Apache Flink写入Clickhouse报错 code: 1002, ip:8123 failed to respond_终回首

irpas 02-07 1401

目录版本一、问题1 问题描述2 日志二、解决解决过程1 升级驱动jar包版本(无效)2 修改连接参数（无效）3 修改服务端参数（有效）4 修改获取连接方式（todo）参考资料

版本

ClickHouse server version 21.12.2 驱动版本:0.2.4

一、问题 1 问题描述

flink任务读取kafka消息，处理，JDBC方式写入到clickhouse。开始运行时可以写入个几万条，过30分钟左右报错。

Caused by: ru.yandex.clickhouse.except.ClickHouseUnknownException: ClickHouse exception, code: 1002, host: 192.168.66.66, port: 8123; 192.168.66.66:8123 failed to respond

2 日志 Cause: ru.yandex.clickhouse.except.ClickHouseUnknownException: ClickHouse exception, code: 1002, host: 192.168.66.66, port: 8123; 192.168.66.66:8123 failed to respond at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:153) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:76) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:87) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[sale-1.0-SNAPSHOT.jar:?] at com.sun.proxy.$Proxy34.insert(Unknown Source) ~[?:?] at com.tanjiu.realtime.common.func.ClickhouseSink.invoke(ClickhouseSink.java:52) ~[sale-1.0-SNAPSHOT.jar:?] at com.tanjiu.realtime.common.func.ClickhouseSink.invoke(ClickhouseSink.java:18) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:56) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:52) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:30) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.StreamMap.processElement(StreamMap.java:41) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:53) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.queue.StreamRecordQueueEntry.emitResult(StreamRecordQueueEntry.java:65) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.queue.UnorderedStreamElementQueue$Segment.emitCompleted(UnorderedStreamElementQueue.java:263) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.queue.UnorderedStreamElementQueue.emitCompletedElement(UnorderedStreamElementQueue.java:150) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.AsyncWaitOperator.outputCompletedElement(AsyncWaitOperator.java:280) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.AsyncWaitOperator.access$100(AsyncWaitOperator.java:78) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.AsyncWaitOperator$ResultHandler.processResults(AsyncWaitOperator.java:352) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.api.operators.async.AsyncWaitOperator$ResultHandler.lambda$processInMailbox$0(AsyncWaitOperator.java:337) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:47) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:78) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:283) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:184) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:575) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:539) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:722) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.flink.runtime.taskmanager.Task.run(Task.java:547) ~[sale-1.0-SNAPSHOT.jar:?] at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_181] Caused by: ru.yandex.clickhouse.except.ClickHouseUnknownException: ClickHouse exception, code: 1002, host: 192.168.66.66, port: 8123; 192.168.66.66:8123 failed to respond at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.getException(ClickHouseExceptionSpecifier.java:91) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:55) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:24) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.getInputStream(ClickHouseStatementImpl.java:633) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:117) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:100) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:95) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:90) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.execute(ClickHouseStatementImpl.java:226) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHousePreparedStatementImpl.execute(ClickHousePreparedStatementImpl.java:105) ~[sale-1.0-SNAPSHOT.jar:?] at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:89) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151) ~[sale-1.0-SNAPSHOT.jar:?] ... 36 more Caused by: org.apache.http.NoHttpResponseException: 192.168.66.66:8123 failed to respond at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:143) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:165) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:167) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:272) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:124) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:271) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.getInputStream(ClickHouseStatementImpl.java:614) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:117) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:100) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:95) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:90) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHouseStatementImpl.execute(ClickHouseStatementImpl.java:226) ~[sale-1.0-SNAPSHOT.jar:?] at ru.yandex.clickhouse.ClickHousePreparedStatementImpl.execute(ClickHousePreparedStatementImpl.java:105) ~[sale-1.0-SNAPSHOT.jar:?] at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:89) ~[sale-1.0-SNAPSHOT.jar:?] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151) ~[sale-1.0-SNAPSHOT.jar:?] ... 36 more 二、解决

搜索发现有几个相关的已经是closed状态的bug，那应该是可以通过改配置或包的方式解决。

https://github.com/ClickHouse/clickhouse-jdbc/issues/478https://github.com/ClickHouse/clickhouse-jdbc/issues/290 解决过程 1 升级驱动jar包版本(无效)  <dependency> <groupId>ru.yandex.clickhouse</groupId> <artifactId>clickhouse-jdbc</artifactId> <version>0.3.1-patch</version> </dependency>

改完后报错仍旧出现，看来和驱动包相关性不大

2 修改连接参数（无效）

这里我用druid连的clickhouse，尝试调整一下参数

DruidDataSource druidDataSource = new DruidDataSource(); //Setting up driver druidDataSource.setDriverClassName("ru.yandex.clickhouse.ClickHouseDriver"); druidDataSource.setUrl(url); druidDataSource.setUsername(user); druidDataSource.setPassword(password); // 解决 failed to respond 问题 druidDataSource.setInitialSize(1); druidDataSource.setMaxActive(2); druidDataSource.setMaxWait(6000); druidDataSource.setMinIdle(12); druidDataSource.setTimeBetweenEvictionRunsMillis(60000); druidDataSource.setValidationQuery("select 1"); druidDataSource.setMinEvictableIdleTimeMillis(300000); druidDataSource.setMaxEvictableIdleTimeMillis(900000); druidDataSource.setTestWhileIdle(true); druidDataSource.setTestOnBorrow(false); druidDataSource.setTestOnReturn(false); druidDataSource.setKeepAlive(true); druidDataSource.setPoolPreparedStatements(true); druidDataSource.setMaxOpenPreparedStatements(20); druidDataSource.setAsyncInit(true);

依旧报错

3 修改服务端参数（有效） # pwd /etc/clickhouse-server # ls config.d config.xml metrika.xml users.d users.xml # vim config.xml

查看连接超时时间的配置，发现配置是3 查看官方文档发现官方默认参数是10，这里修改为30 修改完目前已经可以正常写入，3天未出现报错，问题基本解决。

4 修改获取连接方式（todo）

当前获取连接的流程

当前获取连接的时候是先去缓存里找；如果缓存没有就新建一个连接加入到缓存中返回连接；如果缓存存在连接，就直接从缓存中获取，返回；

找资料的时候偶然看到这位大佬的话突然想到自己获取连接的方式，可能需要处理一下。或许可以尝试每次都获取新连接，用完后则立刻关闭，不再缓存。

参考资料

官方文档 Clickhouse错误问题汇总 ClickHouse到底该写本地表还是分布式表