NotOk Databus cluster is not running, no nodes are connected: Kafka Nodes (displayed in Device status)

Technical Articles ID: KB92496
Last Modified: 2022-08-24 08:47:30 Etc/GMT

Environment

SIEM Advanced Correlation Engine (ACE) 11.3.x
SIEM Application Data Monitor (ADM) 11.3.x
SIEM Database Event Monitor (DEM) 11.3.x
SIEM Data Streaming Bus (DSB) 11.3.x
SIEM Event Receiver (Receiver) 11.3.x

Problem

The device status in the Device properties page displays as NotOK; you can see the error below:

NotOk Databus cluster is not running, no nodes are connected: Kafka Nodes

When you run the command NitroStarted from the command line, you see the same error message as the output. From the ESM, when you telnet to the appliance or virtual machine using port 9092, you see the message below:

Connection refused on port 9092

System Change

This issue occurs when an upgrade has been performed from 10.x to 11.3.x. You might also see it after you perform an upgrade from 11.1.x to 11.3.x.

Cause

The databus hasn't started following the upgrade.

Solution

To resolve this issue, do the following:

Open the ESM System Properties.
Click the Clustering tab and write out the cluster settings:
- If the write out reports as OK and the issue persists, this issue affects you. Engineering is working to provide a fix in a forthcoming update or release.
- If the write out returns Not OK and an error code, search our Knowledge Base for the error code that you receive for more information about how to resolve your issue.

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NOTE: Any future product functionality or releases mentioned in the Knowledge Base are intended to outline our general product direction and should not be relied on, either as a commitment, or when making a purchasing decision.

Workaround

Technical Support can perform a workaround through a remote session to address this issue. To request this workaround, open a Service Request and provide this article number in the "Problem Description" field.

To create a Service Request, log on to the ServicePortal:

If you are a registered user, type your User ID and Password, and then click Log In.
If you are not a registered user, click Register and complete the fields. Your password and instructions are emailed to you.

Affected Products

Languages:

This article is available in the following languages:

Knowledge Center

NotOk Databus cluster is not running, no nodes are connected: Kafka Nodes (displayed in Device status)

Environment

Problem

System Change

Cause

Solution

Workaround

Affected Products

Languages:

Title

Title

Knowledge Center

NotOk Databus cluster is not running, no nodes are connected: Kafka Nodes (displayed in Device status)

Environment

Problem

System Change

Cause

Solution

Workaround

Affected Products

Languages:

Choose your region

Title

Title