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Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index f83770350ed..d4d1fe45cc1 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -1732,6 +1732,27 @@ include_dir 'conf.d' </listitem> </varlistentry> + <varlistentry id="guc-logical-decoding-work-mem" xreflabel="logical_decoding_work_mem"> + <term><varname>logical_decoding_work_mem</varname> (<type>integer</type>) + <indexterm> + <primary><varname>logical_decoding_work_mem</varname> configuration parameter</primary> + </indexterm> + </term> + <listitem> + <para> + Specifies the maximum amount of memory to be used by logical decoding, + before some of the decoded changes are written to local disk. This + limits the amount of memory used by logical streaming replication + connections. It defaults to 64 megabytes (<literal>64MB</literal>). + Since each replication connection only uses a single buffer of this size, + and an installation normally doesn't have many such connections + concurrently (as limited by <varname>max_wal_senders</varname>), it's + safe to set this value significantly higher than <varname>work_mem</varname>, + reducing the amount of decoded changes written to disk. + </para> + </listitem> + </varlistentry> + <varlistentry id="guc-max-stack-depth" xreflabel="max_stack_depth"> <term><varname>max_stack_depth</varname> (<type>integer</type>) <indexterm> |