From: Pavel Rochnyack <pavel2000@ngs.ru>
Date: Fri, 19 Oct 2018 10:37:40 +0000 (+0700)
Subject: statsd: Set SO_REUSEADDR on listening socket
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=27123fbe87f32ccd7e489d2b47ebbb72a04a9c5a

statsd: Set SO_REUSEADDR on listening socket

Closes: #1126
Closes: #1187
---

diff --git a/src/statsd.c b/src/statsd.c
index 6fbfd181..1558ec84 100644
--- a/src/statsd.c
+++ b/src/statsd.c
@@ -498,6 +498,14 @@ static int statsd_network_init(struct pollfd **ret_fds, /* {{{ */
       continue;
     }
 
+    /* allow multiple sockets to use the same PORT number */
+    int yes = 1;
+    if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1) {
+      ERROR("statsd plugin: setsockopt (reuseaddr): %s", STRERRNO);
+      close(fd);
+      continue;
+    }
+
     getnameinfo(ai_ptr->ai_addr, ai_ptr->ai_addrlen, str_node, sizeof(str_node),
                 str_service, sizeof(str_service),
                 NI_DGRAM | NI_NUMERICHOST | NI_NUMERICSERV);
@@ -525,6 +533,7 @@ static int statsd_network_init(struct pollfd **ret_fds, /* {{{ */
     memset(tmp, 0, sizeof(*tmp));
     tmp->fd = fd;
     tmp->events = POLLIN | POLLPRI;
+    INFO("statsd plugin: Listening on [%s]:%s.", str_node, str_service);
   }
 
   freeaddrinfo(ai_list);