diff options
| author | Robert Haas <rhaas@postgresql.org> | 2016-03-10 12:44:09 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2016-03-10 12:44:09 -0500 |
| commit | 53be0b1add7064ca5db3cd884302dfc3268d884e (patch) | |
| tree | 913271b90f5a41778fe5bdbe2ac200c785dd6778 /src/backend/storage/lmgr/proc.c | |
| parent | a3a8309d450f7c4d1b743e84ba54ef5f7877d7be (diff) | |
Provide much better wait information in pg_stat_activity.
When a process is waiting for a heavyweight lock, we will now indicate
the type of heavyweight lock for which it is waiting. Also, you can
now see when a process is waiting for a lightweight lock - in which
case we will indicate the individual lock name or the tranche, as
appropriate - or for a buffer pin.
Amit Kapila, Ildus Kurbangaliev, reviewed by me. Lots of helpful
discussion and suggestions by many others, including Alexander
Korotkov, Vladimir Borodin, and many others.
Diffstat (limited to 'src/backend/storage/lmgr/proc.c')
| -rw-r--r-- | src/backend/storage/lmgr/proc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c index 6453b88a5b8..46838d852e5 100644 --- a/src/backend/storage/lmgr/proc.c +++ b/src/backend/storage/lmgr/proc.c @@ -404,6 +404,9 @@ InitProcess(void) Assert(MyProc->lockGroupLeader == NULL); Assert(dlist_is_empty(&MyProc->lockGroupMembers)); + /* Initialize wait event information. */ + MyProc->wait_event_info = 0; + /* * Acquire ownership of the PGPROC's latch, so that we can use WaitLatch * on it. That allows us to repoint the process latch, which so far |