Elasticsearch

Determine which Java (JVM) version is running on your Elasticsearch cluster nodes.

Delete Metricbeat datastream.

Instruct Elasticsearch to listen on specific interface.

Reset initial elastic user password.

Increase the limit of the mmap counts when using Docker desktop on Microsoft Windows.

Define Elasticsearch Snapshots Lifecycle Management to automate backups.

Perform multiple indexing operations using single API call to Elasticsearch cluster.

Delete Elasticsearch indices using wildcard expression.

Create, list and restore Elasticsearch snapshots.

Remove Elasticsearch node.

Restart Elasticsearch node.

Disable Elasticsearch GeoIpDownloader.

Install Elasticsearch 8.x on Ubuntu operating system.

Backup Elasticsearch index using elasticsearch-dump.

Increase the limit of the mmap counts for Elasticsearch service.

Automatically rollover Elasticsearch index by time.

Create an Elasticsearch cluster using docker to learn how it behaves during specific operations.

Calculate Elasticsearch’s average documents number in recent days using a shell script.

Retry Elasticsearch shard allocation that was blocked due to too many subsequent allocation failures.

Calculate Elasticsearch hit ratio using command-line curl utility.

Delete old Elasticsearch indices using Elasticsearch Curator utility.

Display default Elasticsearch settings.

Use templates to define default Elasticsearch index settings.

Display active Elasticsearch searches and calculate average value.

Specify systemd startup timeout option to prevent service start operation from timing out.

Perform basic Elasticsearch 7.x operations.

Install Elasticsearch 7.x on Debian Buster.