99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
/*
|
|
* WaitFailure.actor.cpp
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "fdbrpc/FailureMonitor.h"
|
|
#include "flow/Deque.h"
|
|
#include "fdbserver/Knobs.h"
|
|
#include "flow/actorcompiler.h" // This must be the last #include.
|
|
|
|
ACTOR Future<Void> waitFailureServer(FutureStream<ReplyPromise<Void>> waitFailure){
|
|
// when this actor is cancelled, the promises in the queue will send broken_promise
|
|
state Deque<ReplyPromise<Void>> queue;
|
|
loop {
|
|
ReplyPromise<Void> P = waitNext(waitFailure);
|
|
queue.push_back(P);
|
|
if (queue.size()>SERVER_KNOBS->MAX_OUTSTANDING_WAIT_FAILURE_REQUESTS){
|
|
TEST(true); // wait server queue full
|
|
queue.front().send(Void());
|
|
queue.pop_front();
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> waitFailureClient(RequestStream<ReplyPromise<Void>> waitFailure, double reactionTime,
|
|
double reactionSlope, bool trace, TaskPriority taskID) {
|
|
loop {
|
|
try {
|
|
state double start = now();
|
|
ErrorOr<Void> x = wait(waitFailure.getReplyUnlessFailedFor(ReplyPromise<Void>(), reactionTime, reactionSlope, taskID));
|
|
if (!x.present()) {
|
|
if (trace) {
|
|
TraceEvent("WaitFailureClient")
|
|
.detail("FailedEndpoint", waitFailure.getEndpoint().getPrimaryAddress().toString())
|
|
.detail("Token", waitFailure.getEndpoint().token);
|
|
}
|
|
return Void();
|
|
}
|
|
double w = start + SERVER_KNOBS->WAIT_FAILURE_DELAY_LIMIT - now();
|
|
if (w > 0)
|
|
wait( delay( w, taskID ) );
|
|
} catch (Error &e){
|
|
if (e.code() == error_code_actor_cancelled)
|
|
throw;
|
|
TraceEvent(SevError, "WaitFailureClientError").error(e);
|
|
ASSERT(false); // unknown error from waitFailureServer
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> waitFailureClientStrict(RequestStream<ReplyPromise<Void>> waitFailure, double failureReactionTime, TaskPriority taskID){
|
|
loop {
|
|
wait(waitFailureClient(waitFailure, 0, 0, false, taskID));
|
|
wait(delay(failureReactionTime, taskID) || IFailureMonitor::failureMonitor().onStateEqual( waitFailure.getEndpoint(), FailureStatus(false)));
|
|
if(IFailureMonitor::failureMonitor().getState( waitFailure.getEndpoint() ).isFailed()) {
|
|
return Void();
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> waitFailureTracker(RequestStream<ReplyPromise<Void>> waitFailure, Reference<AsyncVar<bool>> failed, double reactionTime, double reactionSlope, TaskPriority taskID){
|
|
loop {
|
|
try {
|
|
failed->set( IFailureMonitor::failureMonitor().getState(waitFailure.getEndpoint()).isFailed() );
|
|
if( failed->get() ) {
|
|
wait( IFailureMonitor::failureMonitor().onStateChanged(waitFailure.getEndpoint()) );
|
|
} else {
|
|
state double start = now();
|
|
ErrorOr<Void> x = wait(waitFailure.getReplyUnlessFailedFor(ReplyPromise<Void>(), reactionTime, reactionSlope, taskID));
|
|
if (x.present()) {
|
|
double w = start + SERVER_KNOBS->WAIT_FAILURE_DELAY_LIMIT - now();
|
|
if (w > 0)
|
|
wait( delay( w, taskID ) );
|
|
}
|
|
}
|
|
} catch (Error &e){
|
|
if (e.code() == error_code_actor_cancelled)
|
|
throw;
|
|
TraceEvent(SevError, "WaitFailureClientError").error(e);
|
|
ASSERT(false); // unknown error from waitFailureServer
|
|
}
|
|
}
|
|
}
|