Hi,

Which Solr version ?

Restart which node ? Solr ? ZK ? Only one node ?

Collections are missing in Solr console (lost in Zookeeper) but cores are
still present ?

Why put Zk data and datalog in a "temp" directory
(dataDir=/applis/24374-iplsp-00/IPLS/apache-zookeeper-3.5.5-bin/temp) ?
This directory is never purged ?

Why launch Solr with ZKHOST and other settings in the command line instead
of in solr.in.sh ?

There is a similar discussion thread these days "All cores gone along with
all solr configuration upon reboot".

Regards

Dominique


Le jeu. 27 août 2020 à 10:49, antonio.di...@bnpparibasfortis.com <
antonio.di...@bnpparibasfortis.com> a écrit :

> Good morning,
>
>
> I would like to get some help if possible.
>
>
>
> We have a 3 node Solr cluster (ensemble) with apache-zookeeper 3.5.5.
>
> It works fine until we need to restart one of the nodes. Then all the
> content of the collection gets deleted.
>
> This is a production environment, and every time there is a restart or a
> crash in one of the services/servers we loose lots of time restoring the
> collection and work.
>
> This is the way we start the nodes:
>
> su - ipls004p -c "/applis/24374-iplsp-00/IPLS/solr-8.3.0/bin/solr start
> -cloud -p 8987 -h s01vl9918254 -s
> /applis/24374-iplsp-00/IPLS/solr-8.3.0/cloud/node1/solr -z
> s01vl9918254:2181,s01vl9918256:2181,s01vl9918258:2181 -force"
>
> This is the zoo.cfg:
> 1.      The number of milliseconds of each tick
> tickTime=2000
> 2.      The number of ticks that the initial
> 3.      synchronization phase can take
> initLimit=10
> 4.      The number of ticks that can pass between
> 5.      sending a request and getting an acknowledgement
> syncLimit=5
> 6.      the directory where the snapshot is stored.
> 7.      do not use /tmp for storage, /tmp here is just
> 8.      example sakes.
> dataDir=/applis/24374-iplsp-00/IPLS/apache-zookeeper-3.5.5-bin/temp
> 9.      the port at which the clients will connect
> clientPort=2181
> 1.      the maximum number of client connections.
> 2.      increase this if you need to handle more clients
> #maxClientCnxns=60
> #
> 3.      Be sure to read the maintenance section of the
> 4.      administrator guide before turning on autopurge.
> #
> 5.
> http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
> #
> 6.      The number of snapshots to retain in dataDir
> #autopurge.snapRetainCount=3
> 7.      Purge task interval in hours
> 8.      Set to "0" to disable auto purge feature
> #autopurge.purgeInterval=1
> 4lw.commands.whitelist=mntr,conf,ruok
>
> server.1=s01vl9918256:3889:3888
> server.2=s01vl9918258:3889:3888
> server.3=s01vl9918254:3889:3888
> #server.4=s01vl9918255:3889:3888
>
>
>
>
>
> Thanks in advance
>
>
> Regards, Cordialement,
> Antonio Dinis
> TCC Web Portals Ops Engineers  |   BNP Paribas Fortis SA/NV
>
>
>
>
>
>
> T
>
> +32 (0)2 231 20994// Brussels Marais +1
>
>
>
>
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