Elasticsearch Script File in Local Mode

Question

Using ElasticSearch, one can place scripts of various languages in ElasticSearch's /config/scripts directory, and they will be automatically loaded for use in Update requests and other types of operations. In my production environment, I was able to accomplish this and run a successful Update using the script.

So far, however, I've been unsuccessful in getting this feature to work when running a node in local mode for integration tests. I assumed that, since one can configure the ElasticSearch node, with an elasticsearch.yml on the classpath, one should also be able to add a scripts directory and place her desired script there, causing it to be loaded into the local node. That doesn't seem to be the case since when I try to execute an Update utilizing that script it cannot be found.

Caused by: org.elasticsearch.ElasticsearchIllegalArgumentException: Unable to find on disk script scripts.my_script 
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:269)
    at org.elasticsearch.script.ScriptService.executable(ScriptService.java:417)
    at org.elasticsearch.action.update.UpdateHelper.prepare(UpdateHelper.java:194)
    ... 6 more

Does anyone know the proper way to do automatic script loading into a local ElasticSearch node for testing?

I am using the basic ElasticSearch client included in "org.elasticsearch:elasticsearch:1.5.2".

MawrCoffeePls · Accepted Answer · 2015-07-25 01:39:29Z

1

After perusing the source code, I discovered that the reason my script was not being picked up by Elasticsearch's directory watcher was because it was watching user.dir, the default configuration directory. The scripts/ subdirectory would have had to have been under there for the node to pick up my script and load it into the ScriptService for it to be used during updates.

The configuration directory can be overridden in your elasticsearch.yml with the key path.conf. Setting that to somewhere in your project would allow you to load scripts during testing and add those scripts to version control as well. Make sure that under that directory is a scripts/ directory; that is where your scripts will be loaded from.

answered Jul 25, 2015 at 1:39

MawrCoffeePls

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