Available MZooKeeper Client Connections Are Insufficient

Description

The system periodically detects the number of active processes between the MZooKeeper client and the MZooKeeper server every 60 seconds. This alarm is generated when the number of connections exceeds the threshold.

Possible Causes

• A large number of client processes are connected to MZooKeeper.

• The thresholds are not appropriate.

Solution

1. Log in to FusionInsight Manager.

2. On FusionInsight Manager, choose O&M > Alarm > Alarm. On the displayed interface, click the drop-down button of ALM-43907 Available MZooKeeper Client Connections Are Insufficient. Check the IP address of the client for which the alarm is generated in Location Information.

3. Open the MZooKeeper service interface, click Resources to enter the Resource page, and check whether the number of connections of the client with the IP address specified by Number of Connections (By Client IP Address) is large.

   • If it is, go to 4.

   • If it is not, go to 5.

4. Check whether connection leakage occurs on the client process.

5. Clickhttp://10.88.69.41:7088/idp-edit-service/editor/image/25541599350/A-1_1_en-us_image_0168911584.gif in the Number of Connections (by IP) to enter the Threshold Settings page, and click Modify under Operations. Increasethe threshold by referring to the value of maxClientCnxns by choosing Configuration > All Configuration > Mquorumpeer.

6. Check whether the alarm is cleared.

   • If it is, no further action is required.

   • If it is not, go to 7.