stream2es

Standalone utility to stream different inputs into Elasticsearch.

Install

You'll need Java 7. Run java -version to make sure.

Then download stream2es:

% curl -O download.elasticsearch.org/stream2es/stream2es; chmod +x stream2es

Usage

stdin

By default, stream2es reads JSON documents from stdin.

% echo '{"field":1}' | stream2es
create index http://localhost:9200/foo
stream stdin
flushing index queue
00:00.505 2.0d/s 0.1K/s 1 1 70
streamed 1 docs 1 bytes xfer 70
%

Wikipedia

Index the latest Wikipedia article dump.

% stream2es wiki --target http://localhost:9200/tmp
create index http://localhost:9200/tmp
stream wiki from http://download.wikimedia.org/enwiki/latest/enwiki-latest-pages-art
icles.xml.bz2
00:04.984 44.7d/s 622.7K/s 223 223 3177989 0 10
00:07.448 54.1d/s 838.1K/s 403 180 3213889 0 794
00:09.715 63.0d/s 961.4K/s 612 209 3172256 0 1081
00:12.000 73.2d/s 1036.1K/s 878 266 3167860 0 1404
00:14.385 75.2d/s 1079.9K/s 1082 204 3174907 0 1756
^Cstreamed 1158 docs 1082 bytes xfer 15906901 errors 0

What is the output telling me?

00:12.000: MM:SS that the app has been running
  73.2d/s: Docs per second indexed
1036.1K/s: Bytes per second indexed (bulk transferred over the wire)
      878: Total docs indexed so far
      266: Docs in bulk
  3167860: Total JSON bytes of docs in the bulk
        0: Total docs that have had indexing errors so far
     1404: The _id of the first doc in the bulk

If you're at a café or want to use a local copy of the dump, supply --source:

% ./stream2es wiki --max-docs 5 --source /d/data/enwiki-20121201-pages-articles.xml.bz2

Elasticsearch

If you use the es stream, you can copy indices from one Elasticsearch to another. Example:

% stream2es es \
     --source http://foo.local:9200/wiki \
     --target http://bar.local:9200/wiki2

This is a convenient way to reindex data if you need to change the number of shards or update your mapping.

Twitter

In order to stream Twitter, you have to create an app and authorize it.

Create app

Visit (https://dev.twitter.com/apps/new) and create an app. Call it stream2es. Note the Consumer key and Consumer secret.

Authorize app

Now run stream2es twitter --authorize --key CONSUMER_KEY --secret CONSUMER_SECRET and complete the dialog.

Run with new creds

You should now be able to stream twitter with simply stream2es twitter. stream2es will grab the most recent cached credentials from ~/.authinfo.stream2es.

Options

% stream2es --help
Copyright 2013 Elasticsearch

Usage: stream2es [CMD] [OPTS]

..........

You can change index settings by supplying --settings:

% echo '{"name":"alfredo"}' | ./stream2es stdin --settings '
{
    "settings": {
        "refresh_interval": "2m"
    }
}'

Contributing

stream2es is written in Clojure. You'll need leiningen 2.0+ to build.

% lein bin
% target/stream2es

License

This software is licensed under the Apache 2 license, quoted below.

Copyright 2009-2013 Elasticsearch <http://www.elasticsearch.org>

Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.