Briefly, this error occurs when Elasticsearch is unable to update the lifecycle metadata due to a change in the Index Lifecycle Management (ILM) or Snapshot Lifecycle Management (SLM) mode. This could be due to incorrect settings or insufficient permissions. To resolve this issue, you can try the following: 1) Check and correct the ILM and SLM settings; 2) Ensure the user has the necessary permissions to update the lifecycle metadata; 3) Restart Elasticsearch to apply the changes; 4) If the error persists, consider disabling the ILM or SLM temporarily to isolate the issue.
This guide will help you check for common problems that cause the log ” unable to update lifecycle metadata with new ilm mode [” + ilmMode + “]; slm mode [” + slmMode + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, plugin.
Overview
Metadata in Elasticsearch refers to additional information stored for each document. This is achieved using the specific metadata fields available in Elasticsearch. The default behavior of some of these metadata fields can be customized during mapping creation.
Examples
Using _meta meta-field for storing application-specific information with the mapping:
PUT /my_index?pretty
{
"mappings": {
"_meta": {
"domain": "security",
"release_information": {
"date": "18-01-2020",
"version": "7.5"
}
}
}
}Notes
- In version 2.x, Elasticsearch had a total 13 meta fields available, which are: _index, _uid, _type, _id, _source, _size, _all, _field_names, _timestamp, _ttl, _parent, _routing, _meta
- In version 5.x, _timestamp and _ttl meta fields were removed.
- In version 6.x, the _parent meta field was removed.
- In version 7.x, _uid and _all meta fields were removed.
Log Context
Log “unable to update lifecycle metadata with new ilm mode [” + ilmMode + “]; slm mode [” + slmMode + “]” classname is OperationModeUpdateTask.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
.build();
}
@Override
public void onFailure(Exception e) {
logger.error("unable to update lifecycle metadata with new ilm mode [" + ilmMode + "]; slm mode [" + slmMode + "]"; e);
}
@Override
public void clusterStateProcessed(ClusterState oldState; ClusterState newState) {
if (ilmMode != null) {
[ratemypost]
