ALM-17011 Abnormal Connection Between Oozie and Yarn
Alarm Description
Oozie depends on Yarn. After a task is submitted, the system checks Yarn connectivity. This alarm is generated when the service fails the check for 5 consecutive times.
This alarm is cleared when the connection between Oozie and Yarn becomes normal.
Alarm Attributes
Alarm ID |
Alarm Severity |
Auto Cleared |
---|---|---|
17011 |
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
The Oozie service is abnormal and tasks cannot be submitted to Yarn.
Possible Causes
- The Yarn service is abnormal.
- The connection between Oozie and Yarn is abnormal.
Handling Procedure
Check the YARN service status.
- In the service list on FusionInsight Manager, check whether Running Status of Yarn is Normal.
- In the alarm list, check whether ALM-18000 YARN Service Unavailable is generated.
- Rectify the fault by performing the operations provided for ALM-18000 Yarn Service Unavailable.
- Wait for several minutes and check whether the alarm Abnormal Connection Between Oozie and Yarn is cleared.
- If yes, no further action is required.
- If no, go to 5.
Check the connectivity between Oozie and Yarn.
- Log in to FusionInsight Manager, choose O&M > Log > Online Search, select the Oozie service, and search for the keyword [Oozie Alarm Enhancement][Yarn] 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 Yarn is cleared.
- If yes, no further action is required.
- If no, go to 6.
Collect fault information.
- On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
- Select Oozie for Service and click OK.
- 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.
- Contact O&M personnel and provide the collected logs.
Alarm Clearance
This alarm is automatically cleared after the fault is rectified.
Related Information
None.
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