database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-04 20:11:56 +03:00
Code Activity

Send status updates back from standby server to master, indicating how far

Browse Source 
the standby has written, flushed, and applied the WAL. At the moment, this
is for informational purposes only, the values are only shown in
pg_stat_replication system view, but in the future they will also be needed
for synchronous replication.

Extracted from Simon riggs' synchronous replication patch by Robert Haas, with
some tweaking by me.
This commit is contained in:
Heikki Linnakangas
2011-02-10 21:00:29 +02:00
parent 4c468b37a2
commit b186523fd9
15 changed files with 352 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
doc/src/sgml/monitoring.sgml
View File

@@ -298,8 +298,11 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
<entry><structname>pg_stat_replication</><indexterm><primary>pg_stat_replication</primary></indexterm></entry>
<entry>One row per WAL sender process, showing process <acronym>ID</>,
user OID, user name, application name, client's address and port number,
time at which the server process began execution, current WAL sender
state and transaction log location. The columns detailing what exactly
time at which the server process began execution, and the current WAL
sender state and transaction log location. In addition, the standby
reports the last transaction log position it received and wrote, the last
position it flushed to disk, and the last position it replayed, and this
information is also displayed here. The columns detailing what exactly
the connection is doing are only visible if the user examining the view
is a superuser.
</entry>