Ingress gateway MEM has linear growth, and it consumes ~=750k for 1 Knative Service (#25145). The envoy mem release fix included in Istio 1.6.0+ resolved this issue. o Istiod MEM bumped with large numbers in some of the ingress gateway and recover automatically after ~30mins or restart Istiod. o From envoy logs, transient 503 UH "no healthy upstream" errors. o From Grafana dashboard, Pilot Pushes shows scalability issue #IstioCon o Radom peaks are fixed in istio 1.7.1 (istio #23029, envoyproxy #13037) o envoy still suffers from overload of XDS pushes in a high churn environment. Istio scalability optimization

between sidecar and service ● Background knowledge of ebpf ● Acceleration for Inbound/Outbound/Envoy to Envoy #IstioCon Istio-CNI ● The Istio CNI plugin performs the Istio mesh pod traffic redirection between sidecar and service Overhead sidecar traffic from 3 scopes ● Inbound ● Outbound ● Envoy to Envoy(same host) #IstioCon Dataflow After Acceleration(same host) #IstioCon ebpf Background distinguish socket from different network namespace #IstioCon Outbound Acceleration #IstioCon Envoy to Envoy Acceleration(same host) #IstioCon Performance Comparison #IstioCon Thank you!

ds-2020/ #IstioCon Impact on users https://thenewstack.io/when-service-meshes-can-emerge-from-envoy-istio-shadows/ #IstioCon Listening to our users UX Working Group - Upgrade Survey 2020 #IstioCon integration ○ Kubernetes Service APIs ○ Kubernetes Multi-cluster APIs ● Adopt & drive innovation in Envoy community ○ Delta xDS ○ HTTP2 tunnels https://istio.io/latest/blog/2020/tradewinds-2020/ #IstioCon

it all scale …? ● Extensive Data-plane & Control-plane scale testing ● Data-plane performance of Envoy is well documented ● Control-plane scale testing ○ Primary Goal ■ Understand Istio control-plane etc. params of Istio Pilot #IstioCon Future Direction ● Support for on-demand config pushes to Envoy via Incremental XDS ● Support for multiple trust domains & namespace isolation natively in Istio

cluster.local 2. Cached DNS response – 10.4.4.4 DNS queries to the system configured name servers. Envoy does not use the agent’s DNS cache. http req to 10.4.4.4 GET /status/200 httpbin.ns1.svc.cluster ○ Less engineering effort ○ Particularly valuable for some VM user scenarios ● Limitations ○ Envoy QUIC support in early stages ■ Security ● Both the downstream and upstream need to be trusted ■

minutes. But in the same amount of time, you may still be learning how to write filters rules for Envoy. #IstioCon Easy to extend ● NGINX + Lua ● multi-language plugins #IstioCon How to implement

Spanner Snowflake Database Navigator overview Simple and advanced View Configuring Filters Filter Database objects Bookmarks Projects overview Projects View Project Explorer Project security filters when the database does not support catalogs. Otherwise just read all database schemas and filter on client-side Omit type cache Do not use data types provided by driver Shutdown parameter Database 222 of 1010. DBeaver Lite User Guide 24.2.ea. Page 223 of 1010. You can browse, view, edit and filter Cassandra tables the same way as with regular (relational) tables. However, being a distributed

Spanner Snowflake Database Navigator overview Simple and advanced View Configuring Filters Filter Database objects Bookmarks Database Navigator panel DBeaver Ultimate User Guide 24.2.ea. Page zones/regions. If you have a large number of databases in your cloud, you can search or filter them using filter text above the cloud navigator. You can drag-and-drop cloud databases directly to or contents Overview Cloud Storage DBeaver Ultimate User Guide 24.2.ea. Page 180 of 1171. You can filter and sort your folders and files by their name or region using the interface's and Name Region

View Database Navigator panel DBeaver User Guide 24.2.ea. Page 7 of 1171. Configuring Filters Filter Database objects Bookmarks Projects overview Projects View Project Explorer Project security zones/regions. If you have a large number of databases in your cloud, you can search or filter them using filter text above the cloud navigator. You can drag-and-drop cloud databases directly to or window, use the dropdown menu to navigate through folders and view files stored in the cloud. You can filter and sort your folders and files by their name or region using the interface's and Name Region

actions_on_bottom actions_selection_counter date_hierarchy list_display list_display_links list_editable list_filter list_max_show_all list_per_page ordering paginator prepopulated_fields preserve_fields save_as save_on_top current draft version you can to filter the Version object: PageContent.objects.filter(language="en") # get all published English page contents PageContent.admin_manager.filter(page=my_page, language="en") djangocms-versioning [https://djangocms- versioning.readthedocs.io]! for content in PageContent.admin_manager.filter(page=my_page).current_content(): # iterates over the current (draft or published) version of