Summary:
* This adds a `EdenServer::recover()` method to start back up on unsuccessful takeover data send.
* On an unsuccessful ping, filfill the `shutdownPromise` with a `TakeoverSendError` continaing the constructed `TakeoverData`. After this `recover` function is called, `takeoverPromise_` is reset, `takeoverShutdown` is set to `false`, and the `runningState_` is set to `RUNNING`.
With taking over from the returned `TakeoverData`, the user will not encounter `Transport not connected` errors on recovery.
* This adds a `EdenServer::closeStorage()` method to defer closing the `backingStore_` and `localStore_` until after our ready handshake is successful.
* This defers the shutdown of the `PrivHelper` until a successful ready handshake.
I also update the takeover documentation here with the new logic (and fix some formatting issues)
Reviewed By: simpkins
Differential Revision: D20433433
fbshipit-source-id: f59e660922674d281957e80aee5049735b901a2c
Summary:
Update the copyright & license headers in C++ files to reflect the
relicensing to GPLv2
Reviewed By: wez
Differential Revision: D15487078
fbshipit-source-id: 19f24c933a64ecad0d3a692d0f8d2a38b4194b1d
Summary:
This adds a new class which listens on a Unix domain socket for clients that
wish to gracefully take over Eden's FUSE mount points. The goal is to
eventually enable graceful restart functionality for eden.
It would be nice if we could use the existing thrift server socket for this,
but thrift doesn't provide low-enough level APIs so that we can send
credentials and file descriptors over the socket using SCM_CREDENTIALS and
SCM_RIGHTS. Using our own separate socket is the easiest way to accomplish
this instead.
For now eden just listens on this socket and logs a message when a client
connects; this diff does not yet contain logic for performing mount point
takeover.
Reviewed By: bolinfest
Differential Revision: D5827752
fbshipit-source-id: 928e541efa2546cb612da2699ff0bd822bafaad5
