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Author SHA1 Message Date
Ian Barwick
ff26173b1e doc: add note about compiling against Pg11 and later with the --with-llvm option 2019-03-22 10:12:23 +09:00
Ian Barwick
4c11a57334 use a constant to denote unknown replication lag 2019-03-22 10:12:19 +09:00
Ian Barwick
1d2d6e3587 doc: consolidate witness server documentation 2019-03-20 16:30:09 +09:00
Ian Barwick
c03913d32a doc: various improvements to repmgrd documentation 2019-03-20 16:10:38 +09:00
Ian Barwick
37a41a66f9 Check node recovery type before attempting to write an event record 
In some corner cases (e.g. immediately after a switchover) where
the current primary has not yet been determined, the provided connection
might not be writeable. This prevents error messages such as
"cannot execute INSERT in a read-only transaction" generating unnecessary
noise in the logs.
 2019-03-20 12:14:53 +09:00
Ian Barwick
4c2c8ecbab Fix logging related to "connection_check_type" 
Also log the selected type at repmgrd startup.
 2019-03-20 12:13:51 +09:00
Ian Barwick
b84b6180ee repmgrd: improve witness node monitoring 
Mainly fix a couple of places where "standby" was hard-coded into a log
message which can apply either to a witness or a standby.
 2019-03-20 12:13:47 +09:00
Ian Barwick
58f55222d9 Explictly log PQping() failures 2019-03-20 12:13:44 +09:00
Ian Barwick
5cbaff8d0a Improve database connection failure logging 
Log the output of PQerrorStatus() in a couple of places where it was missing.

Additionally, always log the output of PQerrorStatus() starting with a blank
line, otherwise the first line looks like it was emitted by repmgr, and
it's harder to scan the error message.

Before:

    [2019-03-20 11:24:15] [DETAIL] could not connect to server: Connection refused
            Is the server running on host "localhost" (::1) and accepting
            TCP/IP connections on port 5501?
    could not connect to server: Connection refused
            Is the server running on host "localhost" (127.0.0.1) and accepting
            TCP/IP connections on port 5501?

After:

    [2019-03-20 11:27:21] [DETAIL]
    could not connect to server: Connection refused
            Is the server running on host "localhost" (::1) and accepting
            TCP/IP connections on port 5501?
    could not connect to server: Connection refused
            Is the server running on host "localhost" (127.0.0.1) and accepting
            TCP/IP connections on port 5501?
 2019-03-20 12:13:40 +09:00
Ian Barwick
a38e229e61 check_primary_status(): handle case where recovery type unknown 2019-03-20 12:13:34 +09:00
Ian Barwick
272abdd483 Refactor check_primary_status() 
Reduce nested if/else branching, and improve documentation.
 2019-03-20 12:13:08 +09:00
Ian Barwick
b4f6043abc Update .gitignore 
Ignore artefacts from failed patch application.
 2019-03-20 12:11:57 +09:00
Ian Barwick
a7f3f899ff doc: update repmgrd example output 2019-03-20 12:10:31 +09:00
Ian Barwick
3ec43eda36 doc: remove references to "primary_visibility_consensus" 
Feature remains experimental.
v4.3.0rc2 		2019-03-18 17:43:16 +09:00
Ian Barwick
ce8e1cccc4 Remove outdated comment 
This was only relevant for repmgr3 and earlier; in repmgr4 the schema
is hard-coded.
 2019-03-18 15:19:25 +09:00
Ian Barwick
70bfa4c8e1 Clarify calls to check_primary_status() 
Use a constant rather than a magic number to indicate non-provision
of elapsed degraded monitoring time.
 2019-03-18 14:21:41 +09:00
Ian Barwick
f0d5ad503d doc: clarify "cluster show" error codes 2019-03-18 10:50:05 +09:00
John Naylor
b9ee57ee0f Fix assorted Makefile bugs 
1. The target additional-maintainer-clean was misspelled as
maintainer-additional-clean.

2. Add add missing clean targets, in particular sysutils.o, config.h,
repmgr_version.h, and Makefile.global. While at it, use a wildcard
for obj files.

