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com.alipay.oceanbase.rpc.direct_load.execution.ObDirectLoadStatementExecutor Maven / Gradle / Ivy
/*-
* #%L
* com.oceanbase:obkv-table-client
* %%
* Copyright (C) 2021 - 2024 OceanBase
* %%
* OBKV Table Client Framework is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
* #L%
*/
package com.alipay.oceanbase.rpc.direct_load.execution;
import java.util.concurrent.atomic.AtomicInteger;
import com.alipay.oceanbase.rpc.direct_load.ObDirectLoadBucket;
import com.alipay.oceanbase.rpc.direct_load.ObDirectLoadConnection;
import com.alipay.oceanbase.rpc.direct_load.ObDirectLoadLogger;
import com.alipay.oceanbase.rpc.direct_load.ObDirectLoadStatement;
import com.alipay.oceanbase.rpc.direct_load.ObDirectLoadTraceId;
import com.alipay.oceanbase.rpc.direct_load.exception.*;
import com.alipay.oceanbase.rpc.direct_load.future.*;
import com.alipay.oceanbase.rpc.protocol.payload.impl.ObAddr;
public class ObDirectLoadStatementExecutor {
// begin : NONE -> PREPARE_BEGIN -> BEGINNING -> LOADING | FAIL
// commit : LOADING -> PREPARE_COMMIT -> COMMITTING -> COMMIT | FAIL
// heartbeat : LOADING -> LOADING | FAIL
// abort : LOADING | FAIL -> ABORT
private static final int NONE = 0;
private static final int BEGINNING = 1;
private static final int LOADING = 2; // 可以导入数据
private static final int COMMITTING = 3;
private static final int COMMIT = 4;
private static final int FAIL = 5;
private static final int ABORT = 6;
private AtomicInteger stateFlag = new AtomicInteger(NONE);
private final ObDirectLoadStatement statement;
private final ObDirectLoadTraceId traceId;
private final ObDirectLoadLogger logger;
private ObDirectLoadStatementFuture beginFuture = null;
private ObDirectLoadStatementFuture commitFuture = null;
private ObDirectLoadStatementHeartBeatTask heartBeatTask = null;
private ObDirectLoadStatementFuture abortFuture = null;
private long tableId = 0;
private long taskId = 0;
private ObAddr svrAddr = null;
private ObDirectLoadException cause = null; // 失败原因
public ObDirectLoadStatementExecutor(ObDirectLoadStatement statement) {
this.statement = statement;
this.traceId = statement.getTraceId();
this.logger = statement.getLogger();
}
public ObDirectLoadStatement getStatement() {
return statement;
}
public ObDirectLoadTraceId getTraceId() {
return traceId;
}
public ObDirectLoadLogger getLogger() {
return logger;
}
public long getTableId() {
return tableId;
}
public long getTaskId() {
return taskId;
}
public ObAddr getSvrAddr() {
return svrAddr;
}
public String toString() {
return String.format("{svrAddr:%s, tableId:%d, taskId:%d}", svrAddr, tableId, taskId);
}
public synchronized ObDirectLoadStatementFuture begin() {
logger.info("statement call begin");
ObDirectLoadStatementAsyncPromiseTask task = null;
try {
compareAndSetState(NONE, BEGINNING, "begin");
} catch (ObDirectLoadException e) {
logger.warn("statement begin failed", e);
return new ObDirectLoadStatementFailedFuture(statement, e);
}
try {
task = new ObDirectLoadStatementBeginTask(statement, this);
task.submit();
beginFuture = task;
} catch (ObDirectLoadException e) {
logger.warn("statement start begin failed", e);
cause = e;
tryCompareAndSetState(BEGINNING, FAIL, "set begin failure");
}
return task;
}
public synchronized ObDirectLoadStatementFuture commit() {
logger.info("statement call commit");
ObDirectLoadStatementAsyncPromiseTask task = null;
try {
compareAndSetState(LOADING, COMMITTING, "commit");
} catch (ObDirectLoadException e) {
logger.warn("statement commit failed", e);
return new ObDirectLoadStatementFailedFuture(statement, e);
}
try {
task = new ObDirectLoadStatementCommitTask(statement, this);
task.submit();
commitFuture = task;
} catch (ObDirectLoadException e) {
logger.warn("statement start commit failed", e);
cause = e;
tryCompareAndSetState(COMMITTING, FAIL, "set commit failure");
}
return task;
}
public synchronized void close() {
// 如果begin还在执行, 等待begin结束
if (beginFuture != null && !beginFuture.isDone()) {
logger.info("statement close wait begin");
try {
beginFuture.await();
} catch (ObDirectLoadInterruptedException e) {
logger.warn("statement wait begin failed");
}
}
beginFuture = null;
// 如果commit还在执行, 等待commit结束
if (commitFuture != null && !commitFuture.isDone()) {
logger.info("statement close wait commit");
try {
commitFuture.await();
} catch (ObDirectLoadInterruptedException e) {
logger.warn("statement wait commit failed");
}
}
commitFuture = null;
// 如果heart beat还在执行, 取消heart beat
if (heartBeatTask != null && !heartBeatTask.isDone()) {
logger.info("statement close wait heart beat");
