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From prasenjit mukherjee <prasen....@gmail.com>
Subject SolrReplication configuration with frequent deletes and updates
Date Wed, 01 Feb 2012 17:12:13 GMT
I have the following requirements :

1. Adds : 20 docs/sec
2. Searches : 100 searches/sec
3. Deletes : (20*3600*24*7 ~ 12 mill ) docs/week ( basically a cron
job which deletes all documents more than 7 days old )

I am thinking of having 6 shards ( with each having 2 million docs )
with 1 master and 2 slaves with SolrReplication. Have following
questions :

1. With  50 searches/sec per shard with 2 million doc, what would be
the tentative response-time  ?  I am thinking of keeping it under <100
ms
2. What would be a reasonable latency ( pollInterval ) on slave for
SolrReplication ( all slaves connected with a single backplane ). Is 1
minute pollInterval reasonable ?
3. Is NRT a better/viable option compared to SolrReplication ?

-Thanks,
Prasenjit

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