RRDTOOL NEWS
============
+
+#####################################
Major Changes between 1.2.x and 1.3.x
+-------------------------------------
+
+RRdtool dump / restore Incompatibilities
+----------------------------------------
+rrdtool dump 1.3 does emit completely legal xml. Basically this means that
+it contains an xml header and a DOCTYPE definition. Unfortunately this
+causes older versions of rrdtool restore to be unhappy.
-File access methods
+To restore a new dump with ann old rrdtool restore version, either remove
+the xml header and the doctype by hand (both on the first line of the dump)
+or use rrdtool dump --no-header.
+
+NEW File access methods (Bernhard Fischer)
-------------------
* introduced file-accessor functions rrd_read/rrd_seek/rrd_write
* implemented full mmap-based file access with madvise hints for improved
disk
* implemented optional full file-descriptor access instead of FILE* access
-Graphing
+NEW Graphing (Tobi Oetiker)
--------
* libart has been replaced by cairo/pango
* pango markup is supported
-* full gridfitting
+* full gridfitting
+* --graph-render-mode=mono for non antialiased graphing
+* --font-render-mode=mono for non antialiased fonts
+* fonts come through fontconfig, use the Pango fontnameing
+ scheme -> 'Times 20' ... it is not possible to use
+ truetype fonts directly anymore.
+* Tabs are position independent.
+* TRENDNAN filter that ignores NAN values while caculating the TREND data. (Timo Stripf)
+* --full-size-mode to specify the outer border of the image and not just of the graphing canvas (Matthew Chambers)
+* TEXTALIGN command to alter default text alignment behaviour
+* C API in-memory graphing with rrd_graph_v (Evan Miller)
+* draw dashed lines in graphs (Thomas Gutzler)
+* new interface graphv which returns inforamation using the rrd_info
+ interface (Tobi Oetiker and Mark Plaksin)
+* improved horizontal grid. Have a bit more grid lines and y-axis labels
+ while keeping them fahr enough apart to not run into each other.
+
+NEW Forecasting (Evan Miller)
+-----------
+* the new MHWPREDICT consolidation function uses a variation of the Holt-Winters
+ method. It is a drop-in replacement for HWPREDICT, and is better suited for
+ data whose seasonal variations grow or shrink in proportion to the average.
+
+* If you create an RRD with the new MHWPREDICT function, the resulting
+ rrdfile will be version 0004 and can only be used in rrdtool 1.3.
+
+Rewrites
+--------
+* rrd_restore now uses libxml for parsing which makes things much more
+ tolerant towards xml variations. The old code could mostly just parse the
+ xml as it was output by rrdtool dump. See also: 'incompatibilities' at the
+ top of this document. (by Florian octo Forster)
+
+* rrd_update rewritten to make it more modular. Fixed two longstanding
+ HW bugs in the process (Evan Miller)
+
+Internationalization (Takao Fujiwara and Tobi Oetiker)
+--------------------
+* The help output by rrdtool has been internationalized. There are no real
+ translations included with rrdtool yet, contributions are welcome.
+* The internationalization will only be compiled if libintl and friends are
+ available on your system. Use the configure option --disable-libintl if
+ you want to disable this feature
+
+Language Bindings
+-----------------
+* ruby rrd_fetch will return step as a last property -- Mike Perham
-RRDTOOL NEWS
-============
-Major Changes between 1.0.x and 1.2.x
+* python rrdtool.info does now conform with the data structure returned
+ by the other language bindings. This is incompatible with the
+ previous (broken) version --tobi
+
+* python bindings got updatev support --tobi
+* ruby, perl, python bindings support the new graphv interface --tobi
+
+Locale Independent Numeric Input
+--------------------------------
+* Regardles of locale you are in, rrdtool always expects input to be numbers
+ (LC_NUMERIC) in C or POSIX locale for numbers. (not 1,1 but 1.1) this is
+ necessary to make things like RPN work as it uses , as a separator.
+
+######################################################################################
+Major Changes between 1.0.x and 1.2.x
+======================================================================================
Graphing
--------
projects / rrdtool.git / blobdiff