pgpool2.git / summary / log / commit / refs

commit    ed14bc75f096e259f2193557df12b6e06fd2f1d3
Author:   Tatsuo Ishii <ishii at sraoss.co.jp>
Date:     Sat Nov 14 11:36:35 2009 +0000

    Limit listen(2)'s backlog parameter to num_init_children*2 at largest.
    This is almost same algorithm as PostgreSQL.
    I hope pgpool-II does not consume so much system resource any more...


 main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 7b2ac126f..ab047ee35 100644
--- a/main.c
+++ b/main.c
@@ -853,6 +853,7 @@ static int create_inet_domain_socket(const char *hostname, const int port)
 	int status;
 	int one = 1;
 	int len;
+	int backlog;
 
 	fd = socket(AF_INET, SOCK_STREAM, 0);
 	if (fd == -1)
@@ -902,7 +903,11 @@ static int create_inet_domain_socket(const char *hostname, const int port)
 		myexit(1);
 	}
 
-	status = listen(fd, PGPOOLMAXLITSENQUEUELENGTH);
+	backlog = pool_config->num_init_children * 2;
+	if (backlog > PGPOOLMAXLITSENQUEUELENGTH)
+		backlog = PGPOOLMAXLITSENQUEUELENGTH;
+
+	status = listen(fd, backlog);
 	if (status < 0)
 	{
 		pool_error("listen() failed. reason: %s", strerror(errno));


[parent: 0c93c0044ea4]