(Redmine issue: #4489)

(Redmine issue: #5751)

(Redmine issue: #5751)

(Redmine issue: #5751)

(Redmine issue: #5751)

This configuration is more conservative regarding the possible data loss in case of failure. (Redmine issue: #4572)

(Redmine issue: #3443)

The mentat-storage.py daemon has now ability to use transaction savepoints to reduce number of commits and thus greatly enhance event storage rate. The feature is configurable and optional. The mentat.services.eventstorage needed to be upgraded to support this new feature. Also, the pyzenkit module contained a bug, which prevented this feature to work correctly, so it needed to be fixed as well. (Redmine issue: #4572)

(Redmine issue: #6105)

(Redmine issue: #3443)

(Redmine issue: #4384)

(Redmine issue: #6096)

Added the ability to list all currently running event database queries and limiting number of queries per user.

Users are now limited in the number of event search queries they can execute on the event database. Also the list of all currently running queries available for administrator now contains all queries, not just the named ones. But only the named ones can be canceled from the interface, you must use PostgreSQL console to cancel the others. (Redmine issue: #4384)

(Redmine issue: #3361)

This feature is available for system administrators to keep them informed about the time consumption of different search stages: preparation, searching, postprocessing. (Redmine issue: #4384)

(Redmine issue: #4384)

List of running queries now contains context action for stopping that query. (Redmine issue: #4384)

(Redmine issue: #4384)

(Redmine issue: #4384)

(Redmine issue: #4384)

(Redmine issue: #4384)

(Redmine issue: #4384)

* Invalid dictionary declaration.
* Invalid working with aware and unaware timestamps.

(Redmine issue: #4384)

(Redmine issue: #4384)

This migration requires some maintenance tasks to keep the performance level. To make it easier for the user it is best to put it directly to the migration script. (Redmine issue: #4274,#4275)

By introducting new type of SELECT query the condition needed to be updated accrdingly. (Redmine issue: #4274,#4275)

By this move we attempt to speed up the searching process and lower the usage of system resources, because the amount of data the database engine needs to load and process will be significantly smaller. (Redmine issue: #4274,#4275)

JSON response could be really large in some scenarios, we have encountered objects 40MB large. Since the user is interested only in 'statistics' subkey, it is unnecessary to mae him download all the raw data as well.

(Redmine issue: #5751)

(Redmine issue: #5751)

In some cases like API endpoints it could be usefull to retrieve more items at once, so that the potential third party software can process more data at once.

* Added missing documentation pages for some Hawat plugins.
* Improved documentation of 'events' plugin.
* Few other minor documentation tweaks.

(Redmine issue: #3361)

Documentation was provided by Radko Krkoš, he gets the credit for all the work. (Redmine issue: #6003)

(Redmine issue: #3387)

(Redmine issue: #5751)

(Redmine issue: #3361)

(Redmine issue: #5751)

(Redmine issue: #3387)