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From Saurabh Sharma <>
Subject questions regrading stored fields role in query time
Date Tue, 26 Feb 2019 08:34:12 GMT
Hi All ,

I am new here on this channel.
Few days back we upgraded our solr cloud to version 7.3 and doing real-time
document posting with 15 seconds soft commit and 2 minutes hard commit
time.As of now we posting full document to solr which includes data
accumulations from various sources.

Now we want to do partial updates.I went through the documentation and
found that all the fields should be stored or docValues for partial
updates. I have few questions regarding this?

1) In case i am just fetching only 1 field while making query.What will the
performance impact due to all fields being stored? Lets say i have an "id"
field and i do have doc value true for the field, will solr use stored
fields in this case? will it load whole document in RAM ?

2)What's the impact of large stored fields (.fdt) on query time
performance. Do query time even depend on the stored field or they just
depend on indexes?

Thanks and regards

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