Commit Graph

107 Commits (abafa0a92511b60a9d751e15b626d23a1252b1d8)

Author SHA1 Message Date
Mike Lang 62bd6539ea Unpin gevent as that was a workaround for a py2 issue 3 years ago
Mike Lang e63aa53019 Remove left-over usage of encode_strings
More py3 breakage
3 years ago
Mike Lang 21856c68aa Fix all instances of file.write() for py3
In python 3, file.write() may do a partial write and returns the number of characters written.
In order to not lose data, we need to wrap every instance of file.write() with our new
common.writeall() wrapper that loops until the data is actually written.
3 years ago
Mike Lang a56f6859bb more py3 fixes 3 years ago
Mike Lang f2a8007bf7 Fix build dependency issues 3 years ago
Mike Lang 7d4eb3c8db py3 fixes for backfiller 3 years ago
HubbeKing 6d790a1b36 Do a first naive pass for py3 compatibility
Check that open() calls for reading and writing use binary modes
Use alpine version with py3-pip package
Use python3 in Dockerfile CMD
Remove sys.setdefaultencoding() "hack"
Simplify ensure_directory() in common.common package
3 years ago
Mike Lang f0546e2ee3 Pin gevent to 1.5a2 to avoid https://github.com/gevent/gevent/issues/1711 3 years ago
Mike Lang b53fcd65a0 Add dependencies required to install psycopg2 from source
We can't install the binaries as they don't support musl
4 years ago
HubbeKing 86f7823348 Replace calls to gevent.signal() with gevent.signal_handler()
gevent.signal() was removed in gevent 1.5a4, see http://www.gevent.org/api/gevent.signal.html
Removed on Feb 5th, see https://github.com/gevent/gevent/pull/1530
4 years ago
Mike Lang a53786dc2d Add file and make as build dependencies
gevent now requires these to build. I'm not sure when this changed.
4 years ago
Christopher Usher 986c9a3413 removed redundant option 5 years ago
Christopher Usher 9c77dd1f40 added the ability to generate a webpage with all coverage maps 5 years ago
Mike Lang 71333cf826 backfiller: Only run one manager, not one per channel
Then treat backfilling each channel just like backfilling each quality.

This is conceptually simpler (only one kind of thing, a (channel, quality))
and has better behaviour when a node is down (we only have one lot of error handling around it).

It also means we aren't asking the database for the same info once per channel,
and cuts down on logging noise.
5 years ago
Mike Lang ff18c7df54 backfiller: Fix issue with tracking metrics after get_nodes() failure
There isn't an easy, clean way to pass in the DB hostname there,
and neither label is very valuable. Let's just drop it entirely.
5 years ago
Mike Lang 731ef9e2d0 Refactor dockerfiles for more shared layers
By carefully ensuring most of our dockerfiles are identical in their first few layers,
we only need to build those layers once instead of every time.

In particular, we move installing gevent to before installing common,
so that even when common changes gevent doesn't need to be reinstalled.

This is important because gevent takes ages to install.

Also fixes segment_coverage, which wasn't being installed.
5 years ago
Mike Lang d63ae573b7 backfiller: Collect metrics on http calls 5 years ago
Christopher Usher dc1c31fef4 fixes to the error handling as suggested by ekim 5 years ago
Christopher Usher 553b11bc84 typo in error handler 5 years ago
Christopher Usher 9dfffe0a62 improvements based on ekims suggestions plus delete_hours yeilds to the
rest of the backfiller
5 years ago
Christopher Usher 8579fcaeea check start is not None before checking whether hour is before start 5 years ago
Christopher Usher f8835cd253 documentation for --delete-old; check that start is not none 5 years ago
Christopher Usher a361249145 renamed delete_before to keep_hours 5 years ago
Christopher Usher be562b8448 added warnings if keeping fewer hours than backfilling 5 years ago
Christopher Usher 9d81569d98 Added the ability to delete old hours 5 years ago
Mike Lang 7183b25ce9
Merge pull request #119 from ekimekim/mike/database-resilience
Changes to improve behaviour if the DB is down
5 years ago
Christopher Usher 929308f3e7 started on the segment_coverage service 5 years ago
Mike Lang 0e437566aa backfiller: Don't crash on DB errors
We move all connection handling into get_nodes().
This means that problems connecting won't cause further errors
and cause the application to completely crash.

In turn, this means that the behaviour if the database goes down becomes
"continue backfilling from the nodes we know about" instead of crashing.
5 years ago
Christopher Usher ccb7f3c684 now use parse_segment_path to get hash from filename 5 years ago
Christopher Usher 36da1926d0 fixes for ekims suggestions 5 years ago
Christopher Usher 34785d1179 now checking the hashes 5 years ago
Christopher Usher b0562495d2 reject mismatched hashes; more metrics 5 years ago
Christopher Usher 120a5a7de0 started on checking the hash 5 years ago
Chris Usher 557ddddc31 better logging for the backfiller 5 years ago
Christopher Usher 44f0e0defb changed it back so only the name is checked 5 years ago
Chris Usher aab46f9765 fixed localhost bug in backfiller 5 years ago
Christopher Usher 84270c02ec logging fix 5 years ago
Christopher Usher fdb5d20db7 fix to database logging 5 years ago
Christopher Usher 497845f2da typos in comments 5 years ago
Christopher Usher 361e577474 fixes based on ekimekims suggestions 5 years ago
Christopher Usher 720684a388 refactoring to have consistent terminology 5 years ago
Christopher Usher 6d38250674 starting to refactor stream to channel and variant to quality 5 years ago
Mike Lang f50276bd01 backfiller: Expose recent_cutoff as CLI arg and increase it to 120s default
In testing, GDQ's stream delay went up over 1min, which caused backfillers to backfill
segments at the same time they were downloaded. We increase the window for now,
and also make it configurable.
5 years ago
Mike Lang 29040a166c backfiller: Allow multiple concurrent segment downloads
This will signifigantly increase throughput when downloading
large ranges of segments.

The max concurrency is exposed as a cli arg.

We also slightly modify the logged info, so it reports segments downloaded,
not just number of missing segments (which we might skip downloading for various reasons).
5 years ago
Christopher Usher 37bad7d5ed Also reset database connection on error in the backfiller 5 years ago
Mike Lang 7179fcacec Backfiller: ignore temp segments
To make this work, we make type a proper segment field.

We also tell get_best_segments to ignore temp segments, since they might go away
before we can actually use them.
5 years ago
Christopher Usher dd246e1343 ekimekim's suggestions 5 years ago
Christopher Usher 9b28765ff2 Bug fixes to get the database connection working 5 years ago
Christopher Usher 4b9fbcb7d2 backfiller database code 5 years ago
Mike Lang f8d10dacdf Audit and fix all usage of dateutil
We wrap direct dateutil calls to handle two distinct cases:

* `common.dateutil.parse()`: We want to handle arbitrary timestamps including tz info,
then convert them to UTC.

This is used in HLS parsing, and for command line input for backfiller

* `common.dateutil.parse_utc_only()`: We want to only handle UTC timestamps,
but datetime.strptime isn't flexible enough (eg. can't handle missing fractional component).

This is used for restreamer request params.
5 years ago