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From Mike Thomsen <>
Subject Re: Help with loading a file into a cache
Date Fri, 30 Nov 2018 15:26:45 GMT

Can you post a redacted example with dummy data?



On Fri, Nov 30, 2018 at 7:08 AM DAVID SMITH
<> wrote:

> Hi Devs
> I am running a NiFi 1.8 cluster, each node has 128Gb of Ram. I need to
> load the contents of a file of which is around 5Gb in size  into a
> Key/Value cache.
> The file I want to load is produced by another company so the format it
> comes in is not negotiable. The file contains thousands of lines in the
> following format:-
> <index value1>:{<property1 name>: <property1 value>, <property2
> name>:<property2 value>}<index value2>:{<property1 name>: <property1
> value>, <property2 name>:<property2 value>}
> <index value3>:{<property1 name>: <property1 value>, <property2
> name>:<property2 value>}
> I want the index value to become the Key and everything  beyond the colon
> to become the value.
> What would be the most efficient way of reading the file, and parsing it
> to load into a cache, I thought of reading in the file, using a split
> content on CR/LF and then splitting on the first colon.I have noticed in
> 1.8 there are some CSV and JSON Readers (controller services), would these
> be a better way of doing this, but the problem I can see is that the file
> isn't quite a CSV and it isn't quite a JSON Array file.
> Many thanksDave

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