Isaac Hebsh created SOLR-5092:
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Summary: Send shard request to multiple replicas
Key: SOLR-5092
URL: https://issues.apache.org/jira/browse/SOLR-5092
Project: Solr
Issue Type: Improvement
Components: clients - java, SolrCloud
Affects Versions: 4.4
Reporter: Isaac Hebsh
Priority: Minor
We have a case on a SolrCloud cluster. Queries takes too much QTime, due to a
randomly slow shard request. In a noticeable part of queries, the slowest shard
consumes more than 4 times qtime than the average.
Of course, deep inspection of the performance factor should be made on the
specific environment.
But, there is one more idea:
If shard request will be sent to all of the replicas of each shard, the
probability of all the replicas of the same shard to be the slowest is very
small. Obviously cluster works harder, but on a (very) low qps, it might be OK.
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