Small cleanups of the observer stats init code:
1. Use sync.Once for race free addition to the monitoring chain
(purely defensive)
2. Set the observer durations before adding to the monitoring chain on
first use.
3. observerDurations slice does not need to be initialized to non-nil
Change-Id: I9ae8ec96debc7d52c4ee5d22762a89f21bb2e38c
When an observer errors we still want to finish the other observers.
This changes store the error and continues the loop, skipping
the observer which errored out and setting the duration metric to -1.
When the error occurs in the process stage, it does continue the other
ranges of the same observer. It removes the observer entirely after the process
stage. To improve this would make it more complex due to race
conditions.
Closes https://github.com/storj/storj/issues/5389
Change-Id: I528432c491d4340817d6950f1200ee2b9e703309
Add option AsOfSystemTime to segment provider to make it equivalent to
the old segment loop.
There's no comment on what it does because it's pretty complex and
makes no sense, but we can improve it later.
closes https://github.com/storj/storj/issues/5434
Change-Id: I8f09b03803e681e2fd41008c5dba67804b0f37a1
Add an observer to monitor ranged segment loop progress.
Tested by running the segment loop in storj-up and navigating to
http://<container>:11111/mon/stats and there is the entry:
rangedloop-live,scope=storj.io/storj/satellite/metabase/rangedloop numSegments=364523630000.000000
part of https://github.com/storj/storj/issues/5223
Change-Id: If3d2774d2f17f51eac86f47c6dda1fb8ad696dfe
Support interruption of the ranged segment loop through context.
Part of https://github.com/storj/storj/issues/5223
Change-Id: Iae0260e250f8ea33affed95c6592a1f42df384eb
added in storj-sim rangedloop for each satellite, to verify it works for metrics oveserver,
removed identity from rangedloop peer as we never use it, added logs on service run, added loop
to service instead of endless for loop, interval value to config
Closes: https://github.com/storj/storj/issues/5414
Change-Id: Ibc3b06071b68feda4a35b45da2bbe36e22a02fc8
Wire up duration measurement of observers with monkit.
Tested by attaching a SleepObserver, starting the rangedloop in storj-up
and navigating to http://<container>:11111/mon/stats. It reports the
following statistic:
completed-observer-duration,observer=*rangedlooptest.SleepObserver,scope=storj.io/storj/satellite/metabase/rangedloop duration=10.000117
Change-Id: Ief131d34001dd5d3ba1d7be6f161986e1f66440d
Track duration of all segment loop observers. Factor out functions to
reduce size.
Still need to send the measurements out via monkit.
Part of https://github.com/storj/storj/issues/5223
Change-Id: Iae0260e250f8ea33affed95c6592a1f42df384eb
Some observers assume that they will observe all the segments for a
given stream, and that they will observe those segments in a sequential
stream over one or more iterations.
This change updates the range provider from rangedlooptest to provide
these guarantees.
The change also removes the Mock suffix from the provider/splitter types
since the package name (rangedlooptest) implies that the type is a test
double.
Change-Id: I927c409807e305787abcde57427baac22f663eaa
Add an abstraction rangedloop.SegmentProvider to fetch chunks of
segments from the metainfo database in parallel.
Part of https://github.com/storj/storj/issues/5223
Change-Id: Ife26467ea0c3be550bde0b05464ef1db62dd4d2a
Minimal implementation of the ranged (=threaded) segment loop
service, to improve performance over the existing loop.
Has tests with a an inmemory segment database
and example observer.
Does not have yet: database link, observer duration tracking,
suspicious processed ratio guard, rate limiting, minimum execution
interval per observer, etc.
Part of https://github.com/storj/storj/issues/5223
Change-Id: I08ffb392c3539e380f4e7b4f1afd56c4c394668d
Pair uuid's to create ranges. Will be used to parallelize the segment
loop.
Part of https://github.com/storj/storj/issues/5223
Change-Id: I73e2fb8a2cd379b840864449b6251b48feeb7b66
