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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
/**@file Tests for partial failure in a cluster.
* Partial failure means some nodes experience a failure while others do not.
* In this case the failed nodes must shut down.
*/
#include "test_tools.h"
#include "unit_test.h"
#include "ClusterFixture.h"
#include <boost/assign.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/bind.hpp>
QPID_AUTO_TEST_SUITE(PartialFailureTestSuite)
using namespace std;
using namespace qpid;
using namespace qpid::cluster;
using namespace qpid::framing;
using namespace qpid::client;
using namespace qpid::client::arg;
using namespace boost::assign;
using broker::Broker;
using boost::shared_ptr;
// Timeout for tests that wait for messages
const sys::Duration TIMEOUT=sys::TIME_SEC/4;
static bool isLogOption(const std::string& s) { return boost::starts_with(s, "--log-enable"); }
void updateArgs(ClusterFixture::Args& args, size_t index) {
ostringstream os;
os << "--test-store-name=s" << index;
args.push_back(os.str());
args.push_back("--load-module=.libs/test_store.so");
args.push_back("--auth=no");
args.push_back("TMP_DATA_DIR");
// These tests generate errors deliberately, disable error logging unless a log env var is set.
if (!::getenv("QPID_TRACE") && !::getenv("QPID_LOG_ENABLE")) {
remove_if(args.begin(), args.end(), isLogOption);
args.push_back("--log-enable=critical+:DISABLED"); // hacky way to disable logs.
}
}
Message pMessage(string data, string q) {
Message msg(data, q);
msg.getDeliveryProperties().setDeliveryMode(PERSISTENT);
return msg;
}
void queueAndSub(Client& c) {
c.session.queueDeclare(c.name, durable=true);
c.subs.subscribe(c.lq, c.name);
}
// Verify normal cluster-wide errors.
QPID_AUTO_TEST_CASE(testNormalErrors) {
// FIXME aconway 2009-04-10: Would like to put a scope just around
// the statements expected to fail (in BOOST_CHECK_THROW) but that
// sproadically lets out messages, possibly because they're in
// Connection thread.
ScopedSuppressLogging allQuiet;
ClusterFixture cluster(3, -1, updateArgs);
Client c0(cluster[0], "c0");
Client c1(cluster[1], "c1");
Client c2(cluster[2], "c2");
queueAndSub(c0);
c0.session.messageTransfer(content=Message("x", "c0"));
BOOST_CHECK_EQUAL(c0.lq.get(TIMEOUT).getData(), "x");
// Session error.
BOOST_CHECK_THROW(c0.session.exchangeBind(), SessionException);
c1.session.messageTransfer(content=Message("stay", "c0")); // Will stay on queue, session c0 is dead.
// Connection error, kill c1 on all members.
queueAndSub(c1);
BOOST_CHECK_THROW(
c1.session.messageTransfer(
content=pMessage("TEST_STORE_DO: s0[exception] s1[exception] s2[exception] testNormalErrors", "c1")),
ConnectionException);
c2.session.messageTransfer(content=Message("stay", "c1")); // Will stay on queue, session/connection c1 is dead.
BOOST_CHECK_EQUAL(3u, knownBrokerPorts(c2.connection, 3).size());
BOOST_CHECK_EQUAL(c2.subs.get("c0", TIMEOUT).getData(), "stay");
BOOST_CHECK_EQUAL(c2.subs.get("c1", TIMEOUT).getData(), "stay");
}
// Test errors after a new member joins to verify frame-sequence-numbers are ok in update.
QPID_AUTO_TEST_CASE(testErrorAfterJoin) {
ScopedSuppressLogging allQuiet;
ClusterFixture cluster(1, -1, updateArgs);
Client c0(cluster[0]);
c0.session.queueDeclare("q", durable=true);
c0.session.messageTransfer(content=pMessage("a", "q"));
// Kill the new guy
cluster.add();
Client c1(cluster[1]);
c0.session.messageTransfer(content=pMessage("TEST_STORE_DO: s1[exception] testErrorAfterJoin", "q"));
BOOST_CHECK_THROW(c1.session.messageTransfer(content=pMessage("xxx", "q")), TransportFailure);
BOOST_CHECK_EQUAL(1u, knownBrokerPorts(c0.connection, 1).size());
// Kill the old guy
cluster.add();
Client c2(cluster[2]);
c2.session.messageTransfer(content=pMessage("TEST_STORE_DO: s0[exception] testErrorAfterJoin2", "q"));
BOOST_CHECK_THROW(c0.session.messageTransfer(content=pMessage("xxx", "q")), TransportFailure);
BOOST_CHECK_EQUAL(1u, knownBrokerPorts(c2.connection, 1).size());
}
// Test that if one member fails and others do not, the failure leaves the cluster.
