Briefly, this error occurs when you’re trying to use a feature or plugin that is not supported by the current version of Elasticsearch you’re running. This could be due to a version mismatch between your Elasticsearch and the feature or plugin. To resolve this issue, you can either upgrade or downgrade your Elasticsearch to a version that supports the feature or plugin. Alternatively, you can look for a version of the feature or plugin that is compatible with your current Elasticsearch version.
This guide will help you check for common problems that cause the log ” version [{}] < [{}] and NOT supported for [{}] " to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, version.
Overview
A version corresponds to the Elasticsearch built-in tracking system that tracks the changes in each document’s update. When a document is indexed for the first time, it is assigned a version 1 using _version key. When the same document gets a subsequent update, the _version is incremented by 1 with every index, update or delete API call.
What it is used for
A version is used to handle the concurrency issues in Elasticsearch which come into play during simultaneous accessing of an index by multiple users. Elasticsearch handles this issue with an optimistic locking concept using the _version parameter to avoid letting multiple users edit the same document at the same time and protects users from generating incorrect data.
Notes
You cannot see the history of the document using _version. That means Elasticsearch does not use _version to keep a track of original changes that had been performed on the document. For example, if a document has been updated 10 times, it’s _version would be marked by Elasticsearch as 11, but you cannot go back and see what version 5 of the document looked like. This has to be implemented independently.
Common problems
If optimistic locking is not implemented while making updates to a document, Elasticsearch may return a conflict error with the 409 status code, which means that multiple users are trying to update the same version of the document at the same time.
POST /ratings/123?version=50
{
"name": "Joker",
"rating": 50
}Log Context
Log “version [{}] We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (version.onOrAfter(minimumVersion)) {
logger.debug("version [{}] >= [{}] and supported for [{}]"; version; minimumVersion; resourceOwnerName);
return ResourcePublishResult.ready();
} else {
logger.error("version [{}]
