[APLO-276] Negative "swapped in" values reported by REST API

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6
• Assignee: Hiram R. Chirino
• Reporter: Lionel Cons
• Created: 10/Dec/12 08:45
• Updated: 08/Jan/13 20:13
• Resolved: 08/Jan/13 20:13

Description

Apollo sometimes report negative values for the "swapped in" messages. Querying /dest-metrics via REST I can currently see:

{
'consumer_count' => 5,
'consumer_counter' => 49,
'current_time' => '1355129045937',
'dequeue_item_counter' => 46637,
'dequeue_size_counter' => 76516044,
'dequeue_ts' => '1355129045564',
'enqueue_item_counter' => 12278,
'enqueue_size_counter' => 19169564,
'enqueue_ts' => '1355129045698',
'expired_item_counter' => 0,
'expired_size_counter' => 0,
'expired_ts' => '1355128842177',
'nack_item_counter' => 0,
'nack_size_counter' => 0,
'nack_ts' => '1355128842177',
'objects' => 11,
'producer_count' => 54,
'producer_counter' => 142,
'queue_items' => 0,
'queue_size' => 0,
'swap_in_item_counter' => 7722,
'swap_in_size_counter' => 16214004,
'swap_out_item_counter' => 7011,
'swap_out_size_counter' => 15197687,
'swapped_in_items' => -6046,
'swapped_in_size' => -9274521,
'swapped_in_size_max' => 9175040,
'swapping_in_size' => 0,
'swapping_out_size' => 0
};