die on error! -- Alex

[rrdtool.git] / NEWS

diff --git a/NEWS b/NEWS
index 2eb99b4..9b0b480 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -5,15 +5,48 @@ Major Changes between 1.0.x and 1.2.x
 Graphing
 --------
 
 Graphing
 --------
 

+* rewritten graphics generation based on libart.
+  - anti-aliased output
+  - alpha transparency support
+  - truetype fonts
+ 
+* additional graphics formats: EPS, PDF, SVG
+
+* extended multi-part documentation
+
+* VDEF support; define and use variables.  Find, and use, the
+  maximum rate seen by rrdtool; compute and show the average
+
+* Sliding window (trend) analysis
+  Compute a smoother average, for instance over the last 6 CDPs
+
+* percentile (95th or other)
+  Remove peaks, 95 percent of all rates are at or below the
+  returned value
+

 Logging
 -------
 Logging
 -------

-* In addition to the PNG format, rrdtool
-  can produce output in SVN, EPS and PDF format.
+* a second logging interface: rrdtool updatev
+  Verbose updating of the database; show CPDs being created
+
+* Aberrant Behavior Detection with Holt-Winters Forecasting
+  Compare current data with expected data, detect and log when
+  the rates are outside expected levels
+
+* COMPUTE data type for artificial data-sources calculating their
+  input using RPN math and data from the other data-sources.
+ 
+Incompatibilities
+-----------------
+* Colons in COMMENT arguments to rrdtool graph must be escaped with a backslash
+
+* the --alt-y-mrtg option is gone or rather since 1.2.7 it is back but
+  without functionality.

 
 Behind the Scenes
 -----------------
 * In order to support Holt-Winters and Calculated Datasources,
 
 Behind the Scenes
 -----------------
 * In order to support Holt-Winters and Calculated Datasources,

-  the rrdtool dataformat has changed. While the new version of rrdtool can
+  the rrdtool data format has changed. While the new version of rrdtool can

   read files created with rrdtool 1.0.x. It is not possible to read files
   created by rrdtool-1.2.x with rrdtool-1.0.x
 
   read files created with rrdtool 1.0.x. It is not possible to read files
   created by rrdtool-1.2.x with rrdtool-1.0.x
 


@@ -22,68 +55,4 @@ Behind the Scenes
   of the cgi library most things required by rrdtool will be found on every recent
   system.
 
   of the cgi library most things required by rrdtool will be found on every recent
   system.
 

-
-  Configure and Makefiles and accordingly.
-
-2002/03/26 Peter Speck <speck@ruc.dk>
-  Contribution of an svg output routine for the new gfx graphing part
-
-2002/03/23 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
-  Several visible changes made to rrd_graph
-  * Pie chart support workable
-  * Elements that are not used do not take up space on the img
-  * Hack for the missing rotated text (see --vertical-label)
-  * Tiny boxes in front of labels now scale with the text
-
-2002/01/15 Tobias Oetiker <tobi@oetiker.ch>
-  The BIG graph update
-  * Replace libgd with libart
-  * Added freetype
-  * Updated zlib and libpng
-  * rrd_gfx.c intrduced as libart wrapper
-  * LINE takes now a float as argument
-  * RRDtool uses truetype for fonts
-  * thanks to libart there is now full alpha transparenc
-    and antialiasing.
-  * the new option --font lets customize the font
-    and size for various graph elements
-  * Updated to -> libtool 1.4.2 automake 2.12 autoconf 2.52
-  * new --zoom commandline option for zoom ans shrinking
-  ---- Still missing is rotatet text for the yaxis description
-  ---- Still missing is tab support in the text rendere
-  ---- Still missing is autoconf support for a default truetype font
-
-2001/07/26 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
-  Added TOTAL to the VDEF functions.
-
-2001/07/19 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
-  VDEF support.  This is a variable containing one value
-  and a time component.  This type of variable can hold
-  the result of a function over a complete time series
-  of data (DEF or CDEF) such as the maximum seen, and when.
-
-2001/03/10 Jake Brutlag <jakeb@corp.webtv.net>
-  Support for COMPUTE data sources (CDEF data sources). Removes the RPN
-  parser and calculator from rrd_graph and puts then in a new file,
-  rrd_rpncalc.c. Changes to core files rrd_create and rrd_update. Some
-  clean-up of aberrant behavior stuff, including a bug fix. 
-  Documentation update (rrdcreate.pod, rrdupdate.pod). Change xml format.
-  
-2001/03/07 Tobias Oetiker <oetiker@ee.ethz.ch> 
-  Integrated complete rewrite
-  of rrdgraph documentation by Alex van den Bogaerdt
-  <alex@ergens.op.Het.Net>. This also contains info on his planned
-  changes to the rrdgraph module
-
-2001/03/02 Tobias Oetiker <oetiker@ee.ethz.ch>
-  Added Aberrant Patch from Jake Brutlag <jakeb@microsoft.com>
-  From now one, new rrd files use version tag 0002. They can
-  NOT be read by the old 1.0.x RRDtools. 
- 
-  Jake:
-  Aberrant Behavior Detection support. A brief overview added to
-  rrdtool.pod.  Major updates to rrd_update.c, rrd_create.c. Minor update to
-  other core files.  Updated documentation: rrdcreate.pod, rrdgraph.pod,
-  rrdtune.pod.  This is backwards compatible (i.e. new tool can read and will
-  leave the binary header unchanged for old files).
-  See http://cricket.sourceforge.net/aberrant/rrd_hw.htm
+* Memory Mapped IO support for faster logging.