X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=NEWS;h=2d2abf789e59bb12c268f2dacf9fe3f8911bb480;hp=32ee7d42543c6a7d9608bc12bfe394152300030e;hb=eb44444f03424eb0a1ce61320e1fd9fe88eb26e1;hpb=2815c8a96b82730e41cebf8a5065e00666c560b8 diff --git a/NEWS b/NEWS index 32ee7d4..2d2abf7 100644 --- a/NEWS +++ b/NEWS @@ -2,7 +2,17 @@ RRDTOOL NEWS ============ Major Changes between 1.2.x and 1.3.x -File access methods +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. + +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 @@ -10,11 +20,61 @@ File access methods 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full file-descriptor access instead of FILE* access -Graphing +NEW Graphing (Tobi Oetiker) -------- * libart has been replaced by cairo/pango * pango markup is supported -* full gridfitting +* full gridfitting +* --graph-render-mode=mono for non antialiased graphing +*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) + +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 + +Misc +---- +* ruby rrd_fetch will return step as a last property -- Mike Perham + +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. RRDTOOL NEWS ============