From: Peter Stamfest <peter@stamfest.at>
Date: Thu, 4 Sep 2014 06:50:42 +0000 (+0200)
Subject: fetch data from cached with full double precision to make sure results
X-Git-Tag: v1.5.0-rc1~44^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F534%2Fhead;p=thirdparty%2Frrdtool-1.x.git

fetch data from cached with full double precision to make sure results
obtained with and without rrdcached are the same.
This might be deemed to high a cost, because the line protocol now carries
up to 70% more data
---

diff --git a/src/rrd_daemon.c b/src/rrd_daemon.c
index 6ff84003..0f7451d7 100644
--- a/src/rrd_daemon.c
+++ b/src/rrd_daemon.c
@@ -1735,7 +1735,7 @@ static int handle_request_fetch (HANDLER_PROTO) /* {{{ */
     linebuf_fill = 0;
     for (i = 0; i < ds_cnt; i++)
     {
-      snprintf (tmp, sizeof (tmp), " %0.10e", *data_ptr);
+      snprintf (tmp, sizeof (tmp), " %0.17e", *data_ptr);
       tmp[sizeof (tmp) - 1] = 0;
       SSTRCAT (linebuf, tmp, linebuf_fill);