About jkoral

jkoral · ‎02-26-2026

Thank you for the reply. I am assuming it is the same. Should I just delete the UUID from the file and let Cloudera Manager re-create it? Or would it be easiest to just uninstall cloudera-scm-agent and run the wizard to have it re-added in CM?

jkoral · ‎02-25-2026

I have an old cluster that had some hard drives fail. On one server (node06), the OS drive failed and instead of building it from scratch, I created an image from another node (node02) in the cluster. I then started the new server (node06) and changed the name and the IP address to match node06. But when I put it back on the network, Cloudera kind of went crazy because it thought that node was node02 and duplicated it. Is there something I need to do on the imaged node (node06) so it doesn't think it is node02? I hope this makes sense.

jkoral · ‎07-24-2025

Still getting the same error.

jkoral · ‎07-23-2025

I just found this information on my validations in assets. I have made these changes and will report back tomorrow if it helps. The Checkpoint transaction-limit set to 1000000. Cloudera recommends a limit of 4,000,000. The checkpoint period is set to 3600 seconds. Cloudera recommends at least 7200 seconds (2 hours) in production clusters. Please see the following documentation for complete details: https://docs.cloudera.com/cdp-private-cloud-base/7.1.6/data-protection/topics/hdfs-configuration-properties.html.

jkoral · ‎07-23-2025

I am going to create a support ticket for this as well. I was hoping this was going to be an easy one.

jkoral · ‎07-22-2025

Here are the logs from one of the datanode servers. Thank you very much.

jkoral · ‎07-21-2025

The weird thing is, when I restart HDFS, it seems fine for about a day and then I get those alerts again. One thing I just did though, was I did the ssh-copy-id from the secondary name node to all the data nodes. Not sure if that will help or not though.

jkoral · ‎07-21-2025

Yes, they are having no problems communicating with each other. They all have two IPs and all of the internal communication is going over a private 192.168.x.x network. I can ping back and forth with no problem. I also turned the firewall off and that doesn't seem to be an issue either.

jkoral · ‎07-18-2025

Thank you. I have attached both logs.

jkoral · ‎07-17-2025

Sorry, I meant which logs do you want from both of those servers? Are there specific logs that you want? HDFS, agent, alert publisher, event server, firehose, etc?

Online	Offline
Last Visited	‎02-26-2026 09:30 AM

Member Since	‎07-01-2025 03:29 PM
Last Visited	‎02-26-2026 09:30 AM
Posts	20
Kudos received	2

Cloudera Community

Re: Cannot get to Cloudera Manager after server re...

Re: Image from another server

Image from another server

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors

Re: HDFS Checkpoint Status Errors