Himanshu Maurya created AMBARI-26647:
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Summary: Ambari Web React: Fix Capacity Scheduler config editing
format and add Refresh YARN Queues prompt
Key: AMBARI-26647
URL: https://issues.apache.org/jira/browse/AMBARI-26647
Project: Ambari
Issue Type: Story
Reporter: Himanshu Maurya
Assignee: Himanshu Maurya
Fix For: 3.1.0
h2. Summary
Opening a Host Summary page by clicking a component count on the Hosts List
page (or a service's component-count link, or a stack version's host-count
link) could leave the Host Summary page stuck without its host components
listed, or with a stale/unfiltered view. Root cause: these links used URL-param
routes ({{{}/main/hosts/component/:componentName{}}},
{{{}/main/hosts/version/:versionName/:versionStatus{}}}) that remounted the
Hosts List component on every navigation, discarding in-flight state and racing
the data fetch against the route change. Several related bugs stemmed from the
same remount and stale-closure issues.
h2. Changes
* Replaced the URL-param-based filter routes with a new
{{useHostsFilterNavigation}} hook that sets the Hosts List filter via the
shared filter context and navigates to the plain {{/main/hosts}} route (no
route params, no remount). All component-count and stack-version-count links
across the service summary views and the Stack Versions page now use this hook
instead of building a {{/main/hosts/component/...}} or
{{/main/hosts/version/...}} URL.
* Removed the now-unused {{hosts/component/:componentName}} and
{{hosts/version/:versionName/:versionStatus}} routes.
* Fixed a stale-closure bug in {{{}useHostConfigUpdater{}}}: WebSocket-driven
host/component/decommission updates read host models from a snapshot ref that
could be one render behind, occasionally overwriting fresh data with stale
data. Updates are now applied via functional {{setState}} so they always merge
into the latest committed state.
* Fixed the Host Summary page's loading spinner staying stuck: it was gated on
the cluster-wide component poll (which can lag on a large cluster) instead of
on the host's own loaded data.
* Fixed the Hosts List filter search bar silently wiping filters that were set
by another page: it was echoing its local filter state back into the shared
setter on every render, which could stomp a filter that had just been seeded by
a deep link.
* Fixed the Hosts List query no longer sending an unfiltered request on first
render when filters were already restored from a previous page.
h2. Impact
Component-count and version-count links from service summaries and the Stack
Versions page now reliably open a correctly filtered, fully-populated Hosts
List / Host Summary page, with no stale data or missed component listings
caused by the previous remount-based navigation.
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