final boolean canceled = heartBeatTask.cancel();
if (!canceled) {
try {
heartBeatTask.await();
} catch (ObDirectLoadInterruptedException e) {
logger.warn("statement wait heart beat failed");
}
}
}
heartBeatTask = null;
// 退出任务
abortIfNeed();
if (abortFuture != null) {
try {
if (!abortFuture.isDone()) {
logger.info("statement close wait abort");
abortFuture.await();
}
if (!abortFuture.isSuccess()) {
throw abortFuture.cause();
}
logger.info("statement abort successful");
} catch (ObDirectLoadException e) {
logger.warn("statement abort failed", e);
}
}
}
private void abortIfNeed() {
logger.debug("statement abort if need");
if (abortFuture != null) {
logger.debug("statement in abort");
return;
}
final int state = stateFlag.get();
boolean needAbort = false;
boolean unexpectedState = false;
String reason = "";
if (state == NONE) {
reason = "not begin";
} else if (state == BEGINNING) {
unexpectedState = true;
reason = "begin not finish";
} else if (state == LOADING) {
needAbort = true;
} else if (state == COMMITTING) {
unexpectedState = true;
reason = "commit not finish";
} else if (state == COMMIT) {
reason = "already commit";
} else if (state == FAIL) {
if (svrAddr != null) {
needAbort = true;
} else {
reason = "begin fail";
}
} else if (state == ABORT) {
reason = "already abort";
}
if (!needAbort) {
if (unexpectedState) {
logger.warn("statement cannot abort because " + reason);
} else {
logger.debug("statement no need abort because " + reason);
setState(ABORT);
}
} else {
abort();
}
}
private ObDirectLoadStatementFuture abort() {
logger.info("statement call abort");
setState(ABORT);
ObDirectLoadStatementAsyncPromiseTask task = null;
try {
task = new ObDirectLoadStatementAbortTask(statement, this);
task.submit();
abortFuture = task;
} catch (ObDirectLoadException e) {
logger.warn("statement start abort failed", e);
}
return task;
}
void startHeartBeat() throws ObDirectLoadException {
logger.info("statement start heart beat");
try {
ObDirectLoadStatementHeartBeatTask task = new ObDirectLoadStatementHeartBeatTask(
statement, this);
task.submit();
heartBeatTask = task;
} catch (ObDirectLoadException e) {
logger.warn("statement start heart beat failed", e);
throw e;
}
}
void stopHeartBeat() {
logger.info("statement stop heart beat");
try {
ObDirectLoadStatementHeartBeatTask task = heartBeatTask;
if (task == null) {
logger.warn("statement heart beat not start");
throw new ObDirectLoadUnexpectedException("statement heart beat not start");
}
final boolean canceled = task.cancel();
if (!canceled) {
return;
}
heartBeatTask = null;
} catch (ObDirectLoadException e) {
logger.warn("statement stop heart beat failed", e);
}
}
public void write(ObDirectLoadBucket bucket) throws ObDirectLoadException {
checkState(LOADING, "write");
ObDirectLoadStatementPromiseTask task = new ObDirectLoadStatementWriteTask(statement, this,
bucket);
task.run();
if (!task.isDone()) {
logger.warn("statement write task unexpected not done");
throw new ObDirectLoadUnexpectedException("statement write task unexpected not done");
}
if (!task.isSuccess()) {
throw task.cause();
}
}
private String getUnexpectedStateReason(int state) {
String reason = "";
if (state == NONE) {
reason = "not begin";
} else if (state == BEGINNING) {
reason = "is beginning";
} else if (state == LOADING) {
reason = "is loading";
} else if (state == COMMITTING) {
reason = "is committing";
} else if (state == COMMIT) {
reason = "is commit";
} else if (state == FAIL || state == ABORT) {
reason = "is fail";
} else {
reason = "unknow state";
}
return reason;
}
void compareAndSetState(int expect, int update, String action)
throws ObDirectLoadIllegalStateException {
if (!stateFlag.compareAndSet(expect, update)) {
final int state = stateFlag.get();
String reason = getUnexpectedStateReason(state);
String message = "statement cannot " + action + " because " + reason + ", state:"
+ state + ", expect:" + expect + ", update:" + update;
logger.warn(message);
if (cause == null) {
throw new ObDirectLoadIllegalStateException(message);
} else {
throw new ObDirectLoadIllegalStateException(message, cause);
}
}
}
boolean tryCompareAndSetState(int expect, int update, String action) {
boolean bResult = stateFlag.compareAndSet(expect, update);
if (!bResult) {
final int state = stateFlag.get();
String reason = getUnexpectedStateReason(state);
String message = "statement cannot " + action + " because " + reason + ", state:"
+ state + ", expect:" + expect + ", update:" + update;
logger.warn(message);
}
return bResult;
}
void setState(int update) {
stateFlag.set(update);
}
void checkState(int expect, String action) throws ObDirectLoadException {
