write_graphite: Decrease a buffer size.

If the buffer is too large, it is possible that the message cannot be
send using the send buffer, leading to a failed assertion in
wg_send_message().

Fixes Github issue #226. Thanks to @bwhaley for reporting this.

diff --git a/src/write_graphite.c b/src/write_graphite.c
index 2ae30ef..4eb0025 100644 (file)
--- a/src/write_graphite.c
+++ b/src/write_graphite.c
@@ -340,7 +340,7 @@ static int wg_send_message (char const *message, struct wg_callback *cb)
 static int wg_write_messages (const data_set_t *ds, const value_list_t *vl,
         struct wg_callback *cb)
 {
-    char buffer[4096];
+    char buffer[WG_SEND_BUF_SIZE];
     int status;
 
     if (0 != strcmp (ds->type, vl->type))