Allows to hook into the config loading process just before OnAllConfigLoaded()
is called on a bunch of individual config objects. Allows doing some operations
more efficiently at once for all objects.
Intended use: when adding a number of dependencies, it has to be checked
whether this uses any cycles. This can be done more efficiently if all
dependencies are checked at once. So far, this is with a case-distinction for
initially loaded files in DaemonUtility::LoadConfigFiles() and for dependencies
created by runtime updates in Dependency::OnAllConfigLoaded(). The mechanism
added by this commit allows to unify the handling of both cases (done in a
following commit).
Before ae693cb7e1df1b885142854cf8a0f8a7600a3fb7 (#9577) we've repeatedly looped over all items in parallel like this:
while not types.done:
for t in types:
if not t.done and t.dependencies.done:
with parallel(all_items, CONCURRENCY) as some_items:
for i in some_items:
if i.type is t:
i.commit()
I.e. all items got distributed over CONCURRENCY threads, but not always equally. E.g. it was the hosts' turn, but only two threads got hosts and did all the work. The others didn't do actual work (due to the lack of hosts in their queue) which reduced the performance. c721c302cd9c96bee25a20b3862dad347345648a (#6581) fixed it by shuffling all_items first. ae693cb7e1df1b885142854cf8a0f8a7600a3fb7 (#9577) made the latter unnecessary by replacing the above algorithm with this:
while not types.done:
for t in types:
if not t.done and t.dependencies.done:
with parallel(all_items[t], CONCURRENCY) as some_items:
for i in some_items:
if i.type is t:
i.commit()
I.e. parallel() gets only items of type t, so all threads get e.g. hosts.
When committing an item with `ignore_on_error` flag set fails, the `Commit()` method only returns `nullptr`
and the current item is not being dropped from `m_Items`. `CommittNewItems()` also doesn't check the return
value of `Commit()` but just continues and tries to commit all items from `m_Items` in recursive call. Since
this corrupt item is never removed from `m_Items`, it ends up in an endless recursion till it finally crashes.
The very same object is already serialized a few lines above, the result is
even stored in a variable, but that variable was not used before. Simply using
this variable results in a noticeable improvement of config validation times.
As silent now no longer only controls the generation of log messages, a better
name is required. This changes its name, inverts its value to reflect the new
name and adds a documentation comment.
When Icinga 2 is started as a service, the early log messages generated
until the FileLogger object is activated are lost and make it really
hard to debug issues that (only) occur when Icinga 2 reloads.
With this commit, these early log messages are written to the Windows
Event Log.
There is an assertion that after activating items, all these items are
active, which sounds reasonable at first. However, with concurrent API
queries, some of these could already be deleted and therefore be
deactivated again.
Since commit d9010c7b9faaec137f3e195b370edbb406c37d76, ActivateItems no
longer uses the WorkQueue upq to perform tasks but instead performs
these locally. One instance of `upq.Join()`/`upq.HasExceptions()`
remained in the function, but I believe this was just missed when
removing the `upq.Enqueue()` call just before.
This commit removes the corresponding parameter and updates all call
sites accordingly.
This is especially problematic with many single creation requests,
e.g. many downtimes created via Icinga Web 2 & the REST API.
In addition to the config compiler messages, apply rule matches are
also in there which are removed by this patch.
This patch ensures that specific configuration types
are pre-activated and post-activated. In general,
logging is first, then common configuration objects
like host/service, downtimes, etc.
In the end, all features are activated after to ensure
that notifications are only sent once downtimes are applied.
A similar thing happens for starting with checks too early.
The ApiListener feature runs first to allow cluster connections
at first glance.
fixes#6057fixes#6231
What does this change?
* Remove use of spaces for formatting
These could be found by using `grep -r -l -P '^\t+ +[^*]'
* Removal of training whitespaces
* A few lines longer than 120 chars
