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Example covering ideal shard size + how to adjust # of primary, replicate shards for an index - ev2900/OpenSearch_Index_Shard_Size
This page shows how to configure process namespace sharing for a pod. When process namespace sharing is enabled, processes in a container are visible to all other containers in the same pod.
You can use this feature to configure cooperating containers, such as a log handler sidecar container, or to troubleshoot container images that don't include debugging utilities like a shell.
Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster.
Elasticsearch currently provides 3 different techniques for fetching many results: Pagination, Search-After and Scroll. To learn how to...
Quickly collect data from thousands of exposed Elasticsearch or Kibana instances and generate a report to be analysed. - GitHub - 9oelM/elasticpwn: Quickly collect data from thousands of exposed Elasticsearch or Kibana instances and generate a report to be analysed.
Elasticvue is a free and open-source elasticsearch gui for the browser.
Your cluster is RED - you have unassigned shards and your cluster is not fully operational. Introducing a new Elasticsearch API which will save the day.
What Log4j version are you using, what mitigations are already in place, and what should you do next. Continuously updated to cover CVE-2021-44228, CVE-2021-45046, CVE-2021-45105, and CVE-2021-44832.
Personal notes used to pass the Elastic Certified Engineer certification
Pretty Results
When appending ?pretty=true to any request made, the JSON returned will be pretty formatted (use it for debugging only!). Another option is to set ?format=yaml which will cause the result to be returned in the (sometimes) more readable yaml format.
Human readable output
Statistics are returned in a format suitable for humans (e.g. "exists_time": "1h" or "size": "1kb") and for computers (e.g. "exists_time_in_millis": 3600000 or "size_in_bytes": 1024). The human readable values can be turned off by adding ?human=false to the query string. This makes sense when the stats results are being consumed by a monitoring tool, rather than intended for human consumption. The default for the human flag is false.
A large number of shards on an Elasticsearch cluster requires extra resources. Learn key ways to avoid and correct oversharding in this helpful guide.
We reviewed our usage of Elastic stack to make sure that we were using it to the best of its ability and discovered some interesting things.