Help Center > > User Guide> MRS Manager Operation Guide (Applicable to 2.x and Earlier Versions)> Alarm Reference (Applicable to Versions Earlier Than MRS 3.x)> ALM-43001 Spark Service Unavailable

ALM-43001 Spark Service Unavailable

Updated at: Aug 17, 2021 GMT+08:00


The system checks the Spark service status every 60 seconds. This alarm is generated when the Spark service is unavailable.

This alarm is cleared when the Spark service recovers.


Alarm ID

Alarm Severity

Automatically Cleared








Specifies the service for which the alarm is generated.


Specifies the role for which the alarm is generated.


Specifies the host for which the alarm is generated.

Impact on the System

The Spark tasks submitted by users fail to be executed.

Possible Causes

  • The KrbServer service is abnormal.
  • The LdapServer service is abnormal.
  • ZooKeeper is abnormal.
  • The HDFS service is abnormal.
  • The Yarn service is abnormal.
  • The corresponding Hive service is abnormal.


  1. Check whether service unavailability alarms exist in services that Spark depends on.

    1. Go to the cluster details page and choose Alarms.
    2. Check whether the following alarms exist in the alarm list:
      1. ALM-25500 KrbServer Service Unavailable
      2. ALM-25000 LdapServer Service Unavailable
      3. ALM-13000 ZooKeeper Service Unavailable
      4. ALM-14000 HDFS Service Unavailable
      5. ALM-18000 Yarn Service Unavailable
      6. ALM-16004 Hive Service Unavailable
      • If yes, go to 1.c.
      • If no, go to 2.
    3. Handle the alarm according to the alarm help.

      After the alarm is cleared, wait a few minutes and check whether the alarm HetuServer Service Unavailable is cleared.

      • If yes, no further action is required.
      • If no, go to 2.

  2. Collect fault information.

    1. On MRS Manager, choose System > Export Log.
    2. Contact the O&M personnel and send the collected logs.



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