On 7/13/22 14:39, Bejoy Thankachan wrote:
SolrCore Initialization Failures<https://i.stack.imgur.com/9R0xy.png> I have a 3 node
solr 8.11.1 setup (port 8983) with 3 node external zookeeper 3.7.1 (p 2181). After I did a
clean setup, I see Solr Core Initialization error in the admin console. The error is below.
I have no idea how to avoid this error? Any help will be appreciated. solr error
image<https://i.stack.imgur.com/L4ysZ.png>
The following bits in the large amount of log data seem relevant:
Could not find collection : db
Could not find collection : solr
Could not find collection : tika
Could not find collection : mail
Could not find collection : atom
These are the names of the cores in the DIH example:
https://solr.apache.org/guide/8_5/uploading-structured-data-store-data-with-the-data-import-handler.html#solrs-dih-examples
It looks like you took a Solr install that was not running in cloud
mode, with the five cores created by the DIH example, and asked it to
start in cloud mode. For each of the cores in that install, the error
messages are telling you that the collection with the same name was not
found in the cluster data from zookeeper. Therefore it failed to start
those cores.
I'm actually surprised that Solr didn't just completely delete the cores
without notice.
Each Solr node in a new SolrCloud install must begin with no index
cores. SolrCloud works partly within Solr and partly within the cluster
database that lives in ZK.
Thanks,
Shawn