3. Don't delete configure.

4. Remove generated file doc/version.sgml from the repo.

5. Have maintainer-clean recurse to the doc directory.
v4.3.0rc1 		2019-03-15 16:30:27 +09:00
Ian Barwick
d5d6ed4be7 Bump version 
4.3rc1
 2019-03-15 14:41:41 +09:00
Ian Barwick
f4655074ae doc: miscellaenous cleanup 2019-03-15 14:39:55 +09:00
Ian Barwick
67d26ab7e2 doc: tweak wording in event notification documentation 2019-03-15 14:08:18 +09:00
Ian Barwick
70a7b45a03 doc: add explanation of the configuration file format 2019-03-15 14:07:19 +09:00
Ian Barwick
4251590833 doc: update "connection_check_type" descriptions 2019-03-15 14:07:13 +09:00
Ian Barwick
9347d34ce0 repmgrd: optionally check upstream availability through connection attempts 2019-03-15 14:07:08 +09:00
John Naylor
feb90ee50c Correct some doc typos 2019-03-15 14:07:05 +09:00
Ian Barwick
0a6486bb7f doc: expand "standby_disconnect_on_failover" documentation 2019-03-15 14:07:01 +09:00
Ian Barwick
39443bbcee Count witness and zero-priority nodes in visibility check 2019-03-15 14:06:58 +09:00
Ian Barwick
fc636b1bd2 Ensure witness node sets last upstream seen time 2019-03-15 14:06:55 +09:00
Ian Barwick
048bad1c88 doc: fix option name typo 2019-03-15 14:06:51 +09:00
Ian Barwick
4528eb1796 doc: expand "failover_validate_command" documentation 2019-03-15 14:06:37 +09:00
Ian Barwick
169c9ccd32 repmgrd: improve logging output when executing "failover_validate_command" 2019-03-15 14:06:34 +09:00
Ian Barwick
5f92fbddf2 doc: various updates 2019-03-15 14:06:30 +09:00
Ian Barwick
617e466f72 doc: merge repmgrd witness server description into failover section 2019-03-13 16:19:41 +09:00
Ian Barwick
435fac297b doc: merge repmgrd split network handling description into failover section 2019-03-13 16:19:37 +09:00
Ian Barwick
4bc12b4c94 doc: merge repmgrd monitoring description into operating section 2019-03-13 16:19:33 +09:00
Ian Barwick
91234994e2 doc: merge repmgrd degraded monitoring description into operation section 2019-03-13 16:19:30 +09:00
Ian Barwick
ee9da30f20 doc: merge repmgrd notes into operation documentation 2019-03-13 16:19:27 +09:00
Ian Barwick
2e67bc1341 doc: merge repmgrd pause documentation into overview 2019-03-13 16:19:24 +09:00
Ian Barwick
18ab5cab4e doc: initial repmgrd doc refactoring 2019-03-13 16:19:20 +09:00
Ian Barwick
60bb4e9fc8 doc: update repmgrd configuration documentation 2019-03-13 16:19:17 +09:00
Ian Barwick
52bee6b98d repmgrd: various minor logging improvements 2019-03-13 16:19:13 +09:00
Ian Barwick
ecb1f379f5 repmgrd: remove global variable 
Make the "sibling_nodes" local, and pass by reference where relevant.
 2019-03-13 16:19:10 +09:00
Ian Barwick
e1cd2c22d4 repmgrd: enable election rerun 
If "failover_validation_command" is set, and the command returns an error,
rerun the election.

There is a pause between reruns to avoid "churn"; the length of this pause
is controlled by the configuration parameter "election_rerun_interval".
 2019-03-13 16:19:03 +09:00
Ian Barwick
1dea6b76d9 Remove redundant struct allocation 2019-03-13 16:19:00 +09:00
Ian Barwick
702f90fc9d doc: update list of reloadable repmgrd configuration options 2019-03-13 16:18:56 +09:00
Ian Barwick
c4d1eec6f3 doc: document "failover_validation_command" 2019-03-13 16:18:53 +09:00
Ian Barwick
b241c606c0 doc: expand repmgrd configuration section 2019-03-13 16:18:50 +09:00
Ian Barwick
45c896d716 Execute "failover_validation_command" when only one standby exists 2019-03-08 15:29:17 +09:00
Ian Barwick
514595ea10 Make "failover_validation_command" reloadable 2019-03-08 15:29:12 +09:00
Ian Barwick
531194fa27 Initial implementation of "failover_validation_command" 2019-03-08 15:29:06 +09:00