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"node rejoin": actively check for node to rejoin cluster

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Previously repmgr was relying on whatever command was configured to
start PostgreSQL to determine whether the node being rejoined had
started correctly. However it's preferable to actively poll the upstream
to confirm it has restarted and actually attached as a standby before
confirming success of the "node rejoin" action.

This can be overridden with the -W/--no-wait option.

(Note that for consistency with other PostgreSQL utilities, the
short form of the --wait option is now "-w"; this is currently
only used in "repmgr standby follow".)

Also update "repmgr node rejoin" documentation with a list of supported
options, and add some useful index entries for "pg_rewind".

Implements GitHub #415.
This commit is contained in:
Ian Barwick
2018-04-03 09:13:32 +09:00
committed by Ian Barwick
parent 938692c169
commit a3f371b8c0
8 changed files with 234 additions and 20 deletions
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4
repmgr-client.h
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@@ -86,6 +86,7 @@
#define OPT_REPL_CONN 1037
#define OPT_REMOTE_NODE_ID 1038
#define OPT_RECOVERY_CONF_ONLY 1039
#define OPT_NO_WAIT 1040
/* deprecated since 3.3 */
#define OPT_DATA_DIR 999
@@ -104,7 +105,8 @@ static struct option long_options[] =
{"dry-run", no_argument, NULL, OPT_DRY_RUN},
{"force", no_argument, NULL, 'F'},
{"pg_bindir", required_argument, NULL, 'b'},
{"wait", no_argument, NULL, 'W'},
{"wait", no_argument, NULL, 'w'},
{"no-wait", no_argument, NULL, 'W'},
/* connection options */
{"dbname", required_argument, NULL, 'd'},