* Add test demonstrating race condition in State.Save()
Add TestStateFileRaceCondition which demonstrates the race condition
that can occur when multiple goroutines call State.Save() concurrently.
Without proper synchronization, concurrent writes to the same file can
result in corrupted JSON.
This test creates 50 concurrent goroutines each performing 20 Save()
operations to increase the likelihood of exposing the race condition.
Related to #4760🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Fix race condition in State.Save() with mutex and atomic write
Protect State.Save() with a mutex to prevent concurrent writes from
corrupting the state file. This fixes the race condition where multiple
goroutines could write to the file simultaneously, resulting in invalid
JSON.
The fix uses:
1. A package-level mutex to serialize all Save() operations
2. Atomic write pattern (write to temp file, then rename) for additional
safety against partial writes
This ensures the state file remains valid even under high concurrency.
Fixes#4760🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
* pluginmanager.State.verifyRunning() now checks the process corresponding to the pid is a plugin manager process
pluginmanager.State.kill() deletes the plugin manager state file even if the process is not found
- Execute RefreshConnections asyncronously
- Add connection_state table to indicate the loading state of connections
- Optimise RefreshConnections by cloning connection schemas
- Add locking to ensure only a single instance of RefreshConnections runs
- Start executing queries without waiting for connections to load, add smart error handling to wait for required connection
- Optimise autocomplete for high connection count
- Autocomplete and inspect data available before all conections are refreshed
- Update file watcher to respond to CHMOD, so thaat it pickes up deletion of file contents
Closes#3394Closes#3267
