[
https://issues.apache.org/jira/browse/HBASE-15600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303317#comment-15303317
]
Anoop Sam John commented on HBASE-15600:
----------------------------------------
Sorry if I was not clear abt the last comment
{code}
checkAndPrepareMutation(cpMutation, replay, cpFamilyMap, now);
3125
3126 // Acquire row locks. If not, the whole batch will fail.
3127 acquiredRowLocks.add(getRowLock(cpMutation.getRow(),
true));
{code}
checkRow() is done already in checkAndPrepareMutation(). getRowLock() is
going to do it again , instead if we use getRowLockInternal() that step is
avoided. Not a big deal, still better we can avoid 2 compare ops.
Can change on commit if you agree Enis. +1
> Add provision for adding mutations to memstore or able to write to same
> region in batchMutate coprocessor hooks
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-15600
> URL: https://issues.apache.org/jira/browse/HBASE-15600
> Project: HBase
> Issue Type: Improvement
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Rajeshbabu Chintaguntla
> Labels: phoenix
> Fix For: 2.0.0, 1.3.0, 1.4.0, 0.98.20
>
> Attachments: HBASE-15600.patch, HBASE-15600_v1.patch,
> HBASE-15600_v2.patch, hbase-15600_v3.patch, hbase-15600_v4.patch,
> hbase-15600_v5.patch, hbase-15600_v6.patch
>
>
> As part of PHOENIX-1734 we need to write the index updates to same region
> from coprocessors but writing from batchMutate API is not allowed because of
> mvcc.
> Raised PHOENIX-2742 to discuss any alternative way to write to the same
> region directly or not but not having any proper solution there.
> Currently we have provision to write wal edits from coprocessors. We can set
> wal edits in MiniBatchOperationInProgress.
> {noformat}
> /**
> * Sets the walEdit for the operation(Mutation) at the specified position.
> * @param index
> * @param walEdit
> */
> public void setWalEdit(int index, WALEdit walEdit) {
> this.walEditsFromCoprocessors[getAbsoluteIndex(index)] = walEdit;
> }
> {noformat}
> Similarly we can allow to write mutations from coprocessors to memstore as
> well. Or else we should provide the batch mutation API allow write in batch
> mutate coprocessors.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
