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在 k8s 集群中部署 ES
在 k8s 集群中部署 ES
通过 helm 部署
WARNING
Elasticsearch requires some changes in the kernel of the host machine towork as expected. If those values are not set in the underlying operatingsystem, the ES containers fail to boot with ERROR messages.
More information about these requirements can be found in the links below:
https://www.elastic.co/guide/en/elasticsearch/reference/current/file-descriptors.html https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html
This chart uses a privileged initContainer to change those settings in the Kernelby running: sysctl -w vm.max_map_count=262144 && sysctl -w fs.file-max=65536$ sysctl -w vm.max_map_count=262144 && sysctl -w fs.file-max=65536查看状态
$ kubectl get podses-elasticsearch-coordinating-only-54d9f9698f-5mhdx 1/1 Running 0 7h26mes-elasticsearch-coordinating-only-54d9f9698f-xgnsb 1/1 Running 0 7h26mes-elasticsearch-data-0 1/1 Running 79 7h26mes-elasticsearch-master-0 1/1 Running 79 7h26m部署成功
$ curl es-elasticsearch-coordinating-only:9200{ "name" : "es-elasticsearch-coordinating-only-54d9f9698f-5mhdx", "cluster_name" : "elastic", "cluster_uuid" : "_na_", "version" : { "number" : "7.7.1", "build_flavor" : "oss", "build_type" : "tar", "build_hash" : "ad56dce891c901a492bb1ee393f12dfff473a423", "build_date" : "2020-05-28T16:30:01.040088Z", "build_snapshot" : false, "lucene_version" : "8.5.1", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search"}