Yes, ulimit -n reports 81920. ________________________________ From: herbert.helmstr...@systema.com <herbert.helmstr...@systema.com> Sent: Thursday, July 7, 2022 10:21 AM To: users@activemq.apache.org <users@activemq.apache.org> Subject: [External] - Antwort: [Ext] Too Many Open Files error trying to start Artemis server from a SystemD service
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hello Richard 8k should be enough sockets. You must at least re-login or reboot to make this active. Did you verify with ulimit -n ? What did you get? btw. After=network.target is sub-optimal. After=network-online.target is better. Check this out https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/<https://usg02.safelinks.protection.office365.us/?url=https%3A%2F%2Fwww.freedesktop.org%2Fwiki%2FSoftware%2Fsystemd%2FNetworkTarget%2F&data=05%7C01%7CRBERGMANN%40colsa.com%7Cc096e7f544e14cc74a2c08da60241118%7C9821086b78824b43a5edb1e979bee31f%7C1%7C0%7C637928006067698160%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=JBD7f6FQvzRRxyk3p8dCJRJOwPTNdJHhcXThKtVH5V0%3D&reserved=0> Best Regards Herbert ________________________________ Herbert Helmstreit Dipl.-Phys. 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Manfred Austen GmbH Schikanederstraße 2b - Posthof | 93053 Regensburg HRB 11256 Amtsgericht Dresden | USt.-ID DE 159 607 786 Geschäftsführer: Manfred Austen, CEO und Dr. Ulf Martin, COO Von: "Richard Bergmann" <rbergm...@colsa.com.INVALID> An: "users@activemq.apache.org" <users@activemq.apache.org> Datum: 07.07.2022 16:10 Betreff: [Ext] Too Many Open Files error trying to start Artemis server from a SystemD service ________________________________ I have been struggling with the Too Many Open Files issue running Artemis as a service within a service (if that is not confusing enough). My /etc/security/limits.conf files contains: ----- . . . # End of file * soft nofile 81920 * hard nofile 81920 ----- Originally it was set to 8192 and I was able to start the service from the command line: /opt/artemis/bin/artemis-service start When I did so and ran: lsof -p <artemis pid> | wc -l it reported some 5K files open by the process, hence the reason it wouldn't run with the default limit of 1024. I then tried to start the SystemD service: sudo systemctl start artemis using this in /etc/systemd/system/artemis.service: ----- [Unit] Description=ActiveMQ Artemis Service After=network.target [Service] ExecStart=/opt/artemis/bin/artemis-service start ExecStop=/opt/artemis/bin/artemis-service stop Type=forking User=<my id> Group=<my group> [Install] WantedBy=multi-user.target ----- and it failed with the Too Many Open Files error. So I increased it to the 81920 shown above, rebooted, and I STILL get the Too Many Open Files error. Is there something special about the way services are started such that it doesn't use /etc/security/limits.conf to determine the number of open files allowed for a process? Regards, Rich Bergmann ________________________________ The information contained in this e-mail and any attachments from COLSA Corporation may contain company sensitive and/or proprietary information, and is intended only for the named recipient to whom it was originally addressed. If you are not the intended recipient, any disclosure, distribution, or copying of this e-mail or its attachments is strictly prohibited. If you have received this e-mail in error, please notify the sender immediately by return e-mail and permanently delete the e-mail and any attachments. 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