This feature enables the following:
Balanced migration of data objects from source Image store to destination Image store(s)
Complete migration of data
setting an image store to read-only
viewing download progress of templates across all data stores
Related Primate PR: apache/cloudstack-primate#326
This PR adds minor version support when mounting nfs on the SSVM as requested in #2861
The global setting "secstorage.nfs.version" has been changed to use the String data type which allows any minor version to be specified.
While migrate a vm, in the popup, the host dedicated to other accounts/domains are also 'Suitable" for migration, which is obviously wrong.
The same issue happens with api findHostsForMigration
Currently in cloudstack, when we click on "Acquire New Ip", it will
randomly acquire IP from the pool. With this enhancement, it is
possible to select the IP from the drop down IP list of that network.
Same thing applies for a VPC as well.
* Service layer changes for new way of tracking maintanence progress
* Fixes after offline code review
* Fix marvin tests
* Change state name and add documentation
* Fix test
* Fix and add more unit tests for different caseS
* Fix and enhance Marvin Tests
* Fixes for corner cases
* More fixes and logging
* UI fixes
* Some minor changes and reducing VMs on host for more contained tests
* Fixed ssh client auth problem causing test failure
* Code review changes + fixes + some more logging
* Fix flaky tests by adding delays between host states
* Added fetching only enabled hosts for tests
* Make port blocking KVM specific and refactor to handle failure
* Make failing migrations due to tagged host instead of port blocking
* Added additional check for migrating VMs
* Refactor to use single place for methods checking maintenance states
* Add missing HA config keys
* Change time value to seconds
* Change Integer to Long
* Using ConfigKey defaultValue
* Do some code refactoring
* Simplify code
Feature Specification: https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=95653548
Live storage migration on KVM under these conditions:
From source and destination hosts within the same cluster
From NFS primary storage to NFS cluster-wide primary storage
Source NFS and destination NFS storage mounted on hosts
In order to enable this functionality, database should be updated in order to enable live storage capacibilty for KVM, if previous conditions are met. This is due to existing conflicts between qemu and libvirt versions. This has been tested on CentOS 6 hosts.
Additional notes:
To use this feature set the storage_motion_supported=1 in the hypervisor_capability table for KVM. This is done by default as the feature may not work in some environments, read below.
This feature of online storage+VM migration for KVM will only work with CentOS6 and possible Ubuntu as KVM hosts but not with CentOS7 due to:
https://bugs.centos.org/view.php?id=14026https://bugzilla.redhat.com/show_bug.cgi?id=1219541
On CentOS7 the error we see is: " error: unable to execute QEMU command 'migrate': this feature or command is not currently supported" (reference https://ask.openstack.org/en/question/94186/live-migration-unable-to-execute-qemu-command-migrate/). Reading through various lists looks like the migrate feature with qemu may be available with paid versions of RHEL-EV but not centos7 however this works with CentOS6.
Fix for CentOS 7:
Create repo file on /etc/yum.repos.d/:
[qemu-kvm-rhev]
name=oVirt rebuilds of qemu-kvm-rhev
baseurl=http://resources.ovirt.org/pub/ovirt-3.5/rpm/el7Server/
mirrorlist=http://resources.ovirt.org/pub/yum-repo/mirrorlist-ovirt-3.5-el7Server
enabled=1
skip_if_unavailable=1
gpgcheck=0
yum install qemu-kvm-common-ev-2.3.0-29.1.el7.x86_64 qemu-kvm-ev-2.3.0-29.1.el7.x86_64 qemu-img-ev-2.3.0-29.1.el7.x86_64
Reboot host
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Allows creating storage offerings associated with particular domain(s) and zone(s). In create disk/storage offfering form UI, a mult-select control has been addded to select desired zone(s) and domain select element has been made multi-select.
createDiskOffering API has been modified to allow passing list of domain and zone IDs with keys domainids and zoneids respectively. These lists are stored in DB in cloud.disk_offering_details table with 'domainids' and 'zoneids' key as string of comma separated list of IDs. Response for create, update and list disk offering APIs will return domainids, domainnames, zoneids and zonenames in details object of offering.
listDiskOfferings API has been modified to allow passing zoneid to return only offerings which are associated with the zone.
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
* Keep connection alive when on maintenance
* Refactor cancel maintenance and unit tests
* Add marvin tests
* Refactor
* Changing the way we get ssh credentials
* Add check on SSH restart and improve marvin tests
* Migrate template to target host if needed.
Fix KVM VM local storage live migration by migrating its template to the
target host if needed.
* Address reviewer and add method that updates the DB template reference
* Remove deprecated Config.PrimaryStorageDownloadWait
* Code formating of @Inject to follow checkstyle
* - Offline VM and Volume migration on Vmware hypervisor hosts
- Also add VM disk consolidation call on successful VM migrations
* Fix indentation of marvin test file and reformat against PEP8
* * Fix few comment typos
* Refactor debug messages to use String.format() when debug log level is enabled.
* Send list of commands returned by hypervisor Guru instead of explicitly selecting the first one
* Fix unhandled NPE during VM migration
* Revert back to distinct event descriptions for VM to host or storage pool migration
* Reformat test_primary_storage file against PEP-8 and Remove unused imports
* Revert back the deprecation messages in the custom StringUtils class to favour the use of the ApacheUtils
A corner case was found on 4.11.2 for #2493 leading to an infinite loop in state PrepareForMaintenance
To prevent such cases, in which failed migrations are detected but still running on the host, this feature adds a new cluster setting host.maintenance.retries which is the number of retries before marking the host as ErrorInMaintenance if migration errors persist.
How Has This Been Tested?
- 2 KVM hosts, pick one which has running VMs as H
- Block migrations ports on H to simulate failures on migrations:
iptables -I OUTPUT -j REJECT -m state --state NEW -m tcp -p tcp --dport 49152:49215 -m comment --comment 'test block migrations' iptables -I OUTPUT -j REJECT -m state --state NEW -m tcp -p tcp --dport 16509 -m comment --comment 'test block migrations
- Put host H in Maintenance
- Observe that host is indefinitely in PrepareForMaintenance state (after this fix it goes into ErrorInMaintenance after retrying host.maintenance.retries times)