final int state = stateFlag.get();
if (state != expect) {
String reason = getUnexpectedStateReason(state);
String message = "statement cannot " + action + " because " + reason + ", state:"
+ state + ", expect:" + expect;
logger.warn(message);
if (cause == null) {
throw new ObDirectLoadIllegalStateException(message);
} else {
throw new ObDirectLoadIllegalStateException(message, cause);
}
}
}
/**
* check state in range [start, end]
*/
void checkState(int start, int end, String action) throws ObDirectLoadIllegalStateException {
final int state = stateFlag.get();
if (state < start || state > end) {
String reason = getUnexpectedStateReason(state);
String message = "statement cannot " + action + " because " + reason + ", state:"
+ state + ", expect:[" + start + ", " + end + "]";
logger.warn(message);
if (cause == null) {
throw new ObDirectLoadIllegalStateException(message);
} else {
throw new ObDirectLoadIllegalStateException(message, cause);
}
}
}
BeginProxy getBeginProxy() {
return new BeginProxy(this);
}
CommitProxy getCommitProxy() {
return new CommitProxy(this);
}
WriteProxy getWriteProxy() {
return new WriteProxy(this);
}
HeartBeatProxy getHeartBeatProxy() {
return new HeartBeatProxy(this);
}
private static abstract class BaseProxy {
protected final ObDirectLoadConnection connection;
protected final ObDirectLoadStatement statement;
protected final ObDirectLoadStatementExecutor executor;
protected final ObDirectLoadLogger logger;
BaseProxy(ObDirectLoadStatementExecutor executor) {
this.executor = executor;
this.statement = executor.getStatement();
this.connection = statement.getConnection();
this.logger = statement.getLogger();
}
void checkState() throws ObDirectLoadException {
}
void checkStatus() throws ObDirectLoadException {
connection.checkStatus();
statement.checkStatus();
checkState();
statement.checkTimeout();
}
};
static final class BeginProxy extends BaseProxy {
BeginProxy(ObDirectLoadStatementExecutor executor) {
super(executor);
}
@Override
void checkState() throws ObDirectLoadException {
executor.checkState(BEGINNING, "begin");
}
void setSuccess0(ObAddr addr, long tableId, long taskId) throws ObDirectLoadException {
executor.checkState(BEGINNING, "begin");
executor.svrAddr = addr;
executor.tableId = tableId;
executor.taskId = taskId;
executor.startHeartBeat();
}
void setSuccess() throws ObDirectLoadException {
executor.compareAndSetState(BEGINNING, LOADING, "set begin success");
executor.beginFuture = null;
logger.info("statement begin successful");
}
void setFailure(ObDirectLoadException cause) {
try {
executor.compareAndSetState(BEGINNING, FAIL, "set begin failure");
} catch (ObDirectLoadException e) {
return;
}
executor.cause = cause;
logger.warn("statement begin failed", cause);
synchronized (executor) {
executor.abortIfNeed();
}
}
void clear() {
executor.stopHeartBeat();
}
};
static final class CommitProxy extends BaseProxy {
CommitProxy(ObDirectLoadStatementExecutor executor) {
super(executor);
}
@Override
void checkState() throws ObDirectLoadException {
executor.checkState(COMMITTING, "commit");
}
void setSuccess() throws ObDirectLoadException {
executor.compareAndSetState(COMMITTING, COMMIT, "set commit success");
executor.commitFuture = null;
logger.info("statement commit successful");
executor.stopHeartBeat();
}
void setFailure(ObDirectLoadException cause) {
try {
executor.compareAndSetState(COMMITTING, FAIL, "set commit failure");
} catch (ObDirectLoadException e) {
return;
}
executor.cause = cause;
logger.warn("statement commit failed", cause);
synchronized (executor) {
executor.abortIfNeed();
}
}
};
static final class WriteProxy extends BaseProxy {
WriteProxy(ObDirectLoadStatementExecutor executor) {
super(executor);
}
@Override
void checkState() throws ObDirectLoadException {
executor.checkState(LOADING, "write");
}
void setSuccess() throws ObDirectLoadException {
// do nothing
}
void setFailure(ObDirectLoadException cause) {
// do nothing
}
};
static final class HeartBeatProxy extends BaseProxy {
HeartBeatProxy(ObDirectLoadStatementExecutor executor) {
super(executor);
}
@Override
void checkState() throws ObDirectLoadException {
executor.checkState(BEGINNING, COMMIT, "heart beat");
}
void setSuccess() throws ObDirectLoadException {
// do nothing
}
void setFailure(ObDirectLoadException cause) {
try {
executor.compareAndSetState(LOADING, FAIL, "set heart beat failure");
} catch (ObDirectLoadException e) {
return;
}
executor.cause = cause;
logger.warn("statement heart beat failed", cause);
synchronized (executor) {
executor.abortIfNeed();
}
}
};
}
