Oh found the answer myself. Its the GET methods URL length that limits the number of shards.
Niki On 25 July 2013 10:14, Nicole Lacoste <niki.laco...@gmail.com> wrote: > Is there a limit on the number of shards? > > Niki > > > On 24 July 2013 01:14, Jack Krupansky <j...@basetechnology.com> wrote: > >> 2.1 billion documents (including deleted documents) per Lucene index, but >> essentially per Solr shard as well. >> >> But don’t even think about going that high. In fact, don't plan on going >> above 100 million unless you do a proof of concept that validates that you >> get acceptable query and update performance . There is no hard limit >> besides that 2.1 billion Lucene limit, but... performance will vary. >> >> -- Jack Krupansky >> >> -----Original Message----- From: Ali, Saqib >> Sent: Tuesday, July 23, 2013 6:18 PM >> To: solr-user@lucene.apache.org >> Subject: maximum number of documents per shard? >> >> still 2.1 billion documents? >> > > > > -- > * <https://twitter.com/#!/niki_in_france>* > -- * <https://twitter.com/#!/niki_in_france>*