Thanx for the response. There were few occurrences of our SolrCloud cluster where when a primary went down in a shard, the replica didn't get promoted which eventually led to downtime. We had to restart zookeeper services (we have three zookeeper nodes) to promote the replica into primary.
But I just want to make sure our setup is correct On Wed, Dec 16, 2015 at 10:01 AM, Upayavira <u...@odoko.co.uk> wrote: > If you have two replicas (one leader/one replica) for each shard of your > collection, and you ensure that no two replicas are on the same node, > and you have three independent Zookeeper nodes, then yes, you should > have HA. > > Upayavira > > On Wed, Dec 16, 2015, at 05:48 PM, Peter Tan wrote: > > Hi Jack, > > > > Appreciate you helping me to clear this up. > > > > For replicationFactor = 1, that means only keeping one copy of document > > in > > the cluster. > > > > Currently, for our SolrCloud setup, we have two replicas (primary and > > replica) per each shard (total of 5 shards). This should achieve the HA > > already, correct? > > > > > > > > On Tue, Dec 15, 2015 at 10:09 PM, Jack Krupansky > > <jack.krupan...@gmail.com> > > wrote: > > > > > There is no HA with a single replica for each shard. Replication factor > > > must be at least 2 for HA. > > > > > > -- Jack Krupansky > > > > > > On Wed, Dec 16, 2015 at 12:38 AM, Peter Tan <aluca...@gmail.com> > wrote: > > > > > > > Hi Jack, What happens when there is only one replica setup? > > > > > > > > On Tue, Dec 15, 2015 at 9:32 PM, Jack Krupansky < > > > jack.krupan...@gmail.com> > > > > wrote: > > > > > > > > > Solr Cloud provides HA when you configure at least two replicas for > > > each > > > > > shard and have at least 3 zookeepers. That's it. No deck or detail > > > > document > > > > > is needed. > > > > > > > > > > > > > > > > > > > > -- Jack Krupansky > > > > > > > > > > On Tue, Dec 15, 2015 at 9:07 PM, < > k.viswanath.bhara...@accenture.com> > > > > > wrote: > > > > > > > > > > > Hi Team, > > > > > > > > > > > > Can you help me in understanding in achieving the Solr High > > > > Availability > > > > > . > > > > > > > > > > > > Appreciate you have a detail document or Deck on more details. > > > > > > > > > > > > Thank you > > > > > > Viswanath Bharathi > > > > > > Accenture | Delivery Centres for Technology in India > > > > > > CDC 2, Chennai, India > > > > > > Mobile: +91 9886259010 > > > > > > www.accenture.com<http://www.accenture.com/> | www.avanade.com< > > > > > > http://www.avanade.com/> > > > > > > > > > > > > > > > > > > ________________________________ > > > > > > > > > > > > This message is for the designated recipient only and may contain > > > > > > privileged, proprietary, or otherwise confidential information. > If > > > you > > > > > have > > > > > > received it in error, please notify the sender immediately and > delete > > > > the > > > > > > original. Any other use of the e-mail by you is prohibited. Where > > > > allowed > > > > > > by local law, electronic communications with Accenture and its > > > > > affiliates, > > > > > > including e-mail and instant messaging (including content), may > be > > > > > scanned > > > > > > by our systems for the purposes of information security and > > > assessment > > > > of > > > > > > internal compliance with Accenture policy. > > > > > > > > > > > > > > > > > > > > > > > > > ______________________________________________________________________________________ > > > > > > > > > > > > www.accenture.com > > > > > > > > > > > > > > > > > > >
