io.seata.server.coordinator.DefaultCoordinator Maven / Gradle / Ivy
/*
* Copyright 1999-2019 Seata.io Group.
*
* 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.
*/
package io.seata.server.coordinator;
import java.time.Duration;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import io.netty.channel.Channel;
import io.seata.common.thread.NamedThreadFactory;
import io.seata.common.util.CollectionUtils;
import io.seata.common.util.DurationUtil;
import io.seata.config.ConfigurationFactory;
import io.seata.core.constants.ConfigurationKeys;
import io.seata.core.context.RootContext;
import io.seata.core.exception.TransactionException;
import io.seata.core.model.GlobalStatus;
import io.seata.core.protocol.AbstractMessage;
import io.seata.core.protocol.AbstractResultMessage;
import io.seata.core.protocol.transaction.AbstractTransactionRequestToTC;
import io.seata.core.protocol.transaction.AbstractTransactionResponse;
import io.seata.core.protocol.transaction.BranchRegisterRequest;
import io.seata.core.protocol.transaction.BranchRegisterResponse;
import io.seata.core.protocol.transaction.BranchReportRequest;
import io.seata.core.protocol.transaction.BranchReportResponse;
import io.seata.core.protocol.transaction.GlobalBeginRequest;
import io.seata.core.protocol.transaction.GlobalBeginResponse;
import io.seata.core.protocol.transaction.GlobalCommitRequest;
import io.seata.core.protocol.transaction.GlobalCommitResponse;
import io.seata.core.protocol.transaction.GlobalLockQueryRequest;
import io.seata.core.protocol.transaction.GlobalLockQueryResponse;
import io.seata.core.protocol.transaction.GlobalReportRequest;
import io.seata.core.protocol.transaction.GlobalReportResponse;
import io.seata.core.protocol.transaction.GlobalRollbackRequest;
import io.seata.core.protocol.transaction.GlobalRollbackResponse;
import io.seata.core.protocol.transaction.GlobalStatusRequest;
import io.seata.core.protocol.transaction.GlobalStatusResponse;
import io.seata.core.protocol.transaction.UndoLogDeleteRequest;
import io.seata.core.rpc.Disposable;
import io.seata.core.rpc.RemotingServer;
import io.seata.core.rpc.RpcContext;
import io.seata.core.rpc.TransactionMessageHandler;
import io.seata.core.rpc.netty.ChannelManager;
import io.seata.core.rpc.netty.NettyRemotingServer;
import io.seata.server.AbstractTCInboundHandler;
import io.seata.server.metrics.MetricsPublisher;
import io.seata.server.session.BranchSession;
import io.seata.server.session.GlobalSession;
import io.seata.server.session.SessionCondition;
import io.seata.server.session.SessionHelper;
import io.seata.server.session.SessionHolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import static io.seata.common.Constants.ASYNC_COMMITTING;
import static io.seata.common.Constants.RETRY_COMMITTING;
import static io.seata.common.Constants.RETRY_ROLLBACKING;
import static io.seata.common.Constants.TX_TIMEOUT_CHECK;
import static io.seata.common.Constants.UNDOLOG_DELETE;
import static io.seata.common.DefaultValues.DEFAULT_ASYNC_COMMITTING_RETRY_PERIOD;
import static io.seata.common.DefaultValues.DEFAULT_COMMITING_RETRY_PERIOD;
import static io.seata.common.DefaultValues.DEFAULT_MAX_COMMIT_RETRY_TIMEOUT;
import static io.seata.common.DefaultValues.DEFAULT_MAX_ROLLBACK_RETRY_TIMEOUT;
import static io.seata.common.DefaultValues.DEFAULT_ROLLBACKING_RETRY_PERIOD;
import static io.seata.common.DefaultValues.DEFAULT_ROLLBACK_RETRY_TIMEOUT_UNLOCK_ENABLE;
import static io.seata.common.DefaultValues.DEFAULT_TIMEOUT_RETRY_PERIOD;
import static io.seata.common.DefaultValues.DEFAULT_UNDO_LOG_DELETE_PERIOD;
/**
* The type Default coordinator.
*/
public class DefaultCoordinator extends AbstractTCInboundHandler implements TransactionMessageHandler, Disposable {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultCoordinator.class);
private static final int TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS = 5000;
/**
* The constant COMMITTING_RETRY_PERIOD.
