vamseeachanta Common Issues
Common Issues
Issue: Callback not firing
# Check component IDs match exactly
# Verify Input/Output/State decorators
# Check for circular dependencies
Issue: Slow initial load
# Use loading states
dcc.Loading(
children=[dcc.Graph(id="graph")],
type="circle"
)
Issue: Memory leaks
# Clear caches periodically
# Use background callbacks for long operations
# Limit data in client-side stores
Issue: Multiple callback outputs
# Use allow_duplicate=True for same output
@callback(
Output("output", "children", allow_duplicate=True),
Input("button2", "n_clicks"),
prevent_initial_call=True
)