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Unable to create core [new_core] Caused by: null in apache solr 8.2.0 on centos 7

I installed apache solr on CentOS 7 to follow this link https://computingforgeeks.com/install-apache-solr-on-centos-fedora/

After Completing installation, solr status is

enter image description here

After running this command 

sudo systemctl enable solr

Show below message 

solr.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig solr on

I ran the command to create testcollection. 

sudo su - solr -c "/opt/solr/bin/solr create -c testcollection -n data_driven_schema_configs"

After running the command, error is showing below

ERROR: Error CREATEing SolrCore 'testcollection': Unable to create core [tpcollection3] Caused by: null

Can I get any suggestion for creating collection or core successfully.
Question are 

1. Why cannot enable solr on centos 7?
2. Why cannot create collection or core?
Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    Actually I solved to follow another way.

    You can extract your desired directory. I made a directory /solr 

    mkdir /solr

    Download latest version solr from latest release of Apache Solr

    Extract it

    tar -xvf solr-8.2.0.tgz

    Add a User

    useradd solr

    Give permission 

    chown -R solr:solr solr-8.2.0

    Go to your created user

    su - solr

    Go to Extracted solr bin file 

     cd solr-8.2.0/bin

    Start Solr, check solr status and create solr core Or collection

    ./solr start  
./solr status
./solr create -c testcollection -n data_driven_schema_configs

    You will see your created collection or core successful message. 

    Created new core 'testcollection'

  2. 0

    1. /sbin/chkconfig solr on is a command fallback to systemctl enable solr, it achieves the same task that is to enable Solr at startup. That said, there is a service installation script that should help install Solr as a service : /opt/solr/bin/install_solr_service.sh.

    2. Ensure you have set the right permissions on Solr directories and restart Solr, also I don’t think you need the sudo su part : 

      chown -R solr:solr /var/solr/
./solr restart
./solr create -c testcollection
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