Hi Yogesh, Thanks a lot for promptly following this up. I kind of "fix" or bypassed the problem by examining the /var/log/httpd/error_log, 1. The error log suggested something wrong with the libpq package. The RHEL 8 instance has libpq5, but not libpq. So I installed:sudo yum install -y libpqsudo yum install -y libpq-devel # not 100% sure we need this one At this point, somehow I feel I need to reinstall the pgadmin4, 'cause pgadmin4 perhaps would be "aware" of the new libpq, so I removed pgadmin4 and reinstalled it:sudo yum remove pgadmin4 sudo yum install pgadmin4-websudo /usr/pgadmin4/bin/setup-web.sh 2. Restarted the server, the error log complained something wrong with psycopg python library. I have python 3.6 and python 3.11 on the node already, and later pgadmin4 brought in python 3.9. I did the followings: cd /usr/pgadmin4/venv/binsource activate #make sure I am in the python 3.9 environmentpip install "psycopg[binary,pool]" deactivate 3. Restarted the server, the error log now suggested lack of privileges to access psycopg, I did the followings cd /usr/pgadmin4/venv/lib/python3.9/site-packageschmod -R 755 * Finally, restart the httpd, everything seems working now. Please let me know if this could be the right solution, or any alternative ones. Many thanks.
Daxu Yin 410-340-5842 On Wednesday, September 6, 2023 at 06:39:22 AM EDT, Yogesh Mahajan <yogesh.maha...@enterprisedb.com> wrote: Hi Daxu, Can you please share apache2 logs located at /etc/httpd/logs/error.log? Thanks,Yogesh MahajanEnterpriseDB On Wed, Sep 6, 2023 at 2:14 AM Daxu Yin <daxu...@yahoo.com> wrote: Hi, We've just installed pgadmin4 version 7.6 following the instructions at Download (pgadmin.org)However, we've received "500 Internal Server Error" at http://127.0.0.1/pgadmin4 There is zero content at /var/log/pgadmin/pgadmin4.log Could anyone kindly help us? Many thanks in advance, Daxu Yin 410-340-5842