Enabling Trace Logging for a shard/index

Elastic Stack Elasticsearch
1

Hi Team,

Is there a way to enable trace logging for a particular shard or particular index in elasticsearch.

I tried doing this but it didn't work

PUT _cluster/settings
{
  "transient": {
    "logger.org.elasticsearch.index.engine.Engine.index_name.3": "TRACE"
  }
}

3 is shardId in above.

2

Can someone please confirm if this is possible?

3

As far as I know that is not possible. What is the problem you are trying to solve?

4

I have one shard failing during commit with NoSuchFileException frequently and then it comes back green again. I want to enable trace logging for that shard to understand what is the issue exactly.

Enabling TRACE logging for class Engine isn't recommended afaik

5

It would probably help if you provided some additional details.

  • Which version of Elasticsearch are you using?
  • What is the size and specification of your cluster?
  • What type of storage are you using?

It would probably also help if you shared the full error message, possibly with some lines around it for context.