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Rename max_predicate_locks_per_transaction.

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The new name, max_pred_locks_per_transaction, is shorter.

Kevin Grittner, per discussion.
This commit is contained in:
Robert Haas
2011-02-15 08:00:04 -05:00
parent 2fd77060a2
commit 6a77e9385e
4 changed files with 12 additions and 12 deletions
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10
src/backend/storage/lmgr/predicate.c
View File

@ -1874,7 +1874,7 @@ DeleteChildTargetLocks(const PREDICATELOCKTARGETTAG *newtargettag)
* thresholds are, either making it proportional to the number of
* tuples in a page & pages in a relation, or at least making it a
* GUC. Currently the threshold is 3 for a page lock, and
* max_predicate_locks_per_transaction/2 for a relation lock, chosen
* max_pred_locks_per_transaction/2 for a relation lock, chosen
* entirely arbitrarily (and without benchmarking).
*/
static int
@ -2063,7 +2063,7 @@ CreatePredicateLock(const PREDICATELOCKTARGETTAG *targettag,
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of shared memory"),
errhint("You might need to increase max_predicate_locks_per_transaction.")));
errhint("You might need to increase max_pred_locks_per_transaction.")));
if (!found)
{
SHMQueueInit(&(target->predicateLocks));
@ -2082,7 +2082,7 @@ CreatePredicateLock(const PREDICATELOCKTARGETTAG *targettag,
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of shared memory"),
errhint("You might need to increase max_predicate_locks_per_transaction.")));
errhint("You might need to increase max_pred_locks_per_transaction.")));
if (!found)
{
@ -2341,7 +2341,7 @@ PredicateLockTupleRowVersionLink(const Relation relation,
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of shared memory"),
errhint("You might need to increase max_predicate_locks_per_transaction.")));
errhint("You might need to increase max_pred_locks_per_transaction.")));
if (!found)
{
SHMQueueInit(&(newtarget->predicateLocks));
@ -3337,7 +3337,7 @@ ReleaseOneSerializableXact(SERIALIZABLEXACT *sxact, bool partial,
ereport(ERROR,
(errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("out of shared memory"),
errhint("You might need to increase max_predicate_locks_per_transaction.")));
errhint("You might need to increase max_pred_locks_per_transaction.")));
if (found)
{
if (predlock->commitSeqNo < sxact->commitSeqNo)

4
src/backend/utils/misc/guc.c
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@ -1725,10 +1725,10 @@ static struct config_int ConfigureNamesInt[] =
},
{
{"max_predicate_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT,
{"max_pred_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT,
gettext_noop("Sets the maximum number of predicate locks per transaction."),
gettext_noop("The shared predicate lock table is sized on the assumption that "
"at most max_predicate_locks_per_transaction * max_connections distinct "
"at most max_pred_locks_per_transaction * max_connections distinct "
"objects will need to be locked at any one time.")
},
&max_predicate_locks_per_xact,

2
src/backend/utils/misc/postgresql.conf.sample
View File

@ -503,7 +503,7 @@
# Note: Each lock table slot uses ~270 bytes of shared memory, and there are
# max_locks_per_transaction * (max_connections + max_prepared_transactions)
# lock table slots.
#max_predicate_locks_per_transaction = 64 # min 10
#max_pred_locks_per_transaction = 64 # min 10
# (change requires restart)
#------------------------------------------------------------------------------