*/
protected static final long COMMITTING_RETRY_PERIOD = CONFIG.getLong(ConfigurationKeys.COMMITING_RETRY_PERIOD,
DEFAULT_COMMITING_RETRY_PERIOD);
/**
* The constant ASYNC_COMMITTING_RETRY_PERIOD.
*/
protected static final long ASYNC_COMMITTING_RETRY_PERIOD = CONFIG.getLong(
ConfigurationKeys.ASYNC_COMMITING_RETRY_PERIOD, DEFAULT_ASYNC_COMMITTING_RETRY_PERIOD);
/**
* The constant ROLLBACKING_RETRY_PERIOD.
*/
protected static final long ROLLBACKING_RETRY_PERIOD = CONFIG.getLong(ConfigurationKeys.ROLLBACKING_RETRY_PERIOD,
DEFAULT_ROLLBACKING_RETRY_PERIOD);
/**
* The constant TIMEOUT_RETRY_PERIOD.
*/
protected static final long TIMEOUT_RETRY_PERIOD = CONFIG.getLong(ConfigurationKeys.TIMEOUT_RETRY_PERIOD,
DEFAULT_TIMEOUT_RETRY_PERIOD);
/**
* The Transaction undo log delete period.
*/
protected static final long UNDO_LOG_DELETE_PERIOD = CONFIG.getLong(
ConfigurationKeys.TRANSACTION_UNDO_LOG_DELETE_PERIOD, DEFAULT_UNDO_LOG_DELETE_PERIOD);
/**
* The Transaction undo log delay delete period
*/
protected static final long UNDO_LOG_DELAY_DELETE_PERIOD = 3 * 60 * 1000;
private static final int ALWAYS_RETRY_BOUNDARY = 0;
/**
* default branch async queue size
*/
private static final int DEFAULT_BRANCH_ASYNC_QUEUE_SIZE = 5000;
/**
* the pool size of branch asynchronous remove thread pool
*/
private static final int BRANCH_ASYNC_POOL_SIZE = Runtime.getRuntime().availableProcessors();
private static final Duration MAX_COMMIT_RETRY_TIMEOUT = ConfigurationFactory.getInstance().getDuration(
ConfigurationKeys.MAX_COMMIT_RETRY_TIMEOUT, DurationUtil.DEFAULT_DURATION, DEFAULT_MAX_COMMIT_RETRY_TIMEOUT);
private static final Duration MAX_ROLLBACK_RETRY_TIMEOUT = ConfigurationFactory.getInstance().getDuration(
ConfigurationKeys.MAX_ROLLBACK_RETRY_TIMEOUT, DurationUtil.DEFAULT_DURATION, DEFAULT_MAX_ROLLBACK_RETRY_TIMEOUT);
private static final boolean ROLLBACK_RETRY_TIMEOUT_UNLOCK_ENABLE = ConfigurationFactory.getInstance().getBoolean(
ConfigurationKeys.ROLLBACK_RETRY_TIMEOUT_UNLOCK_ENABLE, DEFAULT_ROLLBACK_RETRY_TIMEOUT_UNLOCK_ENABLE);
private final ScheduledThreadPoolExecutor retryRollbacking =
new ScheduledThreadPoolExecutor(1, new NamedThreadFactory(RETRY_ROLLBACKING, 1));
private final ScheduledThreadPoolExecutor retryCommitting =
new ScheduledThreadPoolExecutor(1, new NamedThreadFactory(RETRY_COMMITTING, 1));
private final ScheduledThreadPoolExecutor asyncCommitting =
new ScheduledThreadPoolExecutor(1, new NamedThreadFactory(ASYNC_COMMITTING, 1));
private final ScheduledThreadPoolExecutor timeoutCheck =
new ScheduledThreadPoolExecutor(1, new NamedThreadFactory(TX_TIMEOUT_CHECK, 1));
private final ScheduledThreadPoolExecutor undoLogDelete =
new ScheduledThreadPoolExecutor(1, new NamedThreadFactory(UNDOLOG_DELETE, 1));
private final GlobalStatus[] rollbackingStatuses = new GlobalStatus[] {GlobalStatus.TimeoutRollbacking,
GlobalStatus.TimeoutRollbackRetrying, GlobalStatus.RollbackRetrying, GlobalStatus.Rollbacking};
private final GlobalStatus[] retryCommittingStatuses =
new GlobalStatus[] {GlobalStatus.Committing, GlobalStatus.CommitRetrying};
private final ThreadPoolExecutor branchRemoveExecutor = new ThreadPoolExecutor(BRANCH_ASYNC_POOL_SIZE, BRANCH_ASYNC_POOL_SIZE,
Integer.MAX_VALUE, TimeUnit.MILLISECONDS,
new ArrayBlockingQueue<>(
CONFIG.getInt(ConfigurationKeys.SESSION_BRANCH_ASYNC_QUEUE_SIZE, DEFAULT_BRANCH_ASYNC_QUEUE_SIZE)
), new NamedThreadFactory("branchSessionRemove", BRANCH_ASYNC_POOL_SIZE),
new ThreadPoolExecutor.CallerRunsPolicy());
private RemotingServer remotingServer;
private final DefaultCore core;
private static volatile DefaultCoordinator instance;
/**
* Instantiates a new Default coordinator.
