Summary:
This diff prepares the Mononoke codebase for composition-based extendability of
`ScubaSampleBuilder`. Specifically, in the near future I will add:
- new methods for verbose scuba logging
- new data field (`ObservabilityContext`) to check if verbose logging should
be enabled or disabled
The higher-level goal here is to be able to enable/disable verbose Scuba
logging (either overall or for certain slices of logs, like for a certain
session id) in real time, without restarting Mononoke. To do so, I plan to
expose the aforementioned verbose logging methods, which will run a check
against the stored `ObservabilityContext` and make a decision of whether the
logging is enabled or not. `ObservabilityContext` will of course hide
implementation details from the renamed `ScubaSampleBuilderExt`, and just provide a yes/no
answer based on the current config and sample fields.
At the moment this should be a completely harmless change.
Reviewed By: krallin
Differential Revision: D25211089
fbshipit-source-id: ea03dda82fadb7fc91a2433e12e220582ede5fb8
Summary:
This updates multiplexedblob and logblob to capture perf counters for the
operations we run, and log them to Scuba. Along with the previous diffs in this
stack, this gives us the number of Manifold retries, total delay, and conflicts
all logged to blobstore trace on a per-operation basis.
Reviewed By: HarveyHunt
Differential Revision: D24333039
fbshipit-source-id: 9c7d0a467f8df08dcb2a0d3bb6b543cdb3ea1d90
Summary:
log whether puts overwrite keys by implementing BlobstoreWithPutBehaviour for Logblob.
It logs a count of type of overwrite per put so we can sum them up.
Reviewed By: StanislavGlebik
Differential Revision: D24079272
fbshipit-source-id: 81944d92a56b0d3349ef390eb83f9e5bf4ee3d39
Summary:
We are currently logging only the outermost underlying error or context, not any of the lower level causes. This makes mononoke_blobstore_trace less useful!
This changes to use anyhow's alternate format that includes causes
Reviewed By: krallin
Differential Revision: D23708577
fbshipit-source-id: fa2e71734841e2b75d824c456dccf61c1fb13fd2
Summary:
The blobstore multiplexer contains logic to log blobstore operations to
scuba, as well as updating `PerfCounters`. There are some cases where we don't use the
multiplexed blobstore, which means that we're missing this important logging.
Factor out the logging to a separate crate and implement `LogBlob`, which wraps
another blobstore and performs logging to both scuba and PerfCounters.
Reviewed By: StanislavGlebik
Differential Revision: D21573455
fbshipit-source-id: 490ffd347f1ad19effc93b93f880836467b87651
