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9944a5dff5
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
31 lines
831 B
C++
31 lines
831 B
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#pragma once
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#include "eden/fs/takeover/TakeoverData.h"
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#include "eden/fs/utils/PathFuncs.h"
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namespace facebook {
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namespace eden {
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/**
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* Request to take over mount points from an existing edenfs process.
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*
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* Returns a TakeoverData object on success, or throws an exception on error.
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*/
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TakeoverData takeoverMounts(
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AbsolutePathPiece socketPath,
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// the following parameters are present for testing purposes and should not
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// normally be used in the production build.
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bool shouldPing = true,
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const std::set<int32_t>& supportedTakeoverVersions =
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kSupportedTakeoverVersions);
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} // namespace eden
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} // namespace facebook
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