Aurora MySQL中的瞬时查询超时（使用jOOQ，MariaDB驱动程序）

问题描述 投票：2回答：1

当我使用jOOQ和MariaDB驱动程序执行查询以连接到Aurora MySQL数据库时，我的Java应用程序运行正常。在普通SQL中，我的查询如下所示，并注意时间戳：

select
  A.id, B.x, B.y,
  coalesce(A.modified, A.created) as modified
from
  A join B on A.b_id = B.id
where
  A.created between date_sub(now(), interval 1 day) and now()
  or A.modified between date_sub(now(), interval 1 day) and now();

但是当我以较大的时间戳记间隔运行相同的查询时，它会失败并立即失败，并出现超时错误（AFAIK没有实际的超时机会），例如，此查询将立即失败（再次，请注意时间戳记：select A.id, B.x, B.y, coalesce(A.modified, A.created) as modified from A join B on A.b_id = B.id where A.created between date_sub(now(), interval 1 month) and now() or A.modified between date_sub(now(), interval 1 month) and now(); 

上面的查询在通过MySQL控制台直接连接时成功，并且在我的系统中我有一些其他长时间运行的查询，它们使用成功运行的同一堆栈，没有超时投诉。该问题仅发生在我的Java应用程序中，它的查询间隔时间很大-例如一个月（）（间隔几天），但不是全部查询。我的堆栈包括：

打开JDK 8

    jOOQ 3.11
  • MariaDB Connector / J 2.2
  • Aurora MySQL 5.6.10a
  • 我的日志中的堆栈跟踪信息（如下所示）在各处显示“连接超时”和“读取超时”。有什么想法为什么查询中较长的时间间隔会导致瞬时超时？如果需要，我将提供更多详细信息，只需在评论中提问即可。

