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"standby follow": check node system identifiers match

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This commit is contained in:
Ian Barwick
2017-08-14 11:45:08 +09:00
parent 0f31756733
commit eabd56f3be
9 changed files with 114 additions and 37 deletions
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12
dbutils.c
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@@ -115,6 +115,7 @@ _establish_db_connection(const char *conninfo, const bool exit_on_error, const b
if (parse_success == false)
{
log_error(_("unable to pass provided conninfo string:\n %s"), errmsg);
free_conninfo_params(&conninfo_params);
return NULL;
}
@@ -155,6 +156,7 @@ _establish_db_connection(const char *conninfo, const bool exit_on_error, const b
if (exit_on_error)
{
PQfinish(conn);
free_conninfo_params(&conninfo_params);
exit(ERR_DB_CONN);
}
}
@@ -170,11 +172,13 @@ _establish_db_connection(const char *conninfo, const bool exit_on_error, const b
if (exit_on_error)
{
PQfinish(conn);
free_conninfo_params(&conninfo_params);
exit(ERR_DB_CONN);
}
}
pfree(connection_string);
free_conninfo_params(&conninfo_params);
return conn;
}
@@ -1284,6 +1288,8 @@ get_replication_info(PGconn *conn, ReplInfo *replication_info)
replication_info->last_wal_replay_lsn = parse_lsn(PQgetvalue(res, 0, 1));
strncpy(replication_info->replication_lag_time, PQgetvalue(res, 0, 3), MAXLEN);
PQclear(res);
return true;
}
@@ -1478,11 +1484,11 @@ get_replication_lag_seconds(PGconn *conn)
bool
identify_system(PGconn *replconn, t_system_identification *identification)
identify_system(PGconn *repl_conn, t_system_identification *identification)
{
PGresult *res;
res = PQexec(replconn, "IDENTIFY_SYSTEM;");
res = PQexec(repl_conn, "IDENTIFY_SYSTEM;");
if (PQresultStatus(res) != PGRES_TUPLES_OK || !PQntuples(res))
{
@@ -2406,6 +2412,8 @@ get_node_replication_stats(PGconn *conn, t_node_info *node_info)
node_info->active_replication_slots = atoi(PQgetvalue(res, 0, 3));
node_info->inactive_replication_slots = atoi(PQgetvalue(res, 0, 4));
PQclear(res);
return;
}