Fast write datastore...

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Fast write datastore...

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Hello there,

I have one or more parquet files to read and perform some aggregate queries using Spark Dataframe. I would like to find a reasonable fast datastore that allows me to write the results for subsequent (simpler queries).
I did attempt to use ElasticSearch to write the query results using ElasticSearch Hadoop connector. But I am running into connector write issues if the number of Spark executors are too many for ElasticSearch to handle. But in the schema sense, this seems a great fit as ElasticSearch has smartz in place to discover the schema. Also in the query sense, I can perform simple filters and sort using ElasticSearch and for more complex aggregate, Spark Dataframe can come back to the rescue :).
Please advice on other possible data-stores I could use?