ALM-16047 HiveServer Has Been Deregistered from ZooKeeper¶
Description¶
The system checks the Hive service every 60 seconds. This alarm is generated when Hive registration information on ZooKeeper is lost or Hive cannot connect to ZooKeeper.
Attribute¶
Alarm ID | Alarm Severity | Auto Clear |
|---|---|---|
16047 | 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. |
Impact on the System¶
If the Hive configuration cannot be read from ZooKeeper, HiveServer will be unavailable.
Possible Causes¶
The network is disconnected.
The ZooKeeper instance is abnormal.
Procedure¶
Restart related instances.
Log in to FusionInsight Manager. Choose O&M > Alarm > Alarms, click the drop-down list in the row that contains the alarm, and view role and the IP address of the node for which the alarm is generated in Location.
Choose Cluster > Name of the desired cluster > Services > Hive > Instance, select the instance at the IP address for which the alarm is generated, and choose More > Restart Instance.
Wait for 5 minutes and check whether the alarm is cleared.
If yes, no further action is required.
If no, go to 4.
Collect the fault information.
On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
Expand the Service drop-down list, and select Hive for the target cluster.
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 Clearing¶
This alarm is automatically cleared after the fault is rectified.