From: Pavel Rochnyack <pavel2000@ngs.ru>
Date: Sun, 17 Jun 2018 09:10:54 +0000 (+0700)
Subject: redis plugin: Check for / report connection errors
X-Git-Tag: collectd-5.9.0~178^2~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3e2d79e837b165fceeacb4b1b8197af314b6df0;p=thirdparty%2Fcollectd.git

redis plugin: Check for / report connection errors
---

diff --git a/src/redis.c b/src/redis.c
index 68158ed20..9568fc57c 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -423,8 +423,13 @@ static int redis_read(void) /* {{{ */
 
     rh = redisConnectWithTimeout((char *)rn->host, rn->port, rn->timeout);
     if (rh == NULL) {
-      ERROR("redis plugin: unable to connect to node `%s' (%s:%d).", rn->name,
-            rn->host, rn->port);
+      ERROR("redis plugin: can't allocate redis context");
+      continue;
+    }
+    if (rh->err) {
+      ERROR("redis plugin: unable to connect to node `%s' (%s:%d): %s.",
+            rn->name, rn->host, rn->port, rh->errstr);
+      redisFree(rh);
       continue;
     }