github/repmgr
1
0
Fork 0
mirror of https://github.com/EnterpriseDB/repmgr.git synced 2026-03-22 22:56:29 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

Added function to show nodes with actual roles: repmgr cluster show

Browse Source
This commit is contained in:
Carlo Ascani
2011-08-08 18:39:51 +02:00
committed by Marco Nenciarini
parent 0b5d2418df
commit 61c31eeb0c
1 changed files with 65 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
repmgr.c
View File

@@ -47,6 +47,7 @@
#define STANDBY_PROMOTE 4
#define STANDBY_FOLLOW 5
#define WITNESS_CREATE 6
#define CLUSTER_SHOW 7
static bool create_recovery_file(const char *data_dir);
static int test_ssh_connection(char *host, char *remote_user);
@@ -63,6 +64,7 @@ static void do_standby_clone(void);
static void do_standby_promote(void);
static void do_standby_follow(void);
static void do_witness_create(void);
static void do_cluster_show(void);
static void usage(void);
static void help(const char *progname);
@@ -180,6 +182,7 @@ main(int argc, char **argv)
* MASTER REGISTER |
* STANDBY {REGISTER | CLONE [node] | PROMOTE | FOLLOW [node]} |
* WITNESS CREATE
* CLUSTER SHOW
*
* the node part is optional, if we receive it then we shouldn't
* have received a -h option
@@ -188,7 +191,8 @@ main(int argc, char **argv)
{
server_mode = argv[optind++];
if (strcasecmp(server_mode, "STANDBY") != 0 && strcasecmp(server_mode, "MASTER") != 0 &&
strcasecmp(server_mode, "WITNESS") != 0)
strcasecmp(server_mode, "WITNESS") != 0 &&
strcasecmp(server_mode, "CLUSTER") != 0 )
{
usage();
exit(ERR_BAD_CONFIG);
@@ -215,6 +219,11 @@ main(int argc, char **argv)
else if (strcasecmp(server_cmd, "FOLLOW") == 0)
action = STANDBY_FOLLOW;
}
else if (strcasecmp(server_mode, "CLUSTER") == 0)
{
if( strcasecmp(server_cmd, "SHOW") == 0)
action = CLUSTER_SHOW;
}
else if (strcasecmp(server_mode, "WITNESS") == 0)
if (strcasecmp(server_cmd, "CREATE") == 0)
action = WITNESS_CREATE;
@@ -336,6 +345,9 @@ main(int argc, char **argv)
case WITNESS_CREATE:
do_witness_create();
break;
case CLUSTER_SHOW:
do_cluster_show();
break;
default:
usage();
exit(ERR_BAD_CONFIG);
@@ -345,6 +357,53 @@ main(int argc, char **argv)
return 0;
}
static void
do_cluster_show(void)
{
PGconn *conn;
PGresult *res;
char sqlquery[QUERY_STR_LEN];
char node_role[MAXLEN];
int i;
/* We need to connect to check configuration */
log_info(_("%s connecting to database\n"), progname);
conn = establishDBConnection(options.conninfo, true);
sqlquery_snprintf(sqlquery, "SELECT conninfo FROM %s.repl_nodes;", repmgr_schema);
res = PQexec(conn, sqlquery);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_err(_("Can't get nodes informations, have you regitered them?\n%s\n"), PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
PQfinish(conn);
printf("Role | Connection String \n");
for (i = 0; i < PQntuples(res); i++)
{
conn = establishDBConnection(PQgetvalue(res, i, 0), false);
if (PQstatus(conn) != CONNECTION_OK)
strcpy(node_role, " FAILED");
else if (is_standby(conn))
strcpy(node_role, " standby");
else
strcpy(node_role, "* master");
printf("%-10s", node_role);
printf("| %s\n", PQgetvalue(res, i, 0));
PQfinish(conn);
}
PQclear(res);
}
static void
do_master_register(void)
{
@@ -1543,6 +1602,7 @@ help(const char *progname)
printf(_(" %s [OPTIONS] master {register}\n"), progname);
printf(_(" %s [OPTIONS] standby {register|clone|promote|follow}\n"),
progname);
printf(_(" %s [OPTIONS] cluster show\n"), progname);
printf(_("\nGeneral options:\n"));
printf(_(" --help show this help, then exit\n"));
printf(_(" --version output version information, then exit\n"));
@@ -1570,6 +1630,7 @@ help(const char *progname)
printf(_(" standby promote - allows manual promotion of a specific standby into a "));
printf(_("new master in the event of a failover\n"));
printf(_(" standby follow - allows the standby to re-point itself to a new master\n"));
printf(_(" cluster show - print node informations\n"));
}
@@ -1831,6 +1892,9 @@ check_parameters_for_action(const int action)
case WITNESS_CREATE:
/* allow all parameters to be supplied */
break;
case CLUSTER_SHOW:
/* allow all parameters to be supplied */
break;
}
return ok;