Cbupgrade Process Reports Error 400 Cycle Detected or Stuck on Migrating Events

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

After starting the cbupgrade process it appears to be stuck migrating events during the Solr portion. 

• A proxy is in place 

  cat /etc/environment | grep 'proxy'

• The following error may be seen. 

  Request to http://127.0.0.1:8080/solr/cbmodules/select failed with error < 400 cycle detected

• Running this command creates similar behavior 

  curl "http://127.0.0.1:8080/solr/admin/cores?action=STATUS&wt=json&indexInfo=false&indent=true"

 

Environment

• EDR Server: All Supported Versions
• Linux: All Supported Versions

Cause

The above error is generated when the server is configured to use a proxy server. The call to 127.0.0.1/localhost is not processed correctly 

Resolution

Add the following to the proxy configuration files 

• /etc/profile.d/http_proxy.sh 

  export no_proxy=127.0.0.1,localhost

• /etc/environment 

  export no_proxy=127.0.0.1,localhost

   

Additional Information

• The configuration can also be tested with the curl command before attempting upgrade again. 

  curl "http://127.0.0.1:8080/solr/admin/cores?action=STATUS&wt=json&indexInfo=false&indent=true"

   
• If the proxy is not configured properly the result returned from the curl command will be similar to the error reported during cbupgrade or the command will hang.