Application has crashed alarm triggers on NSX Manager, with core.GC core dump file on the node

Products

• VMware NSX
• VMware NSX-T Data Center

Issue/Introduction

• Alarm "Application on NSX node {node_display_or_host_name} has crashed. The number of core files found is {core_dump_count}." triggers on NSX Manager.
• A core dump file was generated into Manager's /var/log/core directory, file name will be like "core.GC task thread#.<thread_id>.<process_id>.<service_user_id>.<id>"

Environment

• VMware NSX-T Data Center (any release)
• VMware NSX (any release)

Cause

• "core.GC task thread" is a benign core dump created by jstack process running on the Manager.

Resolution

• This core dump file can be safely removed.