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Add idle_session_timeout.

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This GUC variable works much like idle_in_transaction_session_timeout,
in that it kills sessions that have waited too long for a new client
query.  But it applies when we're not in a transaction, rather than
when we are.

Li Japin, reviewed by David Johnston and Hayato Kuroda, some
fixes by me

Discussion: https://postgr.es/m/763A0689-F189-459E-946F-F0EC4458980B@hotmail.com
This commit is contained in:
Tom Lane
2021-01-06 18:28:42 -05:00
parent 09cf1d5226
commit 9877374bef
11 changed files with 115 additions and 16 deletions
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13
src/backend/utils/misc/guc.c
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@@ -2509,7 +2509,7 @@ static struct config_int ConfigureNamesInt[] =
{
{"idle_in_transaction_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT,
gettext_noop("Sets the maximum allowed duration of any idling transaction."),
gettext_noop("Sets the maximum allowed idle time between queries, when in a transaction."),
gettext_noop("A value of 0 turns off the timeout."),
GUC_UNIT_MS
},
@@ -2518,6 +2518,17 @@ static struct config_int ConfigureNamesInt[] =
NULL, NULL, NULL
},
{
{"idle_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT,
gettext_noop("Sets the maximum allowed idle time between queries, when not in a transaction."),
gettext_noop("A value of 0 turns off the timeout."),
GUC_UNIT_MS
},
&IdleSessionTimeout,
0, 0, INT_MAX,
NULL, NULL, NULL
},
{
{"vacuum_freeze_min_age", PGC_USERSET, CLIENT_CONN_STATEMENT,
gettext_noop("Minimum age at which VACUUM should freeze a table row."),