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Add idle_in_transaction_session_timeout.

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Vik Fearing, reviewed by Stéphane Schildknecht and me, and revised
slightly by me.
This commit is contained in:
Robert Haas
2016-03-16 11:30:45 -04:00
parent 5871b88487
commit c6dda1f48e
12 changed files with 91 additions and 3 deletions
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20
doc/src/sgml/config.sgml
View File

@ -6063,6 +6063,26 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
</listitem>
</varlistentry>
<varlistentry id="guc-idle-in-transaction-session-timeout" xreflabel="idle_in_transaction_session_timeout">
<term><varname>idle_in_transaction_session_timeout</varname> (<type>integer</type>)
<indexterm>
<primary><varname>idle_in_transaction_session_timeout</> configuration parameter</primary>
</indexterm>
</term>
<listitem>
<para>
Terminate any session with an open transaction that has been idle for
longer than the specified duration in milliseconds. This allows any
locks held by that session to be released and the connection slot to be reused;
it also allows tuples visible only to this transaction to be vacuumed. See
<xref linkend="routine-vacuuming"> for more details about this.
</para>
<para>
The default value of 0 disables this feature.
</para>
</listitem>
</varlistentry>
<varlistentry id="guc-vacuum-freeze-table-age" xreflabel="vacuum_freeze_table_age">
<term><varname>vacuum_freeze_table_age</varname> (<type>integer</type>)
<indexterm>

4
doc/src/sgml/mvcc.sgml
View File

@ -725,7 +725,9 @@ ERROR: could not serialize access due to read/write dependencies among transact
<listitem>
<para>
Don't leave connections dangling <quote>idle in transaction</quote>
longer than necessary.
longer than necessary. The configuration parameter
<xref linkend="guc-idle-in-transaction-session-timeout"> may be used to
automatically disconnect lingering sessions.
</para>
</listitem>
<listitem>