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https://issues.apache.org/jira/browse/SOLR-13672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898708#comment-16898708
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Jan Høydahl commented on SOLR-13672:
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Ok, I reproduced it here. Apparently 3.5.5 has some new format of the response
in `conf` 4lw command, e.g.:
{noformat}
clientPort=2181
secureClientPort=-1
dataDir=/data/version-2
dataDirSize=201326640
dataLogDir=/datalog/version-2
dataLogSize=582
tickTime=2000
maxClientCnxns=60
minSessionTimeout=4000
maxSessionTimeout=40000
serverId=1
initLimit=5
syncLimit=2
electionAlg=3
electionPort=3888
quorumPort=2888
peerType=0
membership:
server.1=zoo1:2888:3888:participant;0.0.0.0:2181
server.2=zoo2:2888:3888:participant;0.0.0.0:2181
server.3=zoo3:2888:3888:participant;0.0.0.0:2181
version=0Connection closed by foreign host.
{noformat}
Obviously the parsing logic expects strictly {{key=value}} for each line, but
there is a line here that is only {{membership:}} which I believe causes some
parsing error in {{ZookeeperStatusHandler}}
> Admin UI/ZK Status page: Zookeeper 3.5 : 4lw.commands.whitellist error
> ----------------------------------------------------------------------
>
> Key: SOLR-13672
> URL: https://issues.apache.org/jira/browse/SOLR-13672
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 8.2
> Reporter: Jörn Franke
> Priority: Major
>
> After upgrading to Solr 8.2 and Zookeeper 3.5.5 one sees the following error
> in the Admin UI / Cloud / ZkStatus:
> {color:#222222}*"Errors: - membership: Check 4lw.commands.whitelist setting
> in zookeeper{color}
> {color:#222222}configuration file."*{color}
> {color:#222222}Aside of the UI, the Solr Cloud nodes seem to work perfectly
> normal.{color}
> {color:#222222}This issue only occurs with ZooKeeper ensembles. It does not
> appear if one Zookeeper standalone instance is used.{color}
> {color:#222222}We tried the 4lw.commands.whitelist with wildcard * and
> "mntr,conf,ruok" (with and without spaces).{color}
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