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elasticsearch-cassandra-river

Elasticsearch river for Cassandra 2.* version with CQL support, based on data pull method from Cassandra cluster. Project Cloned and modified from the origin https://github.com/eBay/cassandra-river.

  1. Based on Datastax Java driver
  2. CQL support
  3. Support Cron Scheduling

##Setup build : mvn clean install

install:

  • copy target/releases/cassandra-river-1.0.6-SNAPSHOT.zip into $ELASTICSEARCH_HOME/plugin/cassandra-river or
  • ./plugin --url file:/river/cassandra-river-1.0.6-SNAPSHOT.zip --install cassandra-river

remove: ./plugin --remove cassandra-river

##Init: curl -XPUT 'http://HOST:PORT/_river/cassandra-river/_meta' -d '{ "type" : "cassandra", "cassandra" : { "connection" : { "hosts" : "hostname", "data_centre" : "dc", "username" : "optional_username", "password" : "optional_password" }, "sync" : { "batch_size" : 20000, "schedule" : "0 0/15 * * * ?" }, "keyspaces" : [ { "name" : "keyspace_name", "column_families" : [ { "name" : "column_family_name", "primary_key" : "column_family_primary_key", "index" : { "name" : "keyspace_name_column_family_name_index", "type" : "keyspace_name_column_family_name" }, "columns" : [ { "name" : "user_id", "type" : "string" "raw": "true" } ] } ] } ] } }'

Notes on the above:

  • hosts can be a single ip address or dns name or comma separated list (with no spaces).
  • keyspaces is a list of dictionaries describing the keyspaces and their column familes.
  • column_families is a list of dictionaries describing the column family.
  • column_families -> index optional attribute to set the index name and type values to be used to create the index.
  • column_families -> columns optional attribute to describe column mapping characteristics.
  • column_families -> columns -> name name of the column
  • column_families -> columns -> type one of the core types: string, integer/long, float/double, boolean and null.
  • column_families -> columns -> raw optional flag that indecates that a raw field should be created as well, useful for sorting a column/attribute that is searchable as well.

##Search Install plugin head $ES_HOME\bin\plugin -install mobz/elasticsearch-head

Use Head plugin to search, you can download it from here http://HOST:PORT/_plugin/head/

##Improvments

  1. Add unit Tests
  2. Add newly added rows in ES by date

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