It doesn't matter as long as your shard count is balanced. The only difference between a primary and a replica is a flag that makes the cluster see it as a primary. Any queries will use a primary or a replica without concern.
On 11 February 2015 at 09:11, Josh Harris <[email protected]> wrote: > Just getting started with ElasticSearch, and I'm taking on a couple of > tasks as I get more familiar with it. > > We recently restarted the six nodes in our ES cluster to perform the patch > for the Ghost vulnerability. We turned off reallocation, shut down the > individual nodes, then rebooted each node and turned reallocation back on. > > We have 12 shards per index and one replica index. After the reboot of all > the nodes, we ended up with some nodes with three primary shards and one > replica index and some with three replicas and one primary shard. > > Is there a way to prevent this mismatch in the distribution of our primary > and replica shards? Would like to have 2 primary shards and 2 replica shard > per node. > > Also, is there a way to change a shard from a replica to a primary shard > without doing a relocation? > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/5ef0b6f3-6acf-4014-8746-1a7d236326e3%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/5ef0b6f3-6acf-4014-8746-1a7d236326e3%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8bFZY%2B8QpmD1m52fQ5B%3DystN2i9LDCbKKniUUfTQ5QwA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
