Help Center > > User Guide> FusionInsight Manager Operation Guide> Alarm Reference (Applicable to MRS 3.x)> ALM-16009 Map Number Exceeds the Threshold

ALM-16009 Map Number Exceeds the Threshold

Updated at: Mar 25, 2021 GMT+08:00

Description

The system checks the number of HQL maps in every 30 seconds. This alarm is generated if the number exceeds the threshold. By default, Trigger Count is set to 3, and the threshold is 5000.

Attribute

Alarm ID

Alarm Severity

Auto Clear

16009

Major

Yes

Parameters

Name

Meaning

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 triggering the alarm. If the current indicator value exceeds this threshold, the alarm is generated.

Impact on the System

If the number of HQL maps executed on Hive is excessively large, the HQL execution speed is slow, and a large number of resources are occupied.

Possible Causes

The HQL statements are not the optimal.

Procedure

Check the number of HQL maps.

  1. On FusionInsight Manager portal, choose Cluster >Name of the desired cluster > Services > Hive > Resource. Check the HQL statements with the excessively large number (5000 or more) of maps in HQL Map Count.
  1. Locate the corresponding HQL statements, optimize them and execute them again.
  2. Check whether the alarm is cleared.

    • If it is, no further action is required.
    • If it is not, go to 4.

Collect fault information.

  1. On the FusionInsight Manager, choose O&M > Log > Download.
  2. Select Hive in the required cluster from the Service.
  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 the O&M personnel and send the collected logs.

Alarm Clearing

After the fault is rectified, the system automatically clears this alarm.

Related Information

None

Did you find this page helpful?

Submit successfully!

Thank you for your feedback. Your feedback helps make our documentation better.

Failed to submit the feedback. Please try again later.

Which of the following issues have you encountered?







Please complete at least one feedback item.

Content most length 200 character

Content is empty.

OK Cancel