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Disallow witness on primary cluster

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This commit is contained in:
John Naylor
2019-05-27 23:41:51 +08:00
committed by Ian Barwick
parent d1e708454f
commit 519df66197
1 changed files with 18 additions and 5 deletions
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23
repmgr-action-witness.c
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@@ -173,11 +173,24 @@ do_witness_register(void)
exit(ERR_BAD_CONFIG);
}
/*
* TODO: sanity check witness node is not part of main cluster; we could
* add a random application_name to the respective connections,
* and do a simple check of pg_stat_activity
*/
/* Sanity check witness node is not part of main cluster. */
if (PQserverVersion(primary_conn) >= 90600 &&
PQserverVersion(witness_conn) >= 90600)
{
uint64 primary_system_identifier = system_identifier(primary_conn);
uint64 witness_system_identifier = system_identifier(witness_conn);
if (primary_system_identifier == witness_system_identifier &&
primary_system_identifier != UNKNOWN_SYSTEM_IDENTIFIER)
{
log_error(_("witness node cannot be in the same cluster as the primary node"));
log_detail(_("primary id: %lu\n witness id: %lu"), primary_system_identifier, witness_system_identifier);
PQfinish(witness_conn);
PQfinish(primary_conn);
exit(ERR_BAD_CONFIG);
}
}
/* check that primary node is not a BDR node */
if (is_bdr_db_quiet(primary_conn) == true)