zengxz created SOLR-17610:
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Summary: Solr 9.7 on CentOS 7 with OpenJDK 11 has a 10-second
delay for local network client access
Key: SOLR-17610
URL: https://issues.apache.org/jira/browse/SOLR-17610
Project: Solr
Issue Type: Bug
Environment: * Solr Version: 9.7 (Locally Installed)
* Operating System: CentOS 7
* Java Version: OpenJDK 11
Reporter: zengxz
Solr 9.7 is locally installed on CentOS 7 with OpenJDK 11. When accessed from a
local network client, there is a 10-second delay. The Solr server and the local
network client have different nameservers. Adding the client's hostname to the
{{/etc/hosts}} file on the Solr server resolved the issue temporarily.
Initially, it was suspected that Jetty 10's DNS reverse lookup of the client's
hostname was causing the delay. Disabling the request log did not resolve the
issue. Disabling the security manager by setting {{export
SOLR_SECURITY_MANAGER_ENABLED=false}} or granting all permissions eliminated
the delay. It is unclear which specific permissions might be missing that are
causing the delay.
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