Using property legacyCloud=true, coreNodeNames are well written by Solr
in core.properties file.
We are wondering if the problem comes from our configuration or the
bugfix https://issues.apache.org/jira/browse/SOLR-11503 ?
_*Without legacyCloud=true:*_
> Our configuration before Solr start:
.../cores/fr_green/core.properties on both hosts:
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
> Our configuration after Solr start:
.../cores/fr_green/core.properties host1:
#Written by CorePropertiesLocator
#Wed Apr 04 13:41:10 UTC 2018
name=fr_green
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
coreNodeName=core_node1
.../cores/fr_green/core.properties host2:
#Written by CorePropertiesLocator
#Wed Apr 04 13:41:10 UTC 2018
name=fr_green
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
coreNodeName=core_node1
--------------
_*With legacyCloud=true:*_
> Our configuration before Solr start:
.../cores/fr_green/core.properties on both hosts:
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
> Our configuration after Solr start:
.../cores/fr_green/core.properties host1:
#Written by CorePropertiesLocator
#Wed Apr 04 13:41:10 UTC 2018
name=fr_green
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
coreNodeName=core_node1
.../cores/fr_green/core.properties host2:
#Written by CorePropertiesLocator
#Wed Apr 04 13:41:10 UTC 2018
name=fr_green
shard=shard1
dataDir=/opt/kookel/data/searchSolrNode/solrindex/fr_green
coreNodeName=core_node2
=> coreNodeName for host2 is correct
On 03/04/18 15:46, Gael Jourdan-Weil wrote:
Hello,
We are trying to upgrade from Solr 6.6 to Solr 7.2.1 and we are using Solr
Cloud.
Doing some tests with 2 replicas, ZooKeeper doesn't know which one to elect as
a leader:
ERROR org.apache.solr.cloud.ZkController:getLeader:1206 - Error getting leader
from zk
org.apache.solr.common.SolrException: There is conflicting information about
the leader of shard: shard1 our state
says:http://host1:8080/searchsolrnodefr/fr_blue/ but zookeeper
says:http://host2:8080/searchsolrnodefr/fr_blue/
solr.xml file:
<bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
In the core.properties files, each replica has the same coreNodeName value:
"core_node1".
When changing this property on host2 with value "core_node2", ZooKeeper can
elect a leader and everything is fine.
Do we need to set genericCoreNodeNames to false in solr.xml ?
Gaël
