# Connect Timeout error when starting tasks post upgrade

**URL:** <https://forum.confluent.io/t/connect-timeout-error-when-starting-tasks-post-upgrade/10816>\
**Category:** Kafka Connect\
**Created:** [6 June 2024 02:15 UTC](https://forum.confluent.io/t/connect-timeout-error-when-starting-tasks-post-upgrade/10816 "2024-06-06T02:15:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![joelmin93](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/joelmin93/32/3810_2.png) [@joelmin93](https://forum.confluent.io/u/joelmin93)\
**Post date:** [6 June 2024 02:15 UTC](https://forum.confluent.io/t/connect-timeout-error-when-starting-tasks-post-upgrade/10816/1 "2024-06-06T02:15:05Z")

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Hi,

We have java sink connectors recently upgraded kafka connect from 5.3.1 to 7.3.1.

Post upgrade, we have noticed intermittent Timeout errors when starting the connector tasks, resulting connector failure. Stacktrace below:

**Event** : [Worker clientId=connect-1, groupId=tst-entitlements-sap-customer-sink-connector] Failed to reconfigure connector’s tasks (tst-entitlements-sap-customer-sink-connector), retrying after backoff:

**Stacktrace** : org.apache.kafka.connect.runtime.rest.errors.ConnectRestException: IO Error trying to forward REST request: java.net.SocketTimeoutException: Connect Timeout | at org.apache.kafka.connect.runtime.rest.RestClient.httpRequest(RestClient.java:144) | at org.apache.kafka.connect.runtime.distributed.DistributedHerder.lambda$reconfigureConnector$32(DistributedHerder.java:1607) | at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) | at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) | at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) | at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) | at java.base/java.lang.Thread.run(Thread.java:829) |Caused by: java.util.concurrent.ExecutionException: java.net.SocketTimeoutException: Connect Timeout | at org.eclipse.jetty.client.util.FutureResponseListener.getResult(FutureResponseListener.java:118) | at org.eclipse.jetty.client.util.FutureResponseListener.get(FutureResponseListener.java:101) | at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:732) | at org.apache.kafka.connect.runtime.rest.RestClient.httpRequest(RestClient.java:125) | … 6 more |Caused by: java.net.SocketTimeoutException: Connect Timeout | at org.eclipse.jetty.io.ManagedSelector$Connect.run(ManagedSelector.java:955) | at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) | at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) | at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) | … 3 more

**Source:** org.apache.kafka.connect.runtime.distributed.DistributedHerder

Can you please advice why this timeout is happening? Or at least what exactly it’s trying to do that’s timing out?

Many thanks,

Joel

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**Author:** ![system](https://us1.discourse-cdn.com/flex019/uploads/confluentcommunity/original/1X/c49438c90c9df282e9996fdf6971be890c71b65a.svg) [@system](https://forum.confluent.io/u/system)\
**Post date:** [6 July 2024 02:15 UTC](https://forum.confluent.io/t/connect-timeout-error-when-starting-tasks-post-upgrade/10816/2 "2024-07-06T02:15:37Z")

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Closed on 6 July 2024 02:15 UTC

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