In the past few days I have learned that scripts are expensive. I was using
scripts in term facets and that would give me horrible performance as
compared to using terms facet with forming a term similar to what the
script would produce and push it in ES at the time of indexing documents.
Although there are cases where I really don't think there is way for me to
avoid using scripts. I am not using scripts in facets but I do need them at
the time of updating documents. The rate at which I am updating documents
is pretty high as well.
By default ES comes with MVEL as the default scripting language. But there
question is which should I use for performance? As in which plugin has the
fastest script evaluation and execution engine (in context of ES)?
Looking forward to some valuable inputs on this one.
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