From: Sebastian Harl Date: Mon, 1 Sep 2014 18:36:22 +0000 (+0200) Subject: ReleaseNotes: Added 0.4.0 release. X-Git-Tag: sysdb-0.4.0~1 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=cdbe3142cfedefe02f97296c13f05b2a5489d69d;p=sysdb.git ReleaseNotes: Added 0.4.0 release. --- diff --git a/ReleaseNotes b/ReleaseNotes index 3227a66..d37d420 100644 --- a/ReleaseNotes +++ b/ReleaseNotes @@ -19,6 +19,60 @@ +Version 0.4.0, Release Date: 2014-09-01 +--------------------------------------- + + This release features support for metrics and transparent access to a + backend's time-series data. Some backward-incompatible changes were applied + to some query commands for more consistency. + + * build system: + - Added checks for format strings and arguments. + - Changed configure option for collectd::unixsock to + --enable-collectd-unixsock. + * core: + - Added support for “metric” objects which may be assigned to a host. + - Introduced support for handling time-series data: added new data + structures describing time-series data and a new type of plugins called + “time-series fetchers” which are used to access time-series + information. + * store: + - Fixed a memory leak. + - Apply (very) simple optimizations to lookup expressions. + - Added support for metrics and their “data-stores” (describing how to + access the actual data references by a metric). + - Added support for querying time-series data through the newly + introduced “time-series fetcher” plugins. + * frontend: + - Fixed a bug that might have caused reading too much data from the + connection buffer in certain situations. + * query language: + - The ‘MATCHING’ clause is now optional in ‘LOOKUP’ queries. + - The ‘LIST’ and ‘FETCH’ commands support ‘FILTER’ clauses as well. + - ‘LIST’ / ‘FETCH’ were changed to ‘LIST hosts’ / ‘FETCH host’. + - Added the ‘TIMESERIES’ command to query arbitrary time-series which + fetches time-series data from a backend's data-store for a given period + of time. + - Added support for date/time values. + - Added support for single quotes in string values: two adjacent single + quotes may be used to specify a single quote. + * documentation: + - Documented the frontend protocol in frontend/proto.h. + - Documented changes to the query language and new / updated plugins. + - Documented all supported data types. + + Backends: + * collectd::unixsock: + - The plugin now uses metrics in place of services. + - New config options ‘TimeseriesBackend’ and ‘TimeseriesBaseURL’ to + specify access to time-series, currently limited to ‘rrdtool’ and + ‘rrdcached’ access. + + Plugins: + * timeseries::rrdtool: + - New plugin adding support to fetch time-series from local RRD files. + - Supports flushing of values in RRDCacheD. + Version 0.3.0, Release Date: 2014-08-01 ---------------------------------------