diff options
author | Michael Renner | 2014-06-11 15:10:33 +0000 |
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committer | Michael Renner | 2014-06-11 15:10:33 +0000 |
commit | 2aa4a119cc52b33d2ae226640a617c4ddb582c9e (patch) | |
tree | f7433c2c7fad780d8fa82ca40bdb2547d39ebcfa | |
parent | ae7732e4bef81cca7ec2c8d9548ab6e8b072778e (diff) |
fix & extend hot_standby_delay documentation
This should also account for all places where the refactoring of
the numbered dbparameters (host2, port2, etc.) was referenced in the
documentation. Drop the TODO entry.
-rw-r--r-- | TODO | 2 | ||||
-rwxr-xr-x | check_postgres.pl | 17 |
2 files changed, 8 insertions, 11 deletions
@@ -2,8 +2,6 @@ Quick list of outstanding items / bugs / feature requests for CP: NOTE: All bugzilla items are now on github -* Fix up references to dbhost2 and the like, or make them work again for backwards compatibility. - * The same_schema action does not check indexes. See bugzilla #54 * Perform automatic creation of views and function to allow all actions to be run diff --git a/check_postgres.pl b/check_postgres.pl index d3c55815e..0314c5599 100755 --- a/check_postgres.pl +++ b/check_postgres.pl @@ -8812,15 +8812,14 @@ and the name of the database on the fourth line. =head2 B<hot_standby_delay> (C<symlink: check_hot_standby_delay>) Checks the streaming replication lag by computing the delta -between the xlog position of a master server and the one of the slaves connected to it. The slave_ -server must be in hot_standby (e.g. read only) mode, therefore the minimum version to use this_ -action is Postgres 9.0. The I<--warning> and I<--critical> options are the delta between xlog -location. These values should match the volume of transactions needed to have the streaming -replication disconnect from the master because of too much lag. - -You must provide information on how to reach the second database by a connection -parameter ending in the number 2, such as "--dbport2=5543". If if it not given, -the action fails. +between the current xlog position of a master server and the replay location of a slave connected +to it. The slave server must be in hot_standby (e.g. read only) mode, therefore the minimum version to use +this action is Postgres 9.0. The I<--warning> and I<--critical> options are the delta between the xlog +locations. Since these values are byte offsets in the WAL they should match the expected transaction volume +of your application to prevent false postives or negatives. + +The first "--dbname", "--host", and "--port", etc. options are considered the +master; the second belongs to the slave. =head2 B<index_size> |