Odd...the unload command should be enough... On Tue, Nov 13, 2012 at 5:26 AM, Gilles Comeau <gilles.com...@polecat.co> wrote: > Hi all, > > We've just updated to SOLR 4.0 production and Zookeeper 3.3.6 from SOLR 4.0 > development version circa November 2011. We keep 6 months of data online in > our primary cluster, and archive off old stuff to a slower disk archive > cluster. We used to remove SOLR cores with the following code, but > everything has changed in Zookeeper now. > > Old code to remove cores from Zookeeper: > > > curl > http://127.0.0.1:8080/solr/admin/cores?action=UNLOAD&core=${SHARD}<http://127.0.0.1:8080/solr/admin/cores?action=UNLOAD&core=$%7bSHARD%7d> > > echo "Removing indexes from all Zookeeper hosts" > for (( i=0; i<${#ZK_HOSTS[*]}; i++ )) > do > $JAVA -cp > .:/apps/zookeeper-3.3.5/zookeeper-3.3.5.jar:/apps/zookeeper-3.3.5/lib/jline-0.9.94.jar:/apps/zookeeper-3.3.5/lib/log4j-1.2.15.jar > org.apache.zookeeper.ZooKeeperMain -server ${ZK_HOSTS[$i]} delete > /collections/polecat/shards/solrenglish:8080_solr_$SHARD/$HOSTNAME:8080_solr_$SHARD > $JAVA -cp > .:/apps/zookeeper-3.3.5/zookeeper-3.3.5.jar:/apps/zookeeper-3.3.5/lib/jline-0.9.94.jar:/apps/zookeeper-3.3.5/lib/log4j-1.2.15.jar > org.apache.zookeeper.ZooKeeperMain -server ${ZK_HOSTS[$i]} delete > /collections/polecat/shards/solrenglish:8080_solr_$SHARD > Done > > curl http://solrmaster01:8080/solr/admin/cores?action=RELOAD&core=master > > Now that we have migrated, I have tried removing cores from Zookeeper by > removing the stuff for the unloaded core in "leaders" and "leader_elect", but > for some reason SOLR keeps sending the requests to the shard, and I end up > with the "no servers hosting shard" error. > > Does anyone know how to remove a SOLR core from a SOLR server and have > Zookeeper updated, and have distributed queries still work? The only thing > I know how to do now is stop tomcat, stop zookeeper, clear out the data > directory and then restart both. This isn't really ideal for a process I'd > like to have running each night, and surely it is something others have it. > I've tried google searching, and what I find is references to the bug where > solr notifies zookeeper on core unloads which is marked as fixed, and people > talking about how it doesn't work but if your run reloads on each core, it > will work. (also doesn't work when I do it) > > Regards, > > Gilles Comeau
-- - Mark
