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Some infrastructure for supporting cascading replication

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Does not fully work yet.
This commit is contained in:
Ian Barwick
2015-01-15 15:37:09 +09:00
parent d141d2a8aa
commit 2ae27521a3
3 changed files with 96 additions and 15 deletions
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29
repmgrd.c
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@@ -384,12 +384,15 @@ main(int argc, char **argv)
case WITNESS_MODE:
case STANDBY_MODE:
/* I need the id of the primary as well as a connection to it */
/* We need the node id of the upstream server as well as a connection to it */
log_info(_("%s Connecting to primary for cluster '%s'\n"),
progname, local_options.cluster_name);
primary_conn = get_master_connection(my_local_conn,
local_options.cluster_name,
&primary_options.node, NULL);
if (primary_conn == NULL)
{
terminate(ERR_BAD_CONFIG);
@@ -398,7 +401,7 @@ main(int argc, char **argv)
check_cluster_configuration(my_local_conn);
check_node_configuration();
if (reload_config(config_file, &local_options))
if (0 && reload_config(config_file, &local_options))
{
PQfinish(my_local_conn);
my_local_conn = establish_db_connection(local_options.conninfo, true);
@@ -627,11 +630,19 @@ standby_monitor(void)
ret;
bool did_retry = false;
PGconn *upstream_conn;
int upstream_node_id;
upstream_conn = get_upstream_connection(my_local_conn,
local_options.cluster_name,
&upstream_node_id, NULL);
/*
* Check if the master is still available, if after 5 minutes of retries
* we cannot reconnect, try to get a new master.
*/
check_connection(primary_conn, "master"); /* this take up to
check_connection(upstream_conn, "master"); /* this take up to
* local_options.reconnect_atte
* mpts *
* local_options.reconnect_intv
@@ -643,10 +654,10 @@ standby_monitor(void)
terminate(1);
}
if (PQstatus(primary_conn) != CONNECTION_OK)
if (PQstatus(upstream_conn) != CONNECTION_OK)
{
PQfinish(primary_conn);
primary_conn = NULL;
PQfinish(upstream_conn);
upstream_conn = NULL;
if (local_options.failover == MANUAL_FAILOVER)
{
@@ -695,12 +706,14 @@ standby_monitor(void)
}
}
PQfinish(upstream_conn);
/* Check if we still are a standby, we could have been promoted */
do
{
log_debug("standby_monitor() - checking if still standby\n");
log_debug("standby_monitor() - checking if still standby\n"); // ZZZ
ret = is_standby(my_local_conn);
log_debug("ret is %i", ret); // ZZZ
switch (ret)
{
case 0: