ALM-50220 Error Rate of TCP Packet Receiving Exceeds the Threshold

Alarm Description

The system checks the rate of TCP packet receiving errors every 30 seconds. This alarm is generated when the error rate exceeds the threshold (5% by default).

This alarm is cleared when the error rate is less than the threshold.

Alarm Attributes

Alarm ID	Alarm Severity	Auto Cleared
50220	Critical	Yes

Alarm Parameters

Parameter	Description
Source	Specifies the cluster or system 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 task fails or data is lost.

Possible Causes

The network is faulty, so data cannot be sent.

Handling Procedure

Log in to the host where the faulty node is deployed as user root and run ping IP addresses of all Doris nodes to check whether the peer host can be pinged.
- If yes, go to 4.
- If no, go to 2.
Contact the network administrator to restore the network.
Wait for a while and check whether the alarm is cleared in the alarm list.
- If yes, no further action is required.
- If no, go to 4.

Collect 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 Doris for the target cluster.
Click the edit icon in the upper right corner, and set Start Date and End Date for log collection to 1 hour ahead of and after the alarm generation time, respectively. Then, click Download.
Contact O&M personnel and provide the collected logs.