【 使用环境 】生产环境 or 测试环境
【 OB or 其他组件 】OBCE
【 使用版本 】OBCE-4.2.18
【问题描述】操作OceanBase失败，错误信息: (conn=3221698692) Size overflow
【复现路径】问题出现前后相关操作
【附件及日志】推荐使用OceanBase敏捷诊断工具obdiag收集诊断信息,详情参见链接（右键跳转查看）：
【备注】基于 LLM 和开源文档 RAG 的论坛小助手已开放测试，在发帖时输入 [@论坛小助手] 即可召唤小助手，欢迎试用！
ocp 显示obsserver 掉线，在ocp重启observer，任务卡在 Sync cluster info ,登录后台查看 集群 登录正常，怀疑是ocp 误报，然后回滚此任务，发现把此台observer 给停掉了，造成大量的故障告警。
ocp 回滚任务能不能做下判断， 有些 误报的操作 就不要回滚了，只回滚任务状态就行。
2025-03-03 10:00:27.616 ERROR 29880 --- [manual-subtask-executor3,58498be17ccd7c0b,52a96569f8d68efa] c.o.o.c.t.e.c.w.subtask.SubtaskExecutor : Size overflow
java.sql.SQLTransientConnectionException: Size overflow
at com.oceanbase.jdbc.internal.util.exceptions.ExceptionFactory.createException(ExceptionFactory.java:128)
at com.oceanbase.jdbc.internal.util.exceptions.ExceptionFactory.create(ExceptionFactory.java:230)
at com.oceanbase.jdbc.JDBC4ResultSet.getNextRow(JDBC4ResultSet.java:619)
at com.oceanbase.jdbc.JDBC4ResultSet.addStreamingValue(JDBC4ResultSet.java:577)
at com.oceanbase.jdbc.JDBC4ResultSet.fetchAllResults(JDBC4ResultSet.java:514)
at com.oceanbase.jdbc.JDBC4ResultSet.<init>(JDBC4ResultSet.java:238)
at com.oceanbase.jdbc.internal.com.read.resultset.SelectResultSet.<init>(SelectResultSet.java:67)
at com.oceanbase.jdbc.internal.protocol.AbstractQueryProtocol.readResultSet(AbstractQueryProtocol.java:2513)
at com.oceanbase.jdbc.internal.protocol.AbstractQueryProtocol.readPacket(AbstractQueryProtocol.java:2225)
at com.oceanbase.jdbc.internal.protocol.AbstractQueryProtocol.getResult(AbstractQueryProtocol.java:2098)
at com.oceanbase.jdbc.internal.protocol.AbstractQueryProtocol.executeQuery(AbstractQueryProtocol.java:399)
at com.oceanbase.jdbc.JDBC4PreparedStatement.executeInternal(JDBC4PreparedStatement.java:247)
at com.oceanbase.jdbc.JDBC4PreparedStatement.execute(JDBC4PreparedStatement.java:170)
at com.oceanbase.jdbc.JDBC4PreparedStatement.executeQuery(JDBC4PreparedStatement.java:184)
at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:227)
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:724)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:650)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:715)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:746)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:759)
at org.sp
ringframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:812)
at com.oceanbase.ocp.obsdk.connector.ConnectTemplate.query(ConnectTemplate.java:91)
at com.oceanbase.ocp.obsdk.operator.parameter.MysqlParameterOperator.listClusterParametersLike(MysqlParameterOperator.java:84)
at com.oceanbase.ocp.obsdk.operator.parameter.MysqlParameterOperator.getClusterParameter(MysqlParameterOperator.java:94)
at com.oceanbase.ocp.obops.internal.cluster.ClusterSyncServiceImpl.checkObClusterName(ClusterSyncServiceImpl.java:557)
at com.oceanbase.ocp.obops.internal.cluster.ClusterSyncServiceImpl.internalSyncCluster(ClusterSyncServiceImpl.java:346)
at com.oceanbase.ocp.obops.internal.cluster.ClusterSyncServiceImpl.syncClusterInfo(ClusterSyncServiceImpl.java:261)
at com.oceanbase.ocp.service.task.business.cluster.SyncClusterInfoTask.lambda$run$0(SyncClusterInfoTask.java:45)
at com.oceanbase.ocp.common.lang.pattern.Retry.lambda$executeUntilSuccessWithLimit$2(Retry.java:182)
at com.oceanbase.ocp.common.lang.pattern.Retry.executeUntilSuccessWithLimit(Retry.java:159)
at com.oceanbase.ocp.common.lang.pattern.Retry.executeUntilSuccessWithLimit(Retry.java:181)
at com.oceanbase.ocp.service.task.business.cluster.SyncClusterInfoTask.run(SyncClusterInfoTask.java:44)
at com.oceanbase.ocp.core.task.runtime.Subtask.retry(Subtask.java:49)
at com.oceanbase.ocp.core.task.engine.runner.JavaSubtaskRunner.retry(JavaSubtaskRunner.java:76)
at com.oceanbase.ocp.core.task.engine.runner.JavaSubtaskRunner.doRun(JavaSubtaskRunner.java:35)
at com.oceanbase.ocp.core.task.engine.runner.JavaSubtaskRunner.run(JavaSubtaskRunner.java:26)
at com.oceanbase.ocp.core.task.engine.runner.RunnerFactory.doRun(RunnerFactory.java:76)
at com.oceanbase.ocp.core.task.engine.coordinator.worker.subtask.SubtaskExecutor.doRun(SubtaskExecutor.java:206)
at com.oceanbase.ocp.core.task.engine.coordinator.worker.subtask.SubtaskExecutor.redirectConsoleOutput(SubtaskExecutor.java:200)
at com.oceanbase.ocp.core.task.engine.coordinator.worker.subtask.SubtaskExecutor.lambda$
submit$2(SubtaskExecutor.java:137)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