*
* @param remotingServer the remoting server
*/
private DefaultCoordinator(RemotingServer remotingServer) {
if (remotingServer == null) {
throw new IllegalArgumentException("RemotingServer not allowed be null.");
}
this.remotingServer = remotingServer;
this.core = new DefaultCore(remotingServer);
}
public static DefaultCoordinator getInstance(RemotingServer remotingServer) {
if (null == instance) {
synchronized (DefaultCoordinator.class) {
if (null == instance) {
instance = new DefaultCoordinator(remotingServer);
}
}
}
return instance;
}
public static DefaultCoordinator getInstance() {
if (null == instance) {
throw new IllegalArgumentException("The instance has not been created.");
}
return instance;
}
/**
* Asynchronous remove branch
*
* @param globalSession the globalSession
* @param branchSession the branchSession
*/
public void doBranchRemoveAsync(GlobalSession globalSession, BranchSession branchSession) {
if (globalSession == null) {
return;
}
branchRemoveExecutor.execute(new BranchRemoveTask(globalSession, branchSession));
}
/**
* Asynchronous remove all branch
*
* @param globalSession the globalSession
*/
public void doBranchRemoveAllAsync(GlobalSession globalSession) {
if (globalSession == null) {
return;
}
branchRemoveExecutor.execute(new BranchRemoveTask(globalSession));
}
@Override
protected void doGlobalBegin(GlobalBeginRequest request, GlobalBeginResponse response, RpcContext rpcContext)
throws TransactionException {
response.setXid(core.begin(rpcContext.getApplicationId(), rpcContext.getTransactionServiceGroup(),
request.getTransactionName(), request.getTimeout()));
if (LOGGER.isInfoEnabled()) {
LOGGER.info("Begin new global transaction applicationId: {},transactionServiceGroup: {}, transactionName: {},timeout:{},xid:{}",
rpcContext.getApplicationId(), rpcContext.getTransactionServiceGroup(), request.getTransactionName(), request.getTimeout(), response.getXid());
}
}
@Override
protected void doGlobalCommit(GlobalCommitRequest request, GlobalCommitResponse response, RpcContext rpcContext)
throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setGlobalStatus(core.commit(request.getXid()));
}
@Override
protected void doGlobalRollback(GlobalRollbackRequest request, GlobalRollbackResponse response,
RpcContext rpcContext) throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setGlobalStatus(core.rollback(request.getXid()));
}
@Override
protected void doGlobalStatus(GlobalStatusRequest request, GlobalStatusResponse response, RpcContext rpcContext)
throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setGlobalStatus(core.getStatus(request.getXid()));
}
@Override
protected void doGlobalReport(GlobalReportRequest request, GlobalReportResponse response, RpcContext rpcContext)
throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setGlobalStatus(core.globalReport(request.getXid(), request.getGlobalStatus()));
}
@Override
protected void doBranchRegister(BranchRegisterRequest request, BranchRegisterResponse response,
RpcContext rpcContext) throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setBranchId(
core.branchRegister(request.getBranchType(), request.getResourceId(), rpcContext.getClientId(),
request.getXid(), request.getApplicationData(), request.getLockKey()));
}
@Override
protected void doBranchReport(BranchReportRequest request, BranchReportResponse response, RpcContext rpcContext)
throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
MDC.put(RootContext.MDC_KEY_BRANCH_ID, String.valueOf(request.getBranchId()));
core.branchReport(request.getBranchType(), request.getXid(), request.getBranchId(), request.getStatus(),
request.getApplicationData());
}
@Override
protected void doLockCheck(GlobalLockQueryRequest request, GlobalLockQueryResponse response, RpcContext rpcContext)
throws TransactionException {
MDC.put(RootContext.MDC_KEY_XID, request.getXid());
response.setLockable(
core.lockQuery(request.getBranchType(), request.getResourceId(), request.getXid(), request.getLockKey()));
}
/**
* Timeout check.
