Christian Schwarz
1ae087bfcf
- make `logging.GetLogger(ctx, Subsys)` the authoritative `logger.Logger` factory function
- the context carries a linked list of injected fields which
`logging.GetLogger` adds to the logger it returns
- introduce the concept of tasks and spans, also tracked as linked list within ctx
- [ ] TODO automatic logging of span begins and ends, with a unique
ID stack that makes it easy to follow a series of log entries in
concurrent code
- ability to produce a chrome://tracing-compatible trace file,
either via an env variable or a `zrepl pprof` subcommand
- this is not a CPU profile, we already have go pprof for that
- but it is very useful to visually inspect where the
replication / snapshotter / pruner spends its time
( fixes #307 )
The tool in this package (go run . -h) scrapes log lines produces by the github.com/zrepl/zrepl/zfs/zfscmd package
into a stream of JSON objects.
The analysis.ipynb then runs some basic analysis on the collected log output.
Deps for the scrape_graylog_csv.bash script
pip install --upgrade git+https://github.com/lk-jeffpeck/csvfilter.git@ec433f14330fbbf5d41f56febfeedac22868a949