database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-30 06:01:21 +03:00
Code Activity

Report progress of CREATE INDEX operations

Browse Source 
This uses the progress reporting infrastructure added by c16dc1aca5,
adding support for CREATE INDEX and CREATE INDEX CONCURRENTLY.

There are two pieces to this: one is index-AM-agnostic, and the other is
AM-specific.  The latter is fairly elaborate for btrees, including
reportage for parallel index builds and the separate phases that btree
index creation uses; other index AMs, which are much simpler in their
building procedures, have simplistic reporting only, but that seems
sufficient, at least for non-concurrent builds.

The index-AM-agnostic part is fairly complete, providing insight into
the CONCURRENTLY wait phases as well as block-based progress during the
index validation table scan.  (The index validation index scan requires
patching each AM, which has not been included here.)

Reviewers: Rahila Syed, Pavan Deolasee, Tatsuro Yamada
Discussion: https://postgr.es/m/20181220220022.mg63bhk26zdpvmcj@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
2019-04-02 15:18:08 -03:00
parent 4d0e994eed
commit ab0dfc961b
37 changed files with 768 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/backend/storage/lmgr/lock.c
View File

@@ -2807,6 +2807,7 @@ FastPathGetRelationLockEntry(LOCALLOCK *locallock)
* xacts merely awaiting such a lock are NOT reported.
*
* The result array is palloc'd and is terminated with an invalid VXID.
* *countp, if not null, is updated to the number of items set.
*
* Of course, the result could be out of date by the time it's returned,
* so use of this function has to be thought about carefully.
@@ -2817,7 +2818,7 @@ FastPathGetRelationLockEntry(LOCALLOCK *locallock)
* uses of the result.
*/
VirtualTransactionId *
GetLockConflicts(const LOCKTAG *locktag, LOCKMODE lockmode)
GetLockConflicts(const LOCKTAG *locktag, LOCKMODE lockmode, int *countp)
{
static VirtualTransactionId *vxids;
LOCKMETHODID lockmethodid = locktag->locktag_lockmethodid;
@@ -2964,6 +2965,8 @@ GetLockConflicts(const LOCKTAG *locktag, LOCKMODE lockmode)
LWLockRelease(partitionLock);
vxids[count].backendId = InvalidBackendId;
vxids[count].localTransactionId = InvalidLocalTransactionId;
if (countp)
*countp = count;
return vxids;
}
@@ -3019,6 +3022,8 @@ GetLockConflicts(const LOCKTAG *locktag, LOCKMODE lockmode)
vxids[count].backendId = InvalidBackendId;
vxids[count].localTransactionId = InvalidLocalTransactionId;
if (countp)
*countp = count;
return vxids;
}