, 4.8.2
Reporter: ChiaPing Tsai
We update the global index in Observer#postBatchMutate, but the hook is called
before completing the mvcc.
If ParallelWriterIndexCommitter are busy to update the local index, the other
updates for global index will be blocked and the mvcc of data table won't be
completed. The deadlock happens since the ParallelWriterIndexCommitter will
never complete the updates for local index.
We can reproduce the deadlock through the following step.
# create a data table with a local and a global index.
# create 10+ (DEFAULT_CONCURRENT_INDEX_WRITER_THREADS) threads which disable
the auto commit to submit data
# wait for the deadlock. the rs log will show the following message. "STUCK:
MultiVersionConcurrencyControl{readPoint=8790, writePoint=8801}"
It seems to me that we should update the both of local and global index on the
hook of postPut and postDelete.
Any suggestions are welcomed.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
