Elasticsearch Rest-high-level

Elasticsearch Rest-high-level

Opster Team

Nov 2020


In addition to reading this guide, run the Elasticsearch Health Check-Up. Detect problems and improve performance by analyzing your shard sizes, threadpools, memory, snapshots, disk watermarks and many more.
Free tool that requires no installation with +1000 users.

Run the Elasticsearch check-up to receive recommendations like this:

checklist Run Check-Up
error

The following configuration error was detected on node 123...

error-img

Description

This error can have a severe impact on your system. It's important to understand that it was caused by...

error-img

Recommendation

In order to resolve this issue and prevent it from occurring again, we recommend that you begin by changing the configuration to...

1

X-PUT curl -H "Content-Type: application/json" [customized recommendation]

Rest-high-level in Elasticsearch

Rest-high-level is built on top of low-level rest-client and is a method of communicating with Elasticsearch based on HTTP REST endpoints. This concept is majorly popular in the context of a Java-based Elasticsearch client. From day one, Elasticsearch supports transport clients for Java to communicate with Elasticsearch. In version 5.0, a low-level rest-client was released with lots of advantages over the existing transport client such as version independencies, increased stability, and lightweight JAR file libraries.

What it is used for:

It is used for communicating with Elasticsearch HTTP REST endpoints in which marshalling and unmarshalling of response objects are handled by the Elasticsearch server itself.

Run the Elasticsearch check-up to receive recommendations like this:

checklist Run Check-Up
error

The following configuration error was detected on node 123...

error-img

Description

This error can have a severe impact on your system. It's important to understand that it was caused by...

error-img

Recommendation

In order to resolve this issue and prevent it from occurring again, we recommend that you begin by changing the configuration to...

1

X-PUT curl -H "Content-Type: application/json" [customized recommendation]


Related log errors to this ES concept


Logger.errortext
Logger.infotext
Logger.warntext
MaxContentLength set to high value; resetting it to 100mb
Unable to apply field level security
High disk watermark exceeded on ; shards will be relocated away from this node
Role uses document and/or field level security; which is not enabled by the current license
high disk watermark exceeded on one or more nodes; rerouting shards
Exception during cleanup of root level blobs
Found stale root level blobs . Cleaning them up
High disk watermark no longer exceeded on . but low disk watermark is still exceeded
Elasticsearch high disk watermark [90%] exceeded on



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