TadiosAbebe commented on issue #11141: URL: https://github.com/apache/cloudstack/issues/11141#issuecomment-3570006079
> thanks for the information [@bradh352](https://github.com/bradh352) [@TadiosAbebe](https://github.com/TadiosAbebe) [@jgotteswinter](https://github.com/jgotteswinter) > > I suspected it is due to that all libvirt operations use the same instance of `LibvirtConnection`. a libvirt operation might delay other libvirt operations. we could introduce a thread pool of `LibvirtConnection` if it supports concurrent operations. > > however, I do not know why the issue became very often in recent releases. can everyone share the below ? > > * global configurations (`cmk list configurations filter=id,name,value keyword=stats.interval`) > * java version of kvm host (`java --version`) > * OS distribution of kvm host (`cat /etc/os-release`) > * libvirt and qemu version of kvm host (`virsh version`) > * Approx. number of VMs on kvm host ``` () 🐱 > list configurations filter=id,name,value keyword=stats.interval { "configuration": [ { "name": "autoscale.stats.interval", "value": "60" }, { "name": "cluster.heartbeat.threshold", "value": "150000" }, { "name": "database.server.stats.interval", "value": "60" }, { "name": "database.server.stats.retention", "value": "3" }, { "name": "direct.network.stats.interval", "value": "86400" }, { "name": "external.network.stats.interval", "value": "300" }, { "name": "host.stats.interval", "value": "60000" }, { "name": "management.server.stats.interval", "value": "60" }, { "name": "router.stats.interval", "value": "300" }, { "name": "storage.stats.interval", "value": "60000" }, { "name": "storpool.storage.stats.interval", "value": "3600" }, { "name": "storpool.volumes.stats.interval", "value": "3600" }, { "name": "vm.disk.stats.interval", "value": "0" }, { "name": "vm.disk.stats.interval.min", "value": "300" }, { "name": "vm.network.stats.interval", "value": "0" }, { "name": "vm.network.stats.interval.min", "value": "300" }, { "name": "vm.stats.interval", "value": "60000" }, { "name": "volume.stats.interval", "value": "600000" } ], "count": 18 } ``` ``` root@host1:/home/zgadmin# java --version openjdk 17.0.16 2025-07-15 OpenJDK Runtime Environment (build 17.0.16+8-Ubuntu-0ubuntu124.04.1) OpenJDK 64-Bit Server VM (build 17.0.16+8-Ubuntu-0ubuntu124.04.1, mixed mode, sharing) ``` ``` root@host1:/home/zgadmin# cat /etc/os-release PRETTY_NAME="Ubuntu 24.04.2 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.2 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/"; SUPPORT_URL="https://help.ubuntu.com/"; BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; UBUNTU_CODENAME=noble LOGO=ubuntu-logo ``` ``` root@host1:/home/zgadmin# virsh version Compiled against library: libvirt 10.0.0 Using library: libvirt 10.0.0 Using API: QEMU 10.0.0 Running hypervisor: QEMU 8.2.2 ``` ``` Approx. number of VMs per kVM host is in beteen 8 to 10 for me. ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
