Change in ovirt-engine[ovirt-engine-4.0]: dashboard: Optimize VM status query

Tal Nisan has submitted this change and it was merged. Change subject: dashboard: Optimize VM status query ...................................................................... dashboard: Optimize VM status query - the vm_samples_history table will grow significantly every minute (number of VMs each time). This made the original query slow as it needs to go through the entire table to lookup the right history_id. I modified the query to first filter on time frame, and then select the latest history_id from the filtered set. The query now takes < 100ms. - Made similar changes to the top 10 cpu/mem/storage vm lookup to filter by timeframe as significantly reducing the query time. - Verified all other queries are fast in a scale environment. - Note all the queries are using the DWH views and one of those views is missing an index on vm_id and history_datetime. These will not be fast unless that index is added. Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1345934 Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1345947 Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1345944 Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1344428 Change-Id: I834e3231c72fb3f0bcbadb67870c143bfb98c69e Signed-off-by: Alexander Wels <awels(a)redhat.com&gt; --- M frontend/webadmin/modules/frontend/src/main/resources/org/ovirt/engine/ui/frontend/server/dashboard/dao/StorageDomainDwhDAO.properties M frontend/webadmin/modules/frontend/src/main/resources/org/ovirt/engine/ui/frontend/server/dashboard/dao/VmDwhDAO.properties 2 files changed, 73 insertions(+), 68 deletions(-) Approvals: Alexander Wels: Verified Jenkins CI: Passed CI tests Greg Sheremeta: Looks good to me, approved -- To view, visit https://gerrit.ovirt.org/59570 To unsubscribe, visit https://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I834e3231c72fb3f0bcbadb67870c143bfb98c69e Gerrit-PatchSet: 2 Gerrit-Project: ovirt-engine Gerrit-Branch: ovirt-engine-4.0 Gerrit-Owner: Alexander Wels <awels(a)redhat.com&gt; Gerrit-Reviewer: Alexander Wels <awels(a)redhat.com&gt; Gerrit-Reviewer: Greg Sheremeta <gshereme(a)redhat.com&gt; Gerrit-Reviewer: Jenkins CI Gerrit-Reviewer: Tal Nisan <tnisan(a)redhat.com&gt; Gerrit-Reviewer: Vojtech Szocs <vszocs(a)redhat.com&gt; Gerrit-Reviewer: gerrit-hooks <automation(a)ovirt.org&gt;