X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=ReleaseNotes;h=6a987133027fd2ca57647de53566d6327a08c0ab;hb=ea4c5e73f1ca6812bf89dc50c1db2767930f23e3;hp=f9e91bc5a2df2f517367429ff664b56b47871735;hpb=c77afd8880079f6e2d3abd5180c7de7c3e96270d;p=sysdb.git
diff --git a/ReleaseNotes b/ReleaseNotes
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@@ -19,6 +19,62 @@
+Version 0.3.0, Release Date: 2014-08-01
+---------------------------------------
+
+ This release includes major enhancements and new features in the SysDB store
+ which is the core of the database. Most notably, complex expressions are now
+ supported when looking up information and filters may be used to preselect
+ the information to be returned. Some backward-incompatible changes were
+ introduced in the query language to avoid potentially confusing semantics.
+
+ * sysdb: Fixed non-interactive mode when using libedit.
+ * core:
+ - Fixed weird behavior when collector callbacks were registered without
+ any plugin context information (as it would, e.g., happen when using
+ LoadPlugin instead of LoadBackend in sysdbd).
+ * store:
+ - Introduced service attributes -- similar to host attributes but
+ assigned to a service object.
+ - Don't log âvalue too oldâ messages if an updated object uses the same
+ timestamp as the old object.
+ - Switched from linked-lists to AVL trees for storing all object types to
+ reduce lookup times from O(n) to O(log n).
+ - Added infrastructure for handling and evaluating arithmetic
+ expressions and filters (see also the changes to the query language
+ below).
+ - Export various fields describing base attributes of all stored object
+ types: last_update, age, interval, and backend. These fields may be
+ used when querying the store.
+ * frontend: Include new service attributes in JSON output.
+ * query language:
+ - Added support for âIS NULLâ attribute checks matching on non-existent
+ attributes.
+ - Changed âLOOKUP ... WHEREâ queries to âLOOKUP ... MATCHINGâ to avoid
+ confusion with SQL semantics.
+ - Switched from â.nameâ to ââ in MATCHING clauses, thus, no
+ longer shadowing attributes called ânameâ.
+ - Added support for arithmetic expressions in places that used simple
+ data values before. Arithmetic expressions support addition,
+ subtraction, multiplication, division, modulo, and concatenation
+ operations. The expressions may be based on constant values or
+ queryable fields of the stored objects (specified as â:last_updateâ,
+ â:ageâ, â:intervalâ, and â:backendâ).
+ - Added âFILTERâ support to âLOOKUPâ queries. Filters are conditional
+ expressions which may optionally be used to limit the query and the
+ result to object (of any type) matching the filter condition.
+ - Added support to specify date and time values.
+ * utils:
+ - avltree: Added an AVL tree (self-balancing binary tree) implementation.
+ * documentation: Added documentation for the new query language features.
+ * testing: Run all unit tests through valgrind by default (if available).
+
+ Backends:
+ * collectd::unixsock:
+ - Added support for spaces in identifiers.
+ - Store plugin identifier (host, plugin, plugin_instance, type,
+ type_instance) as service attributes.
+
Version 0.2.0, Release Date: 2014-07-01
---------------------------------------
@@ -51,7 +107,6 @@ Version 0.2.0, Release Date: 2014-07-01
* documentation: Added missing files to the distribution tarball.
Plugins:
-
* syslog: Don't log debug messages to syslog.
Version 0.1.0, Release Date: 2014-06-01