Commit Graph

96 Commits (b9cd76b1a2d5e005a4d9d04c7c35fc2d9de722ff)

Author SHA1 Message Date
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
Christopher Usher 072e51f287 Renaming a variable that should have been part of the last commit 6 years ago
Christopher Usher 61107346c8 Fixed backing off on exceptions and some more documenation 6 years ago
Christopher Usher 728adb7c1d improvements suggested by ekim 6 years ago
Christopher Usher 530b9f7d5e more improvements based on ekims comments 6 years ago
Chris Usher 332e03de80 started in on ekim's comments 6 years ago
Christopher Usher 2857d3fb9f comments and some whitespace handling 6 years ago
Christopher Usher 4e6dbe1c74 Added localhost option to backfill to avoid backfilling the local machine 6 years ago
Christopher Usher ade0ad3d18 rewrite of get_nodes to allow getting list of files from a file 6 years ago
Christopher Usher 23fea7b154 bug fixing after testing 6 years ago
Christopher Usher 149974ce54 added multiple streams by largely copy and pasting the code from the
downloader
6 years ago
Christopher Usher e4364b75b1 options to change where the node list is coming from 6 years ago