Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-17008 Abnormal Connection Between Oozie and ZooKeeper
Updated on 2024-09-23 GMT+08:00
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ALM-17008 Abnormal Connection Between Oozie and ZooKeeper

Alarm Description

In HA mode, Oozie depends on ZooKeeper. This alarm is generated when the connection between Oozie and ZooKeeper is abnormal for three consecutive times.

This alarm is cleared when the connection between Oozie and ZooKeeper becomes normal.

Alarm Attributes

Alarm ID

Alarm Severity

Auto Cleared

17008

Minor

Yes

Alarm Parameters

Parameter

Description

Source

Specifies the cluster for which the alarm is generated.

ServiceName

Specifies the service for which the alarm is generated.

RoleName

Specifies the role for which the alarm is generated.

HostName

Specifies the host for which the alarm is generated.

Trigger Condition

Specifies the threshold for triggering the alarm.

Impact on the System

Running scheduling tasks are blocked and new scheduling tasks cannot be submitted. In HA mode, the Oozie service will restart if this alarm is reported.

Possible Causes

  • The ZooKeeper service is abnormal.
  • Oozie fails to connect to ZooKeeper.

Handling Procedure

Check the ZooKeeper service status.

  1. In the service list on FusionInsight Manager, check whether Running Status of ZooKeeper is Normal.

    • If yes, go to 5.
    • If no, go to 2.

  2. In the alarm list, check whether ALM-13000 ZooKeeper Service Unavailable is reported.

    • If yes, go to 3.
    • If no, go to 5.

  3. Rectify the fault by performing the operations provided for ALM-13000 ZooKeeper Service Unavailable.
  4. Wait for several minutes and check whether the alarm Abnormal Connection Between Oozie and ZooKeeper is cleared.

    • If yes, no further action is required.
    • If no, go to 5.

Check the connectivity between Oozie and ZooKeeper.

  1. Log in to FusionInsight Manager, choose O&M > Log > Online Search, select the Oozie service, and search for the keyword [Oozie Alarm Enhancement][ZooKeeper] in the log. View the cause in the log, and rectify the fault. In the alarm list, check whether the alarm Abnormal Connection Between Oozie and ZooKeeper is cleared.

    • If yes, no further action is required.
    • If no, go to 6.

Collect fault information.

  1. On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
  2. Select Oozie for Service and click OK.
  3. Click in the upper right corner, and set Start Date and End Date for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click Download.
  4. Contact O&M personnel and provide the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None.