taosdata/TDengine

java.sql.SQLException: ERROR (0x2318): java.util.concurrent.TimeoutException: ERROR (0x231e): failed to complete the task within the specified time

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#23,615 opened on Nov 9, 2023

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Description

TDengine使用的3.2.0.0版本，驱动版本为3.2.7。 执行subscribe方法时不报错，但是执行poll方法时可能会报错。 消费者组中有两个消费者，报错的为其中固定的一个。执行poll方法时，可能会阻塞一段时间然后报错，也可能正常执行。 错误信息：Caused by: java.sql.SQLException: ERROR (0x2318): java.util.concurrent.TimeoutException: ERROR (0x231e): failed to complete the task:{"action":"poll","args":{"blocking_time":100,"req_id":2}} within the specified time : 60000,MILLISECONDS at com.taosdata.jdbc.TSDBError.createSQLException(TSDBError.java:87) at com.taosdata.jdbc.ws.Transport.send(Transport.java:90) at com.taosdata.jdbc.ws.tmq.WSConsumer.poll(WSConsumer.java:109) at com.taosdata.jdbc.tmq.TaosConsumer.poll(TaosConsumer.java:93) at com.uniorange.dcs.consumer.ConsumerHandler.execute(ConsumerHandler.java:101) 此错误只在集群模式下会有，单体模式下消费者组可以正常使用 尝试增大CONNECT_MESSAGE_TIMEOUT参数的值，但是没有什么效果

Contributor guide

Research direction
Investigate the WebSocket transport timeout handling in the poll method of WSConsumer (com.taosdata.jdbc.ws.tmq.WSConsumer.poll). Focus on differences between cluster and single mode. Check the CONNECT MESSAGE TIMEOUT parameter usage. Look for potential blocking or timeout issues in the Transport.send method.
Tech stack
java
Domain
backenddatabase
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
JavaGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40