external
/
citus
mirror of https://github.com/citusdata/citus.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #2568 from citusdata/fix_spinlock_use 

Make sure spinlock is not left unreleased when an exception is thrown
pull/2573/head
Murat Tuncer 2018-12-25 16:27:49 +03:00 committed by GitHub
parent 38579d52d0 3b95a03c3e
commit 1dbbc6664f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/backend/distributed/transaction/backend_data.c
View File

@ -829,9 +829,15 @@ AssignDistributedTransactionId(void)
void
MarkCitusInitiatedCoordinatorBackend(void)
{
/*
* GetLocalGroupId may throw exception which can cause leaving spin lock
* unreleased. Calling GetLocalGroupId function before the lock to avoid this.
*/
int localGroupId = GetLocalGroupId();
SpinLockAcquire(&MyBackendData->mutex);
MyBackendData->citusBackend.initiatorNodeIdentifier = GetLocalGroupId();
MyBackendData->citusBackend.initiatorNodeIdentifier = localGroupId;
MyBackendData->citusBackend.transactionOriginator = true;
SpinLockRelease(&MyBackendData->mutex);