elasticsearch/client/benchmark

Steps to execute the benchmark

1. Build client-benchmark-noop-api-plugin with gradle :client:client-benchmark-noop-api-plugin:assemble
2. Install it on the target host with bin/elasticsearch-plugin install file:///full/path/to/client-benchmark-noop-api-plugin.zip
3. Start Elasticsearch on the target host (ideally not on the same machine)
4. Build an uberjar with gradle :client:benchmark:shadowJar and execute it.

Repeat all steps above for the other benchmark candidate.

Example benchmark

In general, you should define a few GC-related settings -Xms8192M -Xmx8192M -XX:+UseConcMarkSweepGC -verbose:gc -XX:+PrintGCDetails and keep an eye on GC activity. You can also define -XX:+PrintCompilation to see JIT activity.

Bulk indexing

Download benchmark data from http://benchmarks.elastic.co/corpora/geonames/documents.json.bz2 and decompress them.

Example command line parameters:

rest bulk 192.168.2.2 ./documents.json geonames type 8647880 5000

The parameters are in order:

• Client type: Use either "rest" or "transport"
• Benchmark type: Use either "bulk" or "search"
• Benchmark target host IP (the host where Elasticsearch is running)
• full path to the file that should be bulk indexed
• name of the index
• name of the (sole) type in the index
• number of documents in the file
• bulk size

Bulk indexing

Example command line parameters:

rest search 192.168.2.2 geonames "{ \"query\": { \"match_phrase\": { \"name\": \"Sankt Georgen\" } } }\"" 500,1000,1100,1200

The parameters are in order:

• Client type: Use either "rest" or "transport"
• Benchmark type: Use either "bulk" or "search"
• Benchmark target host IP (the host where Elasticsearch is running)
• name of the index
• a search request body (remember to escape double quotes). The TransportClientBenchmark uses QueryBuilders.wrapperQuery() internally which automatically adds a root key query, so it must not be present in the command line parameter.
• A comma-separated list of target throughput rates