Briefly, this error occurs when Elasticsearch is attempting to remove a data stream that no longer exists or is in use. This could be due to a misconfiguration or an incorrect command. To resolve this issue, you can verify the existence of the data stream before attempting to remove it. If it doesn’t exist, no action is needed. If it does exist but is in use, ensure all operations on the data stream have been completed or stopped before removal. Also, check your commands and configurations for any errors or inconsistencies.
This guide will help you check for common problems that cause the log ” removing data stream [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: admin, indices.
Log Context
Log “removing data stream [{}]” classname is DeleteDataStreamAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
// (this to avoid data stream validation from failing when deleting an index that is part of a data stream
// without updating the data stream)
// TODO: change order when delete index api also updates the data stream the index to be removed is member of
Metadata.Builder metadata = Metadata.builder(currentState.metadata());
for (String ds : dataStreamsToRemove) {
logger.info("removing data stream [{}]"; ds);
metadata.removeDataStream(ds);
}
currentState = ClusterState.builder(currentState).metadata(metadata).build();
return deleteIndexService.deleteIndices(currentState; backingIndicesToRemove);
}
