Thanks Eric for looking into this.. But as I said before I confirmed that the paths in zookeeper were changed to local path than the /tmp that comes default with package. Does the zoo.cfg need to have autopurge settings ??which I don’t have in my config
Also I did make sure that zoo.cfg inside solr and my external zoo are pointing to the same and have same configs if it matters. Sent from my iPhone > On Aug 22, 2020, at 9:07 AM, Erick Erickson <erickerick...@gmail.com> wrote: > > Sounds like you didn’t change Zookeeper data dir. Zookeeper defaults to > putting its data in /tmp/zookeeper, see the zookeeper config file. And, of > course, when you reboot it goes away. > > I’ve always disliked this, but the Zookeeper folks did it that way. So if you > just copy zoo_sample.cfg to zoo.cfg that’s what you get, not under Solr’s > control. > > As for how to recover, assuming you put your configsets in some kind of > version control as we recommend: > > 0> set up Zookeeper to keep it’s data somewhere permanent. You may want to > archive snapshots upon occasion as well. > > 1> save away the data directory for _one_ replica from each shard of every > collection somewhere. You should have a bunch of directories like > SOLR_HOME/…./collection1_shard1_replica_n1/data. > > 2> recreate all your collections with leader-only new collections with the > exact same number of shards, i.e. shards with only a single replica. > > 3> shut down all your Solr instances > > 4> copy the data directories you saved in <2>. You _MUST_ copy to > corresponding shards. The important bit is that a data directory from > collection1_shard1 goes back to collection1_shard1. If you copy it back to > collection1_shard2 Bad Things Happen. Actually, I’d delete the target data > directories first and then copy. > > 5> restart your Solr instances and verify they look OK. > > 6> use the collections API ADDREPLICA to build out your collections. > > Best, > Erick > >> On Aug 22, 2020, at 12:10 AM, yaswanth kumar <yaswanth...@gmail.com> wrote: >> >> Can someone help me on the below issue?? >> >> I have configured solr 8.2 with one zookeeper 3.4 and 3 solr nodes >> >> All the configs were pushed initially and Also Indexed all the data into >> multiple collections with 3 replicas on each collection >> >> Now part of server maintenance these solr nodes were restarted and once they >> came back solr could became empty.. lost all the collections .. all >> collections specific instance directories in the path /solr/server/solr >> Were deleted ..but data folders are intact nothing lost.. not really sure on >> how to recover from this situation. >> >> Did make sure that the zoo.cfg was properly configured (permanent paths for >> zoo data and logs instead of /tmp )as I am using external zoo instead of the >> one that comes with solr. >> >> Solr data path is a nas storage which is a common for all three solr nodes >> >> Another data point is that I enabled solr basic authentication as well if >> that’s making any difference. Even clusterstate , schema’s, security Json >> were all lost.. really looking for a help in understanding to prevent this >> happening again. >> >> Sent from my iPhone >
