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Answered
Hey There Have The Following Issue After Upgrading Server And Trains To 0.16:

hey there

Have the following issue after upgrading server and trains to 0.16:
Error 100 : General data error (TransportError(503, 'search_phase_execution_exception', 'Trying to create too many buckets. Must be less than or equal to: [10000] but was [11633]. This limit can be set by changing the [search.max_buckets] cluster level setting.'))Error appears when checking scalar plots. Randomly appeared after training for a while (it was ok for e.g. first epoch).

This seems to be coming from ES: https://discuss.elastic.co/t/search-max-buckets-limit-error-on-7-0-1/179989

  
  
Posted 3 years ago
Votes Newest

Answers 34


The error is still there for new experiment

  
  
Posted 3 years ago

AppetizingMouse58 Ok , i see, thanks!

  
  
Posted 3 years ago

I have remake curl, this commad "sudo curl -L " https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compos" will work

  
  
Posted 3 years ago

The log is produced after i go to the web ui and reproduce the error of "Failed to get Plot Charts"

  
  
Posted 3 years ago

That's ok, i have just start the server. Could you tell me how to delete this index?

  
  
Posted 3 years ago

May be its due to my curl?

  
  
Posted 3 years ago

This is the second command

  
  
Posted 3 years ago

SubstantialBaldeagle49 Well, I see. Elaticsearch does not support putting that large number into max_buckets. From the error message that I see in the apiserver log I am not sure that the original problem is connected to the buckets number. Can you please revert the max_bucket change, reproduce the original problem and share the elasticsearch log?

  
  
Posted 3 years ago

AppetizingMouse58

  
  
Posted 3 years ago

Sure, you delete it with the following command:
curl -XDELETE " http://localhost:9200/events-plot-d1bd92a3b039400cbafc60a7a5b1e52b "
Once deleted it will be automatically recreated by the api server and should see the plots from the new tasks that you run afterwards

  
  
Posted 3 years ago

The index "events-plot-d1bd92a3b039400cbafc60a7a5b1e52b" is red meaning that it is corrupted and elastic cannot work with it. The most straightforward solution would be to delete this index but it will result in all the plots generated so far will be lost.

  
  
Posted 3 years ago

What can be seen in the logs is that for some reason Elasticsearch had internal failure when trying to perform the plots query. I will send you the instruction on how to check for the health of ES nodes. It may provide us with some clues

  
  
Posted 3 years ago

AppetizingMouse58 Thanks so much!, Could u tell why does this happen? If it happen next time , is there any other solution?

  
  
Posted 3 years ago

I am not sure about the reasons. What you can do is to backup your /opt/trains/data folder periodically (preferably stopping the docker compose before it). Another possibility is to configure your elasticsearch to run as a cluster with 2 or more nodes on the same or different machine. This will allow elastic to replicate your indices to other nodes.

  
  
Posted 3 years ago

Setting up an elastic cluster requires some devops. You can search for "setup elasticsearch 7 cluster" in the internet and there are some tutorials there. Stopping your docker-compose once in a certain period of time and backing up the /opt/trains/data folder is more straightforward and it would backup also the data that we store in mongodb.

  
  
Posted 3 years ago

AppetizingMouse58 Great, Thanks so much! You have done a great work.
Another question, how to configure elasticsearch to run as a cluster with 2 or more nodes on the same or different machine 😅

  
  
Posted 3 years ago

Can i backup my experiments?

  
  
Posted 3 years ago

AppetizingMouse58 Ok, this is the full log, here seems a error:

  
  
Posted 3 years ago

AppetizingMouse58 here:

  
  
Posted 3 years ago

Ok , i will start a new experiment to see if the error will be still there? Sorry i dont really get how to show the trains-apiserver log

  
  
Posted 3 years ago

SubstantialBaldeagle49 This should collect the logs: 'sudo docker logs trains-apiserver >& apiserver.logs'

  
  
Posted 3 years ago

SubstantialBaldeagle49 The log looks OK. Where do you see the error?

  
  
Posted 3 years ago

Ok, i have reverte the change ,here is two log:

  
  
Posted 3 years ago

AppetizingMouse58

  
  
Posted 3 years ago

image

  
  
Posted 3 years ago

image

  
  
Posted 3 years ago

image

  
  
Posted 3 years ago

image

  
  
Posted 3 years ago

Might be some other issue related to loading plots from elastic. Can you show the trains-apiserver log again after you received the error - there should be some more information there

  
  
Posted 3 years ago