Don't update total stats metrics if reporting is disabled.
New setting disable_total_stats for turning off update
of total stats (stat_totals_*) metrics.
Ref #19137
* Metrics: remove unused metrics
Metric `M_Grafana_Version` is not used anywhere, nor the mentioned
`M_Grafana_Build_Version`. Seems to be an artefact?
* Metrics: make the naming consistent
* Metrics: add comments to exported vars
* Metrics: use proper naming
Fixes#18110
* Implementation of optimistic lock pattern
Try to insert the remote cache key and handle integrity error
* Remove transaction
Integrity error inside a transaction results in deadlock
* Remove check for existing remote cache key
Is no longer needed since integrity constrain violations are handled
* Add check for integrity constrain violation
Do not update the row if the insert statement fails
for other than an integrity constrain violation
* Handle failing inserts because of deadlocks
If the insert statement fails because of a deadlock
try to update the row
* Add utility function for returning SQL error code
Useful for debugging
* Add logging for failing expired cache key deletion
Do not shallow it completely
* Revert "Add utility function for returning SQL error code"
This reverts commit 8e0b82c79633e7d8bc350823cbbab2ac7a58c0a5.
* Better log for failing deletion of expired cache key
* Add some comments
* Remove check for existing cache key
Attempt to insert the key without checking if it's already there
and handle the error situations
* Do not propagate deadlocks created during update
Most probably somebody else is trying to insert/update
the key at the same time so it is safe enough to ignore it
* wip: fix remote cache for redis
connstr parsing and non-negative expires for #17377
TODO: finish parse, check zero case, find out why negative duration in the first place
* finish parse.
Still TODO, find out negative value, and decide if would be better to make database specific entries in the .ini file
* update ini files
* remove accidental uncomment in defaults.ini
* auth_proxy: expiration non-negative so expiration is not in the past
* fix test, revert neg in redis
* review: use errutil
* remotecache: avoid race condition in set
since set called the database twice without transactions another
operation could insert a value before the first operation completed.
which would raise an error on insert since the data have been inserted
by the other request.
closes#17079
Since we do not like some of the default golint rules,
this commit proposes to use https://github.com/mgechev/revive.
And potential revive speed-up should't hurt :).
Right now, presented config (./conf/revive.toml) is permissive,
we might improve it over time however. Fixes for found revive
issues in the code are very limited so it wouldn't be large to review.
Also in this commit:
* Add annotations for makefile commands and declare phony targets
* Rename "gometalinter" script and CI command to "lint"
since we are doing there a bit more then using gometalinter package
* Add Makefile rules to .editorconfig
* Documentation which mentioned "golint" replaced with revive
Fixes#16109
Ref #16160
