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Add simple output for CLUSTER EVENT

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This commit is contained in:
Ian Barwick
2017-04-26 10:31:56 +09:00
parent 5041a49b66
commit 1b785d9a20
6 changed files with 156 additions and 5 deletions
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100
repmgr-client.c
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@@ -505,6 +505,7 @@ check_cli_parameters(const int action)
{
case STANDBY_UNREGISTER:
case WITNESS_UNREGISTER:
case CLUSTER_EVENT:
break;
default:
item_list_append_format(&cli_warnings,
@@ -520,6 +521,7 @@ check_cli_parameters(const int action)
{
case STANDBY_UNREGISTER:
case WITNESS_UNREGISTER:
case CLUSTER_EVENT:
if (runtime_options.node_id != UNKNOWN_NODE_ID)
{
item_list_append(&cli_warnings,
@@ -842,15 +844,104 @@ do_standby_clone(void)
static void
do_cluster_event(void)
{
puts("cluster event");
PGconn *conn;
PQExpBufferData query;
PQExpBufferData where_clause;
PGresult *res;
int i;
conn = establish_db_connection(config_file_options.conninfo, true);
initPQExpBuffer(&query);
initPQExpBuffer(&where_clause);
appendPQExpBuffer(&query,
" SELECT node_id, event, successful, \n"
" TO_CHAR( event_timestamp, 'YYYY-MM-DD HH24:MI:SS') AS timestamp, \n"
" details \n"
" FROM repmgr.events");
if (runtime_options.node_id != UNKNOWN_NODE_ID)
{
append_where_clause(&where_clause,
"node_id=%i", runtime_options.node_id);
}
if (runtime_options.event[0] != '\0')
{
char *escaped = escape_string(conn, runtime_options.event);
if (escaped == NULL)
{
log_error(_("unable to escape value provided for event"));
}
else
{
append_where_clause(&where_clause,
"event='%s'",
escaped);
pfree(escaped);
}
}
appendPQExpBuffer(&query, "\n%s\n",
where_clause.data);
appendPQExpBuffer(&query,
" ORDER BY timestamp DESC");
if (runtime_options.all == false && runtime_options.limit > 0)
{
appendPQExpBuffer(&query, " LIMIT %i",
runtime_options.limit);
}
log_debug("do_cluster_event():\n%s", query.data);
res = PQexec(conn, query.data);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_error(_("unable to execute event query:\n %s"),
PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
exit(ERR_DB_QUERY);
}
if (PQntuples(res) == 0) {
printf(_("no matching events found\n"));
PQclear(res);
PQfinish(conn);
return;
}
/* XXX improve formatting */
puts("node_id,event,ok,timestamp,details");
puts("----------------------------------");
for(i = 0; i < PQntuples(res); i++)
{
printf("%s,%s,%s,%s,%s\n",
PQgetvalue(res, i, 0),
PQgetvalue(res, i, 1),
PQgetvalue(res, i, 2),
PQgetvalue(res, i, 3),
PQgetvalue(res, i, 4));
}
PQclear(res);
PQfinish(conn);
}
/*
* Create the repmgr extension, and grant access to the repmgr
* Create the repmgr extension, and grant access for the repmgr
* user if not a superuser.
*
* Note: this should be the only place where superuser rights are required
* Note:
* This should be the only place where superuser rights are required.
* We should also consider possible scenarious where a non-superuser
* has sufficient privileges to install the extension.
*/
static
bool create_repmgr_extension(PGconn *conn)
@@ -899,8 +990,6 @@ bool create_repmgr_extension(PGconn *conn)
return true;
}
PQclear(res);
termPQExpBuffer(&query);
@@ -932,6 +1021,7 @@ bool create_repmgr_extension(PGconn *conn)
return false;
}
/* check provided superuser really is superuser */
superuser_status = PQparameterStatus(superuser_conn, "is_superuser");
if (strcmp(superuser_status, "off") == 0)
{