[FLINK-35301][cdc] fix deadlock when loading driver classes #3300
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leonardBang
reviewed
May 24, 2024
| @@ -43,6 +45,7 @@ public HikariDataSource createPooledDataSource(JdbcSourceConfig sourceConfig) { | |||
| config.setMinimumIdle(MINIMUM_POOL_SIZE); | |||
| config.setMaximumPoolSize(sourceConfig.getConnectionPoolSize()); | |||
| config.setConnectionTimeout(sourceConfig.getConnectTimeout().toMillis()); | |||
| DriverManager.getDrivers(); | |||
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In JDK 8 and earlier version, if multiple threads invoke
Class.forName("com.xx.Driver")simultaneously, it may cause jdbc driver deadlock.FLINK-19435 analyzes this problem.