From: oetiker Date: Sun, 7 Jun 2009 11:16:07 +0000 (+0000) Subject: initial news X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=ff001db9686cde6b432380d162447e8ed624e857;p=rrdtool-all.git initial news git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1840 a5681a0c-68f1-0310-ab6d-d61299d08faa --- diff --git a/program/NEWS b/program/NEWS index 4d8281d5..e938c084 100644 --- a/program/NEWS +++ b/program/NEWS @@ -1,26 +1,64 @@ -RRDTOOL NEWS -============ +News for RRDtool 1.4 +==================== +$Id$ +RRD Caching Daemon (rrdcached) +------------------------------ +by Florian Forster and Kevin Brintnall -########################################## -Functional Changes between 1.3.x and 1.4.x ------------------------------------------- +The RRD Caching Daemon can dramatically improve the 'update' performance +of your system. Due to filehandling overheads, the time it takes todo one +update is virtually the same as to doing two updates in a row. -RRDcached Accelerator +The Cache Daemon intercepts rrdtool update calls, assembling multiple +updates before writing them to the actual rrd file. When calling rrdtool +graph in such a setup, the command will tell the daemon to flush out all +pending updates for the rrd files, required to draw the graph. + + +RRD Dumping and Restoring (rrdtool dump/restore) +------------------------------------------------ +by Tobi Oetiker + +The output of rrdtool dump has been adjusted to be simpler to parse by +existing xml parsers. + +The restore core has been completely re-written yet again and is now relying +on an incremental xml parser. This has the advantage that the memory +consumtion while restoring xml files is only slighly larger than the +resulting rrd file. Which is much less than the requirements of the 1.3. + +RRD Graphing functions (rrdtool graph) +-------------------------------------- +by Martin Sperl + +* VDEF PERCENTNAN (a PRECENT that ignores NAN) + +* CDEF PREDICT and PREDICTSIGMA functions for on-the-fly + data prediction without the need to modify existing rrd files as it is + required for HoltWinters. + +* LibDBI integration provides a path to read data directly of a supported + SQL database into rrdtool graph. + +Miscellaneous Changes --------------------- -tbd -RRDdump -------- -* no more spaces in output -* additional option: --header {none,xsd,dtd} +* graph legends can now be placed left, right or above the graph with the + new --legend-direction and --legend-positon placement options. + by Melchior Rabe + +* switched to using automake 1.11 which provides a 'silent' build process, + causing errors and warnings to stand out much more than before. + by Tobi Oetiker + +* switched from intltoolize to autopoint for the i18n configuration. + by Tobi Oetiker -RRDgraph --------- -* VDEF PERCENTNAN (PRECENT that ignores NAN) -* new --legend-direction and --legend-positon placement option +* lua bindings for rrdtool + by Fidelis Assis -RRDflush --------- -* instruct the rrdcached to flush all its data +* various improvements to rrd_open functions and mmap handling + by Daniel Pocock +for more detail see the CHANGES file.