On 12/5/2019 12:28 PM, Vignan Malyala wrote:
I currently have 500 collections in my stand alone solr. Bcoz of day by day
increase in Data, I want to convert it into solr cloud.
Can you suggest me how to do it successfully.
How many shards should be there?
How many nodes should be there?
Are so called nodes different machines i should take?
How many zoo keeper nodes should be there?
Are so called zoo keeper nodes different machines i should take?
Total how many machines i have to take to implement scalable solr cloud?
500 collections is large enough that running it in SolrCloud is likely
to encounter scalability issues. SolrCloud's design does not do well
with that many collections in the cluster, even if there are a lot of
machines.
There's a lot of comment history on this issue:
https://issues.apache.org/jira/browse/SOLR-7191
Generally speaking, each machine should only house one Solr node,
whether you're running cloud or not. If each one requires a really huge
heap, it might be worthwhile to split it, but that's the only time I
would do so. And I would generally prefer to add more machines than to
run multiple Solr nodes on one machine.
One thing you might do, if the way your data is divided will permit it,
is to run multiple SolrCloud clusters. Multiple clusters can all use
one ZooKeeper ensemble.
ZooKeeper requires a minimum of three machines for fault tolerance.
With 3 or 4 machines in the ensemble, you can survive one machine
failure. To survive two failures requires at least 5 machines.
Thanks,
Shawn
