Summary:
We'll need to gate portions of our shutdown so that we don't
tear down the database until after in-flight requests have completed.
This seems like the easiest way to go about it.
Reviewed By: simpkins
Differential Revision: D5796593
fbshipit-source-id: 49e695826ae68cc2b1d724a8da53ce5d884ff9ff
Summary:
The higher level goal is to make it easier to deal
with the graceful restart scenario.
This diff removes the SessionDeleter class and effectively renames
the Channel class to FuseChannel. The FuseChannel represents
the channel to the kernel; it can be constructed from a fuse
device descriptor that has been obtained either from the privhelper
at mount time, or from the graceful restart procedure. Importantly
for graceful restart, it is possible to move the fuse device
descriptor out of the FuseChannel so that it can be transferred
to a new eden process.
The graceful restart procedure requires a bit more control over
the lifecycle of the fuse event loop so this diff also takes over
managing the thread pool for the worker threads. The threads
are owned by the MountPoint class which continues to be responsible
for starting and stopping the fuse session and notifying EdenServer
when it has finished. A nice side effect of this change is that
we can remove a couple of inelegant aspects of the integration;
the stack size env var stuff and the redundant extra thread
to wait for the loop to finish.
I opted to expose the dispatcher ops struct via an `extern` to
simplify the code in the MountPoint class and avoid adding special
interfaces for passing the ops around; they're constant anyway
so this doesn't feel especially egregious.
Reviewed By: bolinfest
Differential Revision: D5751521
fbshipit-source-id: 5ba4fff48f3efb31a809adfc7787555711f649c9
Summary:
Update all of the code using ThreadLocal<EdenStats> to pass in a non-default
Tag parameter to the ThreadLocal template.
A non-default tag parameter is required to use the accessAllThreads() method on
the ThreadLocal object. We need to use accessAllThreads() to perform stats
aggregation correctly. Currently the EdenServer code is only performing
aggregation for stats in the FunctionScheduler.
This diff only updates the ThreadLocal<EdenStats> type, but does not contain
any behavior changes. I will fix the stats aggregation in a subsequent diff.
Reviewed By: bolinfest
Differential Revision: D5657268
fbshipit-source-id: bc4b6f56324eb8d3052c023fd3f6f64f99b1d4e0
Summary:
Update eden to log via the new folly logging APIs rather than with glog.
This adds a new --logging flag that takes a logging configuration string.
By default we set the log level to INFO for all eden logs, and WARNING for
everything else. (I suspect we may eventually want to run with some
high-priority debug logs enabled for some or all of eden, but this seems like a
reasonable default to start with.)
Reviewed By: wez
Differential Revision: D5290783
fbshipit-source-id: 14183489c48c96613e2aca0f513bfa82fd9798c7
Summary:
This change makes it so that all of the C++ code related to the edenfs daemon
is now contained in the eden/fs subdirectory.
Reviewed By: bolinfest, wez
Differential Revision: D4889053
fbshipit-source-id: d0bd4774cc0bdb5d1d6b6f47d716ecae52391f37
