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Type: Incident report
Resolution: Unresolved
Priority: Trivial
Fix Version/s: None
Affects Version/s: 7.0.18
Component/s: Server (S)
Labels:
None
Environment:

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FreeBSD 14.3-RELEASE-p3 amd64

$ curl -V
curl 8.15.0 (amd64-portbld-freebsd14.3) libcurl/8.15.0 OpenSSL/3.0.16 zlib/1.3.1 brotli/1.1.0 zstd/1.5.7 libidn2/2.3.8 libpsl/0.21.5 libssh2/1.11.1 nghttp2/1.66.0
Release-Date: 2025-07-16
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp ws wss
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM PSL SPNEGO SSL SSLS-EXPORT threadsafe TLS-SRP UnixSockets zstd

$ zabbix_server --version
zabbix_server (Zabbix) 7.0.18
Revision 8b4aa26fa68 25 August 2025, compilation time: Aug 26 2025 11:22:07

Copyright (C) 2025 Zabbix SIA
[...]

Compiled with OpenSSL 3.0.16 11 Feb 2025
Running with OpenSSL 3.0.16 11 Feb 2025

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FreeBSD 14.3-RELEASE-p3 amd64 $ curl -V curl 8.15.0 (amd64-portbld-freebsd14.3) libcurl/8.15.0 OpenSSL/3.0.16 zlib/1.3.1 brotli/1.1.0 zstd/1.5.7 libidn2/2.3.8 libpsl/0.21.5 libssh2/1.11.1 nghttp2/1.66.0 Release-Date: 2025-07-16 Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp ws wss Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM PSL SPNEGO SSL SSLS-EXPORT threadsafe TLS-SRP UnixSockets zstd $ zabbix_server --version zabbix_server (Zabbix) 7.0.18 Revision 8b4aa26fa68 25 August 2025, compilation time: Aug 26 2025 11:22:07 Copyright (C) 2025 Zabbix SIA [...] Compiled with OpenSSL 3.0.16 11 Feb 2025 Running with OpenSSL 3.0.16 11 Feb 2025

Hello,

After upgrading our Zabbix infrastructure from 6 to 7.0.18, we noticed that many HTTP Agent items got stuck and are queuing indefinitely. For instance, we have many HTTP Agent items collected every minute, and randomly, they get stuck and are never crawled/updated again until we restart the server instance.

We tried deploying a proxy to handle those HTTP Agent items, but the issue remains the same.

As Zabbix 7 supports threads in all pollers, we tweaked our configuration and even set them as default, but the behavior remains the same, the HTTP Agent items continue to be queued randomly.

Do you have any advice here, or could this be an issue with FreeBSD/curl that we're having?

Thank you in advance for your help.