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> On 1 Jul 2023, at 06:59, Arunima Barik <arunimabari...@gmail.com> wrote: > > Are there any provisions wherein I can discuss about my project > implementation with someone from the Ignite team to clarify some doubts? > > Preferably through a small online meet? > > Regards > Arunima > > On Sat, 1 Jul, 2023, 12:03 am Jeremy McMillan, <jeremy.mcmil...@gridgain.com > <mailto:jeremy.mcmil...@gridgain.com>> wrote: >> Python doesn't at this time go anywhere near Ignite CacheStore. You would >> need to implement the CacheStore in Java or some other language which >> compiles to JVM runtime/jar. There's a talk from the most recent summit on >> using Groovy, if you want a higher level language than Java, but >> theoretically you could use Jython (if you are willing to experiment and can >> find a compatible JVM that runs both Ignite and Jython). >> >> Ignite can operate like a federated query proxy if different caches are >> implemented with different external persistence for each cache. CacheStore >> is the interface Ignite would use to send a cache miss to a backend >> database. In your original question you intended to use Parquet files as a >> backend database, but Ignite does not (yet) provide one for Parquet. If >> someone were to donate a supportable Java implementation, I suspect the >> community would adopt and support it. Since Parquet is columnar, I also >> suspect it would need to target Ignite 3 to adopt conventions around >> columnar data, and then might be backported to Ignite 2. >> >> >> On Fri, Jun 30, 2023 at 12:13 PM Arunima Barik <arunimabari...@gmail.com >> <mailto:arunimabari...@gmail.com>> wrote: >>> Which do you think would be a better option? >>> >>> Federated queries or CacheStore >>> >>> And is CacheStore supported in Python? >>> >>> On Fri, 30 Jun, 2023, 1:50 pm Stephen Darlington, >>> <stephen.darling...@gridgain.com <mailto:stephen.darling...@gridgain.com>> >>> wrote: >>>> You’d need to implement your own Cache Store. >>>> https://ignite.apache.org/docs/latest/persistence/custom-cache-store >>>> >>>>> On 30 Jun 2023, at 06:46, Arunima Barik <arunimabari...@gmail.com >>>>> <mailto:arunimabari...@gmail.com>> wrote: >>>>> >>>>> >>>>> ---------- Forwarded message --------- >>>>> From: Arunima Barik <arunimabari...@gmail.com >>>>> <mailto:arunimabari...@gmail.com>> >>>>> Date: Fri, 30 Jun, 2023, 10:52 am >>>>> Subject: Ignite for Parquet files >>>>> To: <user@ignite.apache.org <mailto:user@ignite.apache.org>> >>>>> >>>>> >>>>> Hello Team >>>>> >>>>> I have my data stored as parquet files. I want a caching layer on top of >>>>> this existing file system. I am going to use Ignite for that but I do not >>>>> need native persistence for that. >>>>> >>>>> I want that any changes to database should be reflected in both cache and >>>>> file. >>>>> And same for read queries. It should automatically read from disk if data >>>>> is not present in cache. >>>>> >>>>> I want to do all this is python. Please let me know how the same can be >>>>> done. >>>>> Resources if any as well. >>>>> >>>>> Thank you and looking forward to hearing from you. >>>>> >>>>> Regard, >>>>> Arunima Barik >>>>
