Suspend activity for an entire partition because of Zowe

Products

• Brightside
• Zowe
• EUREKA:Object
• EUREKA:Reporter
• EUREKA:Strategy

Issue/Introduction

A partition was capped due to a lack of CPU. Because of this lack of CPU, ZOWE lost its connection to Eureka and attempted to reconnect every 30 seconds, which made the situation worse. Connectivity to the partition was only restored after the ZOWE process was killed.

 

here are the log messages:

2026-04-02 19:10:45.814 <ZWED:50331793> ZWESVUSA WARN (_zsf.apiml,EurekaClient.js:710) Eureka request failed to endpoint https://sy
2026-04-02 19:10:48.912 <ZWED:50331793> ZWESVUSA CRITICAL (_zsf.apiml,EurekaClient.js:703) Problem making eureka request Error: con
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1610:16) 
  errno: -1127,
  code: 'ETIMEDOUT',
  syscall: 'connect',
  address: 'aaa.bb.ccc.d',
  port: abcdef

Environment

ZOWE BASE - Brightside 3.0

Resolution

Increase/change the Eureka heartbeat  frequency by adding these variables in zowe.yaml:

environments:
    EUREKA_CLIENT_INSTANCEINFOREPLICATIONINTERVALSECONDS: 30
    EUREKA_CLIENT_REGISTRYFETCHINTERVALSECONDS: 30