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https://issues.apache.org/jira/browse/FLINK-36051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17878674#comment-17878674
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Jiabao Sun edited comment on FLINK-36051 at 9/3/24 1:26 AM:
------------------------------------------------------------
fixed via flink-connector-jdbc main: 1fcb9dd43a496778ee9e717657fcccdd116078cd
was (Author: JIRAUSER304154):
fixed via flink-connector-jdbc master: 1fcb9dd43a496778ee9e717657fcccdd116078cd
> JDBC sink doesn't re-prepare invalidated prepared statements
> ------------------------------------------------------------
>
> Key: FLINK-36051
> URL: https://issues.apache.org/jira/browse/FLINK-36051
> Project: Flink
> Issue Type: Bug
> Components: Connectors / JDBC
> Reporter: Sergei Morozov
> Assignee: Sergei Morozov
> Priority: Major
> Labels: pull-request-available
> Fix For: jdbc-3.3.0
>
>
> An SQL Server sink connector may fail with the following exception:
> {code}
> java.io.IOException: Writing records to JDBC failed.
> at
> org.apache.flink.connector.jdbc.internal.JdbcOutputFormat.writeRecord(JdbcOutputFormat.java:198)
> at
> org.apache.flink.connector.jdbc.internal.GenericJdbcSinkFunction.invoke(GenericJdbcSinkFunction.java:57)
> at
> org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:54)
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:82)
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:68)
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:62)
> at
> org.apache.flink.streaming.api.operators.LegacyKeyedProcessOperator$ContextImpl.output(LegacyKeyedProcessOperator.java:134)
> at
> com.acme.flink.job.AcmeFlinkJob$1.processElement(AcmeFlinkJob.java:123)
> at
> com.acme.flink.job.AcmeFlinkJob$1.processElement(AcmeFlinkJob.java:118)
> at
> org.apache.flink.streaming.api.operators.LegacyKeyedProcessOperator.processElement(LegacyKeyedProcessOperator.java:88)
> at
> org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:233)
> at
> org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.processElement(AbstractStreamTaskNetworkInput.java:134)
> at
> org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:105)
> at
> org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:519)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:203)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:807)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:756)
> at
> org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
> at
> org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563)
> at java.base/java.lang.Thread.run(Thread.java:831)
> Caused by: java.io.IOException: java.sql.BatchUpdateException: Could not find
> prepared statement with handle 1.
> at
> org.apache.flink.connector.jdbc.internal.JdbcOutputFormat.flush(JdbcOutputFormat.java:222)
> at
> org.apache.flink.connector.jdbc.internal.JdbcOutputFormat.writeRecord(JdbcOutputFormat.java:195)
> ... 22 more
> Caused by: java.sql.BatchUpdateException: Could not find prepared statement
> with handle 1.
> at
> com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeBatch(SQLServerPreparedStatement.java:2231)
> at
> org.apache.flink.connector.jdbc.statement.FieldNamedPreparedStatementImpl.executeBatch(FieldNamedPreparedStatementImpl.java:65)
> at
> org.apache.flink.connector.jdbc.internal.executor.TableSimpleStatementExecutor.executeBatch(TableSimpleStatementExecutor.java:64)
> at
> org.apache.flink.connector.jdbc.internal.executor.TableBufferReducedStatementExecutor.executeBatch(TableBufferReducedStatementExecutor.java:101)
> at
> org.apache.flink.connector.jdbc.internal.JdbcOutputFormat.attemptFlush(JdbcOutputFormat.java:246)
> at
> org.apache.flink.connector.jdbc.internal.JdbcOutputFormat.flush(JdbcOutputFormat.java:216)
> ... 23 more
> {code}
> While the connector can handle connection-level errors (see FLINK-16681), it
> doesn't handle the statement-level ones.
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