Commit Graph

594 Commits

Author SHA1 Message Date
Ian Barwick
3c557ebd8e repmgrd: finalize witness failover handling 2017-11-15 13:48:25 +09:00
Ian Barwick
4efeb52cba repmgrd: synchronise repmgr.nodes table on witness server 2017-11-15 13:48:21 +09:00
Ian Barwick
60422c66f9 repmgrd: handle witness server 2017-11-15 13:48:17 +09:00
Ian Barwick
b63872afbb "witness register": set upstream_node_id to that of the primary 2017-11-15 13:48:14 +09:00
Ian Barwick
a31980b590 repmgrd: basic witness node monitoring 2017-11-15 13:48:11 +09:00
Ian Barwick
e07a3c7976 docs: add witness command reference files to file list 2017-11-15 13:48:06 +09:00
Ian Barwick
9d9a1be062 docs: add command reference for "witness (un)register" 2017-11-15 13:48:03 +09:00
Ian Barwick
8208b3f844 witness (un)register: add --dry-run mode 2017-11-15 13:48:00 +09:00
Ian Barwick
ecb8297b1f witness unregister: enable execution when witness server is down
Also add help output for "repmgr witness --help".
2017-11-15 13:47:54 +09:00
Ian Barwick
1553596f84 repmgr: minor fix to "repmgr standby --help" output 2017-11-15 13:47:52 +09:00
Ian Barwick
022d9c58c2 Add "witness unregister" functionality 2017-11-15 13:47:48 +09:00
Ian Barwick
a6cc4d80f0 Add "witness register" functionality 2017-11-15 13:47:45 +09:00
Ian Barwick
7fffe3ed96 witness: initial code framework 2017-11-15 13:47:41 +09:00
Ian Barwick
9b93a595f5 docs: add some more index entries 2017-11-14 20:55:37 +09:00
Ian Barwick
c34e08b802 docs: document "passfile" configuration file parameter 2017-11-14 20:53:26 +09:00
Ian Barwick
eb14bb58c6 Add configuration file "passfile"
This will enable a custom .pgpass to be included in "primary_conninfo"
(provided it's supported by the libpq version on the standby).
2017-11-14 19:30:25 +09:00
Ian Barwick
aa28069d8b docs: update release notes
Add note about changes to password handling.1
2017-11-14 18:47:39 +09:00
Ian Barwick
a1e272f64c Update extension SQL 2017-11-13 10:02:46 +09:00
Ian Barwick
9908a9c662 repmgrd: detect role change from primary to standby
If repmgrd is monitoring a primary which is taken off-line, then later
restored as a standby, detect this change and resume monitoring
in standby node.

Addresses GitHub #338.
2017-11-10 17:19:30 +09:00
Ian Barwick
aa089820ab repmgrd: check shared library is loaded
If this isn't the case, "repmgrd" will appear to run but not handle
failover correctly.

Address GitHub #337.
2017-11-10 14:35:17 +09:00
Ian Barwick
0230bafae1 repmgrd: updates related to node_id handling 2017-11-10 12:07:31 +09:00
Ian Barwick
de577adc67 repmgrd: catch corner cases where monitoring data is not available 2017-11-09 22:27:09 +09:00
Ian Barwick
fed17d49e3 repmgrd: ensure shmem is reinitialised after a restart 2017-11-09 19:31:21 +09:00
Ian Barwick
d80763f974 repmgrd: misc fixes 2017-11-09 19:31:16 +09:00
Ian Barwick
331e982bdb repmgrd: fix priority/node_id tie-break check 2017-11-09 19:31:12 +09:00
Ian Barwick
4ca7e6a6bf repmgrd: remove unneeded functions 2017-11-09 19:31:08 +09:00
Ian Barwick
6ac6e0733a repmgrd: simplify the candidate selection logic
All disconnected nodes will be in a static, known state, so as long as
each node has the same meta-information (repmgr.nodes) and is able
to retrieve the last receive LSN of the other nodes, it is possible
for each node to independently determine the best promotion candidate,
thereby reaching consensus without an explicit "voting" process.
2017-11-09 19:31:04 +09:00
Ian Barwick
79d21b516b repmgrd: fixes to failover handling
get_new_primary() returns NULL if no notification for the new primary has
been received, but the code was expecting it to return UNKNOWN_NODE_ID,
which was causing repmgrd to prematurely drop out of the new primary
detection loop if no notification had been received by the time the loop
started.

Also store the electoral term as a single row, single column table,
to ensure that all repmgrds see the same turn. It is then bumped
by the winning node after it gets promoted.

Various logging improvements.
2017-11-08 14:28:08 +09:00
Ian Barwick
7232187f4d Ensure shared memory functions handle NULL parameters correctly 2017-11-08 12:19:07 +09:00
Ian Barwick
fe98270b3f Update .gitignore
Ignore output from "make installcheck"
2017-11-08 12:09:33 +09:00
Ian Barwick
5a3e20fc38 README: update links to https versions 2017-11-08 12:07:35 +09:00
Ian Barwick
4ef2b111da Fix lock acquisition in shared memory functions 2017-11-08 11:55:08 +09:00
Ian Barwick
97471626b4 Update repmgr.conf.sample 2017-11-02 17:43:03 +09:00
Ian Barwick
4bd236b64c docs: fix example in BDR section 2017-11-02 11:23:41 +09:00
Ian Barwick
615dd2ecf4 docs: tweak Markdown URL formatting 2017-11-01 10:58:23 +09:00
Ian Barwick
1c1887f9cc docs: update links to repmgr 4.0 documentation 2017-11-01 10:50:22 +09:00
Ian Barwick
d3f11a640d docs: update copyright info 2017-11-01 09:35:57 +09:00
Ian Barwick
2341da7a06 docs: convert command reference sections to <refentry> format
Note that most entries still need a bit more tidying up, consistent structuring,
provision of more examples etc.
2017-10-31 11:27:13 +09:00
Ian Barwick
2c468d64fb "standby follow": get upstream record before server restart, if required
The standby may not always be available for connections right after it's
restarted, so attempting to connect and get the node's upstream record
after the restart may fail. Record is now retrieved before the restart.

Addresses GitHub #333.
2017-10-27 16:30:14 +09:00
Ian Barwick
9d9b74d740 docs: add sample output to "standby follow" and "standby promote" 2017-10-27 15:03:34 +09:00
Ian Barwick
a90d4419a6 docs: add note about building docs 2017-10-27 10:44:16 +09:00
Ian Barwick
68756c79f3 Fix typo 2017-10-27 09:50:48 +09:00
Ian Barwick
8ad081e7b5 docs: finalize conversion of existing BDR repmgr documentation 2017-10-26 18:52:35 +09:00
Ian Barwick
6b76704817 Initial conversion of existing BDR repmgr documentation 2017-10-26 16:29:40 +09:00
Ian Barwick
c03c509e73 docs: update configuration documentation 2017-10-26 16:11:17 +09:00
Ian Barwick
d9db4f6c45 repmgr node rejoin: add --dry-run option 2017-10-25 11:01:58 +09:00
Ian Barwick
c89d59fe96 Improve trim() function
Did not cope well with trailing spaces or entirely blank strings.
2017-10-24 15:34:43 +09:00
Ian Barwick
02b6d3748b Docs: update "repmgr cluster show" 2017-10-24 13:48:38 +09:00
Ian Barwick
7c3abe28b9 Standardize terminology on "primary" (in place of "master") 2017-10-24 13:42:50 +09:00
Ian Barwick
a39b8ccc2d --dry-run available for "node rejoin" 2017-10-23 10:40:21 +09:00