QPID_AUTO_TEST_CASE(testSinglePartialFailure) {
ScopedSuppressLogging allQuiet;
ClusterFixture cluster(3, -1, updateArgs);
Client c0(cluster[0], "c0");
Client c1(cluster[1], "c1");
Client c2(cluster[2], "c2");
c0.session.queueDeclare("q", durable=true);
c0.session.messageTransfer(content=pMessage("a", "q"));
// Cause partial failure on c1
c0.session.messageTransfer(content=pMessage("TEST_STORE_DO: s1[exception] testSinglePartialFailure", "q"));
BOOST_CHECK_THROW(c1.session.queueQuery("q"), TransportFailure);
c0.session.messageTransfer(content=pMessage("b", "q"));
BOOST_CHECK_EQUAL(c0.session.queueQuery("q").getMessageCount(), 3u);
BOOST_CHECK_EQUAL(2u, knownBrokerPorts(c0.connection, 2).size());
// Cause partial failure on c2
c0.session.messageTransfer(content=pMessage("TEST_STORE_DO: s2[exception] testSinglePartialFailure2", "q"));
BOOST_CHECK_THROW(c2.session.queueQuery("q"), TransportFailure);
c0.session.messageTransfer(content=pMessage("c", "q"));
BOOST_CHECK_EQUAL(c0.session.queueQuery("q").getMessageCount(), 5u);
BOOST_CHECK_EQUAL(1u, knownBrokerPorts(c0.connection, 1).size());
}
// Test multiple partial falures: 2 fail 2 pass
QPID_AUTO_TEST_CASE(testMultiPartialFailure) {
ScopedSuppressLogging allQuiet;
ClusterFixture cluster(4, -1, updateArgs);
Client c0(cluster[0], "c0");
Client c1(cluster[1], "c1");
Client c2(cluster[2], "c2");
Client c3(cluster[3], "c3");
c0.session.queueDeclare("q", durable=true);
c0.session.messageTransfer(content=pMessage("a", "q"));
// Cause partial failure on c1, c2
c0.session.messageTransfer(content=pMessage("TEST_STORE_DO: s1[exception] s2[exception] testMultiPartialFailure", "q"));
BOOST_CHECK_THROW(c1.session.queueQuery("q"), TransportFailure);
BOOST_CHECK_THROW(c2.session.queueQuery("q"), TransportFailure);
c0.session.messageTransfer(content=pMessage("b", "q"));
c3.session.messageTransfer(content=pMessage("c", "q"));
BOOST_CHECK_EQUAL(c3.session.queueQuery("q").getMessageCount(), 4u);
BOOST_CHECK_EQUAL(2u, knownBrokerPorts(c0.connection, 2).size());
}
/** FIXME aconway 2009-04-10:
* The current approach to shutting down a process in test_store
* sometimes leads to assertion failures and errors in the shut-down
* process. Need a cleaner solution
*/
#if 0
QPID_AUTO_TEST_CASE(testPartialFailureMemberLeaves) {
ScopedSuppressLogging allQuiet;
ClusterFixture cluster(2, -1, updateArgs);
Client c0(cluster[0], "c0");
Client c1(cluster[1], "c1");
c0.session.queueDeclare("q", durable=true);
c0.session.messageTransfer(content=pMessage("a", "q"));
// Cause failure on member 0 and simultaneous crash on member 1.
BOOST_CHECK_THROW(
c0.session.messageTransfer(
content=pMessage("TEST_STORE_DO: s0[exception] s1[exit_process] testPartialFailureMemberLeaves", "q")),
ConnectionException);
cluster.wait(1);
Client c00(cluster[0], "c00"); // Old connection is dead.
BOOST_CHECK_EQUAL(c00.session.queueQuery("q").getMessageCount(), 1u);
BOOST_CHECK_EQUAL(1u, knownBrokerPorts(c00.connection, 1).size());
}
#endif
QPID_AUTO_TEST_SUITE_END()
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