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Elasticsearch

Version: 1.6.0

Requirements

  1. JDK: 6.0 (or above) but JDK 8 (at least u20 or higher) or JDK 7 (u55) is best recommended
  2. Hardware: at least 8Gb memory, cpu does not matter much
  3. Set number of open file to 64000
  4. Heap size to be less than half of memory but not more than 64 Gb
  5. Disable memory swap (can use es settings)

Init steps

  1. Download & unpack (debian): https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.6.0.deb
  2. Replace config/elasticsearch.yml by elasticsearch.yml and config/logging.yml by logging.yml from this repo.
  3. Install plugins with shell script es-plugins.sh under elasticsearch root directory.
  4. Run ./elasticsearch (with optional heapsize settings: -Xmx2G -Xms2G)
  5. Go to http://:9200/_plugin/HQ to see cluster status

Backup

  1. Register a repository with a PUT to /_snapshot/<REPO_NAME> with body as in repo_s3_register.json
  2. Make a POST to /_snapshot/<REPO_NAME>/<SNAPSHOT_NAME> with optional body as in backup_settings.json. Add ?wait_for_completion=true if you want to wait & see backup summary

Restore

  1. If on another machine/cluster register a repository with a PUT to /_snapshot/<REPO_NAME> with body as in repo_s3_register.json
  2. View available snapshots by GET to /_snapshot/<REPO_NAME>/_all
  3. Make a POST to /_snapshot/<REPO_NAME>/<SNAPSHOT_NAME>/_restore with optional body as in restore_settings.json. Add ?wait_for_completion=true if you want to wait & see restore summary
  4. Note that searching will not be available on under-recovery shards.
  1. Basic queries can be done via GET to /<INDEX_NAME>/<DOC_TYPE>/_search?q=<FIELD_NAME>:<SEARCH_KEYWORD>
  2. Complex queries must be done by POST to /<INDEX_NAME>/<DOC_TYPE>/_search with a body carrying specifications
v0.3.3[beta]