*/
protected void timeoutCheck() {
SessionCondition sessionCondition = new SessionCondition(GlobalStatus.Begin);
sessionCondition.setLazyLoadBranch(true);
Collection beginGlobalsessions =
SessionHolder.getRootSessionManager().findGlobalSessions(sessionCondition);
if (CollectionUtils.isEmpty(beginGlobalsessions)) {
return;
}
if (!beginGlobalsessions.isEmpty() && LOGGER.isDebugEnabled()) {
LOGGER.debug("Global transaction timeout check begin, size: {}", beginGlobalsessions.size());
}
SessionHelper.forEach(beginGlobalsessions, globalSession -> {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug(
globalSession.getXid() + " " + globalSession.getStatus() + " " + globalSession.getBeginTime() + " "
+ globalSession.getTimeout());
}
SessionHolder.lockAndExecute(globalSession, () -> {
if (globalSession.getStatus() != GlobalStatus.Begin || !globalSession.isTimeout()) {
return false;
}
LOGGER.info("Global transaction[{}] is timeout and will be rollback.", globalSession.getXid());
globalSession.addSessionLifecycleListener(SessionHolder.getRootSessionManager());
globalSession.close();
globalSession.setStatus(GlobalStatus.TimeoutRollbacking);
globalSession.addSessionLifecycleListener(SessionHolder.getRetryRollbackingSessionManager());
SessionHolder.getRetryRollbackingSessionManager().addGlobalSession(globalSession);
// transaction timeout and start rollbacking event
MetricsPublisher.postSessionDoingEvent(globalSession, GlobalStatus.TimeoutRollbacking.name(), false, false);
return true;
});
});
if (!beginGlobalsessions.isEmpty() && LOGGER.isDebugEnabled()) {
LOGGER.debug("Global transaction timeout check end. ");
}
}
/**
* Handle retry rollbacking.
*/
protected void handleRetryRollbacking() {
SessionCondition sessionCondition = new SessionCondition(rollbackingStatuses);
sessionCondition.setLazyLoadBranch(true);
Collection rollbackingSessions =
SessionHolder.getRetryRollbackingSessionManager().findGlobalSessions(sessionCondition);
if (CollectionUtils.isEmpty(rollbackingSessions)) {
return;
}
long now = System.currentTimeMillis();
SessionHelper.forEach(rollbackingSessions, rollbackingSession -> {
try {
// prevent repeated rollback
if (rollbackingSession.getStatus() == GlobalStatus.Rollbacking
&& !rollbackingSession.isDeadSession()) {
// The function of this 'return' is 'continue'.
return;
}
if (isRetryTimeout(now, MAX_ROLLBACK_RETRY_TIMEOUT.toMillis(), rollbackingSession.getBeginTime())) {
if (ROLLBACK_RETRY_TIMEOUT_UNLOCK_ENABLE) {
rollbackingSession.clean();
}
// Prevent thread safety issues
SessionHolder.getRetryRollbackingSessionManager().removeGlobalSession(rollbackingSession);
LOGGER.error("Global transaction rollback retry timeout and has removed [{}]", rollbackingSession.getXid());
SessionHelper.endRollbackFailed(rollbackingSession, true, true);
//The function of this 'return' is 'continue'.
return;
}
rollbackingSession.addSessionLifecycleListener(SessionHolder.getRootSessionManager());
core.doGlobalRollback(rollbackingSession, true);
} catch (TransactionException ex) {
LOGGER.info("Failed to retry rollbacking [{}] {} {}", rollbackingSession.getXid(), ex.getCode(), ex.getMessage());
}
});
}
/**
* Handle retry committing.
