[JENKINS-28759] Batch steps on slaves randomly hang when complete

Batch steps that succeed are hanging, more frequently since the upgrade to Jenkins 1.6.16 + WF 1.7; I think this is recent, I do not recall encountering such issues with Jenkins 1.6.09 + WF 1.5. This is highly problematic for workflow scripts that rely on large numbers of batch steps. Note, the slave nodes in question may be considered "high-latency" with response times occasionally in seconds.

Reproduced 2 out of 4 times using the following test idiom, increasing the below loop to 1000 will probably make it a 100% reproduction, parallelizing anecdotally seems to increase reproduction:

node('slave') {

  for( int i = 0; i < 100; ++i ) {

    echo "i=${i}"

    bat **

  }

}

---
Originally reported by sumdumgai, imported from: Batch steps on slaves randomly hang when complete

• status: Open
  
• priority: Critical
  
• component(s): durable-task-plugin
  
• label(s): batch, pipeline, triaged-2018-11, windows
  
• resolution: Unresolved
  
• votes: 19
  
• watchers: 29
  
• imported: 2025-12-09
  

Batch steps that succeed are hanging, more frequently since the upgrade to Jenkins 1.6.16 + WF 1.7; I think this is recent, I do not recall encountering such issues with Jenkins 1.6.09 + WF 1.5.  This is highly problematic for workflow scripts that rely on large numbers of batch steps.  Note, the slave nodes in question may be considered "high-latency" with response times occasionally in seconds.


Reproduced 2 out of 4 times using the following test idiom, increasing the below loop to 1000 will probably make it a 100% reproduction, parallelizing anecdotally seems to increase reproduction:




node('slave') {

  for( int i = 0; i < 100; ++i ) {

    echo "i=${i}"

    bat *<some batch step that takes variable time to run, eg scm or make>*

  }

}

environment

```
Jenkins 1.6.16

Workflow 1.8

Windows 8.1 Slaves
```