pgpool2.git / summary / log / commit / refs

commit    f9149dd4992eb6cbbbdf5d8a3f0a00ef2c0f3071
Author:   Tatsuo Ishii <ishii@postgresql.org>
Date:     Fri Jun 22 08:27:16 2018 +0000

    Start health check process at failback.
    
    Health check process will not start if a backend node is in down
    status when Pgpool-II starts.  However when the node fails back,
    health check should start so that it can detects the failure of the
    node.
    
    Per bug 407.


 src/main/pgpool_main.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/main/pgpool_main.c b/src/main/pgpool_main.c
index 619ae7be6..08e60c47c 100644
--- a/src/main/pgpool_main.c
+++ b/src/main/pgpool_main.c
@@ -2094,6 +2094,19 @@ static void failover(void)
 					 BACKEND_INFO(node_id).backend_hostname,
 					 BACKEND_INFO(node_id).backend_port)));
 
+			/* Fork health check process if needed */
+			for (i=0;i<NUM_BACKENDS;i++)
+			{
+				if (health_check_pids[i] == 0)
+				{
+					ereport(LOG,
+							(errmsg("start health check process for host %s(%d)",
+									BACKEND_INFO(node_id).backend_hostname,
+									BACKEND_INFO(node_id).backend_port)));
+
+					health_check_pids[i] = worker_fork_a_child(PT_HEALTH_CHECK, do_health_check_child, &i);
+				}
+			}
 		}
 		else if (reqkind == PROMOTE_NODE_REQUEST)
 		{


[parent: 691cc056c60f]