*/
protected void handleRetryCommitting() {
SessionCondition retryCommittingSessionCondition = new SessionCondition(retryCommittingStatuses);
retryCommittingSessionCondition.setLazyLoadBranch(true);
Collection committingSessions =
SessionHolder.getRetryCommittingSessionManager().findGlobalSessions(retryCommittingSessionCondition);
if (CollectionUtils.isEmpty(committingSessions)) {
return;
}
long now = System.currentTimeMillis();
SessionHelper.forEach(committingSessions, committingSession -> {
try {
// prevent repeated commit
if (committingSession.getStatus() == GlobalStatus.Committing
&& !committingSession.isDeadSession()) {
// The function of this 'return' is 'continue'.
return;
}
if (isRetryTimeout(now, MAX_COMMIT_RETRY_TIMEOUT.toMillis(), committingSession.getBeginTime())) {
// Prevent thread safety issues
SessionHolder.getRetryCommittingSessionManager().removeGlobalSession(committingSession);
LOGGER.error("Global transaction commit retry timeout and has removed [{}]", committingSession.getXid());
// commit retry timeout event
SessionHelper.endCommitFailed(committingSession, true, true);
//The function of this 'return' is 'continue'.
return;
}
committingSession.addSessionLifecycleListener(SessionHolder.getRootSessionManager());
core.doGlobalCommit(committingSession, true);
} catch (TransactionException ex) {
LOGGER.info("Failed to retry committing [{}] {} {}", committingSession.getXid(), ex.getCode(), ex.getMessage());
}
});
}
/**
* Handle async committing.
*/
protected void handleAsyncCommitting() {
SessionCondition sessionCondition = new SessionCondition(GlobalStatus.AsyncCommitting);
Collection asyncCommittingSessions =
SessionHolder.getAsyncCommittingSessionManager().findGlobalSessions(sessionCondition);
if (CollectionUtils.isEmpty(asyncCommittingSessions)) {
return;
}
SessionHelper.forEach(asyncCommittingSessions, asyncCommittingSession -> {
try {
asyncCommittingSession.addSessionLifecycleListener(SessionHolder.getRootSessionManager());
core.doGlobalCommit(asyncCommittingSession, true);
} catch (TransactionException ex) {
LOGGER.error("Failed to async committing [{}] {} {}", asyncCommittingSession.getXid(), ex.getCode(), ex.getMessage(), ex);
}
});
}
/**
* Undo log delete.
*/
protected void undoLogDelete() {
Map rmChannels = ChannelManager.getRmChannels();
if (rmChannels == null || rmChannels.isEmpty()) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("no active rm channels to delete undo log");
}
return;
}
short saveDays = CONFIG.getShort(ConfigurationKeys.TRANSACTION_UNDO_LOG_SAVE_DAYS,
UndoLogDeleteRequest.DEFAULT_SAVE_DAYS);
for (Map.Entry channelEntry : rmChannels.entrySet()) {
String resourceId = channelEntry.getKey();
UndoLogDeleteRequest deleteRequest = new UndoLogDeleteRequest();
deleteRequest.setResourceId(resourceId);
deleteRequest.setSaveDays(saveDays > 0 ? saveDays : UndoLogDeleteRequest.DEFAULT_SAVE_DAYS);
try {
remotingServer.sendAsyncRequest(channelEntry.getValue(), deleteRequest);
} catch (Exception e) {
LOGGER.error("Failed to async delete undo log resourceId = {}, exception: {}", resourceId, e.getMessage());
}
}
}
private boolean isRetryTimeout(long now, long timeout, long beginTime) {
return timeout >= ALWAYS_RETRY_BOUNDARY && now - beginTime > timeout;
}
/**
* Init.
