Rob Fellows created NIFI-16352:
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Summary: UI - Disable Component State single-entry clear when the
listing is partial
Key: NIFI-16352
URL: https://issues.apache.org/jira/browse/NIFI-16352
Project: Apache NiFi
Issue Type: Bug
Components: Core UI
Reporter: Rob Fellows
Assignee: Rob Fellows
h2. Problem
When GET /state is truncated (totalEntryCount greater than the returned
entries; cap is 5000 via SortedStateUtils.MAX_COMPONENT_STATE_ENTRIES), the
Component State dialog already sets partialResults and shows “Showing partial
results.” Per-entry delete is still offered.
Clear-entry does not send “delete this key.” The UI POSTs the *visible
remainder* of the map. The server requires that payload to be the *full live
map minus exactly one key* (StandardComponentStateDAO.hasExactlyOneKeyRemoved).
A partial listing fails that check with:
Unable to remove a state key for component … Exactly one key removal is
supported.
Reproduced on DebugFlow with Generate State Entries above the GET cap (e.g.
clearing debug_state_key_00000).
h2. Fix
When partialResults is true:
* Do not offer per-entry delete (hide or disable the actions column)
* Do not dispatch clearComponentStateEntry
* Keep *Clear state* for the whole map
* Optional tooltip/copy explaining why single-entry clear is unavailable on a
partial listing
h2. Out of scope
* Changing the clear-entry API
* Raising the 5000-entry GET cap
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