Briefly, this error occurs when Elasticsearch’s Index Lifecycle Management (ILM) history bulk processor fails to shut down within the specified timeout period of 10 seconds. This could be due to a heavy load or a slow network. To resolve this issue, you can try increasing the timeout period, reducing the load on the Elasticsearch cluster, or optimizing your network performance. Additionally, ensure that your Elasticsearch cluster has sufficient resources (CPU, memory, disk space) to handle the workload.
This guide will help you check for common problems that cause the log ” failed to shut down ILM history bulk processor after 10 seconds ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, bulk.
Overview
In Elasticsearch, when using the Bulk API it is possible to perform many write operations in a single API call, which increases the indexing speed. Using the Bulk API is more efficient than sending multiple separate requests. This can be done for the following four actions:
- Index
- Update
- Create
- Delete
Examples
The bulk request below will index a document, delete another document, and update an existing document.
POST _bulk
{ "index" : { "_index" : "myindex", "_id" : "1" } }
{ "field1" : "value" }
{ "delete" : { "_index" : "myindex", "_id" : "2" } }
{ "update" : {"_id" : "1", "_index" : "myindex"} }
{ "doc" : {"field2" : "value5"} }Notes
- Bulk API is useful when you need to index data streams that can be queued up and indexed in batches of hundreds or thousands, such as logs.
- There is no correct number of actions or limits to perform on a single bulk call, but you will need to figure out the optimum number by experimentation, given the cluster size, number of nodes, hardware specs etc.
Log Context
Log “failed to shut down ILM history bulk processor after 10 seconds” classname is ILMHistoryStore.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
@Override
public void close() {
try {
processor.awaitClose(10; TimeUnit.SECONDS);
} catch (InterruptedException e) {
logger.warn("failed to shut down ILM history bulk processor after 10 seconds"; e);
Thread.currentThread().interrupt();
}
}
public void setIlmHistoryEnabled(boolean ilmHistoryEnabled) {
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