*/
public void init() {
retryRollbacking.scheduleAtFixedRate(
() -> SessionHolder.distributedLockAndExecute(RETRY_ROLLBACKING, this::handleRetryRollbacking), 0,
ROLLBACKING_RETRY_PERIOD, TimeUnit.MILLISECONDS);
retryCommitting.scheduleAtFixedRate(
() -> SessionHolder.distributedLockAndExecute(RETRY_COMMITTING, this::handleRetryCommitting), 0,
COMMITTING_RETRY_PERIOD, TimeUnit.MILLISECONDS);
asyncCommitting.scheduleAtFixedRate(
() -> SessionHolder.distributedLockAndExecute(ASYNC_COMMITTING, this::handleAsyncCommitting), 0,
ASYNC_COMMITTING_RETRY_PERIOD, TimeUnit.MILLISECONDS);
timeoutCheck.scheduleAtFixedRate(
() -> SessionHolder.distributedLockAndExecute(TX_TIMEOUT_CHECK, this::timeoutCheck), 0,
TIMEOUT_RETRY_PERIOD, TimeUnit.MILLISECONDS);
undoLogDelete.scheduleAtFixedRate(
() -> SessionHolder.distributedLockAndExecute(UNDOLOG_DELETE, this::undoLogDelete),
UNDO_LOG_DELAY_DELETE_PERIOD, UNDO_LOG_DELETE_PERIOD, TimeUnit.MILLISECONDS);
}
@Override
public AbstractResultMessage onRequest(AbstractMessage request, RpcContext context) {
if (!(request instanceof AbstractTransactionRequestToTC)) {
throw new IllegalArgumentException();
}
AbstractTransactionRequestToTC transactionRequest = (AbstractTransactionRequestToTC) request;
transactionRequest.setTCInboundHandler(this);
return transactionRequest.handle(context);
}
@Override
public void onResponse(AbstractResultMessage response, RpcContext context) {
if (!(response instanceof AbstractTransactionResponse)) {
throw new IllegalArgumentException();
}
}
@Override
public void destroy() {
// 1. first shutdown timed task
retryRollbacking.shutdown();
retryCommitting.shutdown();
asyncCommitting.shutdown();
timeoutCheck.shutdown();
undoLogDelete.shutdown();
branchRemoveExecutor.shutdown();
try {
retryRollbacking.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
retryCommitting.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
asyncCommitting.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
timeoutCheck.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
undoLogDelete.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
branchRemoveExecutor.awaitTermination(TIMED_TASK_SHUTDOWN_MAX_WAIT_MILLS, TimeUnit.MILLISECONDS);
} catch (InterruptedException ignore) {
}
// 2. second close netty flow
if (remotingServer instanceof NettyRemotingServer) {
((NettyRemotingServer) remotingServer).destroy();
}
// 3. third destroy SessionHolder
SessionHolder.destroy();
instance = null;
}
/**
* only used for mock test
* @param remotingServer
*/
public void setRemotingServer(RemotingServer remotingServer) {
this.remotingServer = remotingServer;
}
/**
* the task to remove branchSession
*/
static class BranchRemoveTask implements Runnable {
/**
* the globalSession
*/
private final GlobalSession globalSession;
/**
* the branchSession
*/
private final BranchSession branchSession;
/**
* If you use this construct, the task will remove the branchSession provided by the parameter
* @param globalSession the globalSession
*/
public BranchRemoveTask(GlobalSession globalSession, BranchSession branchSession) {
this.globalSession = globalSession;
this.branchSession = branchSession;
}
/**
* If you use this construct, the task will remove all branchSession
* @param globalSession the globalSession
*/
public BranchRemoveTask(GlobalSession globalSession) {
this.globalSession = globalSession;
this.branchSession = null;
}
@Override
public void run() {
if (globalSession == null) {
return;
}
try {
MDC.put(RootContext.MDC_KEY_XID, globalSession.getXid());
if (branchSession != null) {
doRemove(branchSession);
} else {
globalSession.getSortedBranches().forEach(this::doRemove);
}
} catch (Exception unKnowException) {
LOGGER.error("Asynchronous delete branchSession error, xid = {}", globalSession.getXid(), unKnowException);
} finally {
MDC.remove(RootContext.MDC_KEY_XID);
}
}
private void doRemove(BranchSession bt) {
try {
MDC.put(RootContext.MDC_KEY_BRANCH_ID, String.valueOf(bt.getBranchId()));
globalSession.removeBranch(bt);
LOGGER.info("Asynchronous delete branchSession successfully, xid = {}, branchId = {}",
globalSession.getXid(), bt.getBranchId());
} catch (TransactionException transactionException) {
LOGGER.error("Asynchronous delete branchSession error, xid = {}, branchId = {}",
globalSession.getXid(), bt.getBranchId(), transactionException);
} finally {
MDC.remove(RootContext.MDC_KEY_BRANCH_ID);
}
}
}
}
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