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https://issues.apache.org/jira/browse/SOLR-9089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15277850#comment-15277850
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Markus Jelsma commented on SOLR-9089:
-------------------------------------
Hello - no, the cores do not physically exist. The problem is solely in
Zookeeper.
> Nodes appear twice in state.json
> --------------------------------
>
> Key: SOLR-9089
> URL: https://issues.apache.org/jira/browse/SOLR-9089
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 6.0
> Reporter: Markus Jelsma
> Fix For: 6.0, 6.0.1
>
>
> We've just upgraded a development environment from 5.5 to Solr 6.0. After the
> upgrade, which went fine, we see two replica's appear twice in the cloud view
> (see below), both being leader.
> {code}
> {"search":{
> "replicationFactor":"3",
> "shards":{
> "shard1":{
> "range":"80000000-ffffffff",
> "state":"active",
> "replicas":{
> "core_node6":{
> "core":"search_shard1_replica1",
> "base_url":"http://idx5.oi.dev:8983/solr";,
> "node_name":"idx5.oi.dev:8983_solr",
> "state":"down"},
> "core_node2":{
> "core":"search_shard1_replica2",
> "base_url":"http://idx2.oi.dev:8983/solr";,
> "node_name":"idx2.oi.dev:8983_solr",
> "state":"active",
> "leader":"true"},
> "core_node3":{
> "core":"search_shard1_replica2",
> "base_url":"http://idx2.oi.dev:8983/solr";,
> "node_name":"idx2.oi.dev:8983_solr",
> "state":"down",
> "leader":"true"},
> "core_node5":{
> "core":"search_shard1_replica3",
> "base_url":"http://idx3.oi.dev:8983/solr";,
> "node_name":"idx3.oi.dev:8983_solr",
> "state":"down"}}},
> "shard2":{
> "range":"0-7fffffff",
> "state":"active",
> "replicas":{
> "core_node1":{
> "core":"search_shard2_replica1",
> "base_url":"http://idx4.oi.dev:8983/solr";,
> "node_name":"idx4.oi.dev:8983_solr",
> "state":"down"},
> "core_node2":{
> "core":"search_shard2_replica2",
> "base_url":"http://idx6.oi.dev:8983/solr";,
> "node_name":"idx6.oi.dev:8983_solr",
> "state":"down"},
> "core_node4":{
> "core":"search_shard2_replica3",
> "base_url":"http://idx1.oi.dev:8983/solr";,
> "node_name":"idx1.oi.dev:8983_solr",
> "state":"active",
> "leader":"true"}}}},
> "router":{"name":"compositeId"},
> "maxShardsPerNode":"1",
> "autoAddReplicas":"false"}}
> {code}
> See:
> http://lucene.472066.n3.nabble.com/Nodes-appear-twice-in-state-json-td4274504.html#none
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