  • UPDATE：

我将驱动程序更改为使用标准的MySQL Java驱动程序，现在查询有效！我将保留这个问题，因为我仍然想了解

why

的情况，MariaDB驱动程序发生了什么问题，以及是否有可能找到解决方法（因为我更喜欢使用MariaDB驱动程序）。org.jooq.exception.DataAccessException: SQL [<query>]; (conn=349133) Communications link failure with primary host <host>. Connection timed out at org.jooq_3.11.4.MARIADB.debug(Unknown Source) ~[?:?] at org.jooq.impl.Tools.translate(Tools.java:2384) ~[jooq-3.11.4.jar:?] at org.jooq.impl.DefaultExecuteContext.sqlException(DefaultExecuteContext.java:811) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:364) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.fetchLazy(AbstractResultQuery.java:393) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.fetchLazy(AbstractResultQuery.java:380) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.fetchStream(AbstractResultQuery.java:351) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.fetchStreamInto(AbstractResultQuery.java:356) ~[jooq-3.11.4.jar:?] <redacted> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222] Caused by: java.sql.SQLException: (conn=349133) Communications link failure with primary host <host>. Connection timed out at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:198) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:110) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbStatement.executeExceptionEpilogue(MariaDbStatement.java:228) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.executeInternal(MariaDbPreparedStatementClient.java:216) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.execute(MariaDbPreparedStatementClient.java:150) ~[Mariadb-java-client-2.2.x.jar:?] at org.jooq.tools.jdbc.DefaultPreparedStatement.execute(DefaultPreparedStatement.java:209) ~[jooq-3.11.4.jar:?] at org.jooq.impl.Tools.executeStatementAndGetFirstResultSet(Tools.java:3483) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.execute(AbstractResultQuery.java:268) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:350) ~[jooq-3.11.4.jar:?] ... 17 more Caused by: java.sql.SQLException: Communications link failure with primary host <host>. Connection timed out on HostAddress{host='<host>', port=3306},master=true. Driver has reconnect connection at org.mariadb.jdbc.internal.failover.AbstractMastersListener.throwFailoverMessage(AbstractMastersListener.java:517) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.handleFailOver(FailoverProxy.java:354) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.executeInvocation(FailoverProxy.java:292) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.invoke(FailoverProxy.java:263) ~[Mariadb-java-client-2.2.x.jar:?] at com.sun.proxy.$Proxy48.executeQuery(Unknown Source) ~[?:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.executeInternal(MariaDbPreparedStatementClient.java:209) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.execute(MariaDbPreparedStatementClient.java:150) ~[Mariadb-java-client-2.2.x.jar:?] at org.jooq.tools.jdbc.DefaultPreparedStatement.execute(DefaultPreparedStatement.java:209) ~[jooq-3.11.4.jar:?] at org.jooq.impl.Tools.executeStatementAndGetFirstResultSet(Tools.java:3483) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.execute(AbstractResultQuery.java:268) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:350) ~[jooq-3.11.4.jar:?] ... 17 more Caused by: java.sql.SQLException: Read timed out at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.handleIoException(AbstractQueryProtocol.java:1786) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.readPacket(AbstractQueryProtocol.java:1344) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.getResult(AbstractQueryProtocol.java:1323) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.executeQuery(AbstractQueryProtocol.java:252) ~[Mariadb-java-client-2.2.x.jar:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_222] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_222] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_222] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_222] at org.mariadb.jdbc.internal.failover.impl.MastersSlavesListener.invoke(MastersSlavesListener.java:217) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.executeInvocation(FailoverProxy.java:270) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.invoke(FailoverProxy.java:263) ~[Mariadb-java-client-2.2.x.jar:?] at com.sun.proxy.$Proxy48.executeQuery(Unknown Source) ~[?:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.executeInternal(MariaDbPreparedStatementClient.java:209) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.execute(MariaDbPreparedStatementClient.java:150) ~[Mariadb-java-client-2.2.x.jar:?] at org.jooq.tools.jdbc.DefaultPreparedStatement.execute(DefaultPreparedStatement.java:209) ~[jooq-3.11.4.jar:?] at org.jooq.impl.Tools.executeStatementAndGetFirstResultSet(Tools.java:3483) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.execute(AbstractResultQuery.java:268) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:350) ~[jooq-3.11.4.jar:?] ... 17 more Caused by: java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.8.0_222] at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:1.8.0_222] at java.net.SocketInputStream.read(SocketInputStream.java:171) ~[?:1.8.0_222] at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:1.8.0_222] at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) ~[?:1.8.0_222] at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) ~[?:1.8.0_222] at java.io.BufferedInputStream.read(BufferedInputStream.java:345) ~[?:1.8.0_222] at org.mariadb.jdbc.internal.io.input.StandardPacketInputStream.getPacketArray(StandardPacketInputStream.java:237) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.io.input.StandardPacketInputStream.getPacket(StandardPacketInputStream.java:207) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.readPacket(AbstractQueryProtocol.java:1342) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.getResult(AbstractQueryProtocol.java:1323) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.executeQuery(AbstractQueryProtocol.java:252) ~[Mariadb-java-client-2.2.x.jar:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_222] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_222] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_222] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_222] at org.mariadb.jdbc.internal.failover.impl.MastersSlavesListener.invoke(MastersSlavesListener.java:217) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.executeInvocation(FailoverProxy.java:270) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.internal.failover.FailoverProxy.invoke(FailoverProxy.java:263) ~[Mariadb-java-client-2.2.x.jar:?] at com.sun.proxy.$Proxy48.executeQuery(Unknown Source) ~[?:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.executeInternal(MariaDbPreparedStatementClient.java:209) ~[Mariadb-java-client-2.2.x.jar:?] at org.mariadb.jdbc.MariaDbPreparedStatementClient.execute(MariaDbPreparedStatementClient.java:150) ~[Mariadb-java-client-2.2.x.jar:?] at org.jooq.tools.jdbc.DefaultPreparedStatement.execute(DefaultPreparedStatement.java:209) ~[jooq-3.11.4.jar:?] at org.jooq.impl.Tools.executeStatementAndGetFirstResultSet(Tools.java:3483) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractResultQuery.execute(AbstractResultQuery.java:268) ~[jooq-3.11.4.jar:?] at org.jooq.impl.AbstractQuery.execute(AbstractQuery.java:350) ~[jooq-3.11.4.jar:?] ... 17 more 当我使用jOOQ和MariaDB驱动程序执行查询以连接到Aurora MySQL数据库时，我的Java应用程序运行正常。在普通的SQL中，我的查询如下所示，并注意时间戳：...
java mysql mariadb jooq amazon-rds-aurora
1个回答
0
投票

默认：0（标准配置）或10000ms（使用“ aurora”故障转移配置）。

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