Flink sql cdc 锁超时

Tue, 10 Nov 2020 19:29:54 -0800 

当我使用flink cdc 对多张表进行关联查询时其中的一张表总是会有锁超时的情况，导致任务无法正常启动，
请问这种情况应该如何处理？
org.apache.kafka.connect.errors.ConnectException: Lock wait timeout exceeded; 
try restarting transaction Error code: 1205; SQLSTATE: 40001.
        at 
io.debezium.connector.mysql.AbstractReader.wrap(AbstractReader.java:230)
        at 
io.debezium.connector.mysql.AbstractReader.failed(AbstractReader.java:207)
        at 
io.debezium.connector.mysql.SnapshotReader.execute(SnapshotReader.java:831)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock 
wait timeout exceeded; try restarting transaction
        at 
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:123)
        at 
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
        at 
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
        at 
com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:782)
        at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:666)
        at 
io.debezium.jdbc.JdbcConnection.executeWithoutCommitting(JdbcConnection.java:1201)
        at 
io.debezium.connector.mysql.SnapshotReader.execute(SnapshotReader.java:465)
        ... 3 more

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