redis `schedulePending` target messages continue to increase

[sun617]

Example

• Create stream(taskq:{test}:stream) and consumer group(taskq)

127.0.0.1:6379> XGROUP CREATE taskq:{test}:stream taskq $ MKSTREAM
OK

• Add 3 messages

127.0.0.1:6379> XADD taskq:{test}:stream * body apple
"1634099225543-0"
127.0.0.1:6379> XADD taskq:{test}:stream * body orange
"1634099233517-0"
127.0.0.1:6379> XADD taskq:{test}:stream * body banana
"1634099237506-0"
127.0.0.1:6379> XLEN taskq:{test}:stream
(integer) 3

• This time pending list is empty

127.0.0.1:6379> XPENDING taskq:{test}:stream taskq - + 5
(empty array)

• Consumer foo allocated 3 messages

127.0.0.1:6379> XREADGROUP GROUP taskq foo STREAMS taskq:{test}:stream >
1) 1) "taskq:{test}:stream"
   2) 1) 1) "1634099225543-0"
         2) 1) "body"
            2) "apple"
      2) 1) "1634099233517-0"
         2) 1) "body"
            2) "orange"
      3) 1) "1634099237506-0"
         2) 1) "body"
            2) "banana"
127.0.0.1:6379> XPENDING taskq:{test}:stream taskq - + 5
1) 1) "1634099225543-0"
   2) "foo"
   3) (integer) 71364
   4) (integer) 1
2) 1) "1634099233517-0"
   2) "foo"
   3) (integer) 71364
   4) (integer) 1
3) 1) "1634099237506-0"
   2) "foo"
   3) (integer) 71364
   4) (integer) 1

• When message processed successfully the message will be deleted, but pending list remains 3 messages

127.0.0.1:6379> XDEL taskq:{test}:stream 1634099225543-0
(integer) 1
127.0.0.1:6379> XPENDING taskq:{test}:stream taskq - + 5
1) 1) "1634099225543-0"
   2) "foo"
   3) (integer) 122716
   4) (integer) 1
2) 1) "1634099233517-0"
   2) "foo"
   3) (integer) 122716
   4) (integer) 1
3) 1) "1634099237506-0"
   2) "foo"
   3) (integer) 122716
   4) (integer) 1

All messages will leaves in pending list that schedulePending method will got an error trying to release a deleted messages issue: https://github.com/vmihailenco/taskq/issues/143

When Delete and Release do we should execute XACK and then execute XDEL https://github.com/vmihailenco/taskq/blob/v3/redisq/queue.go#L225 https://github.com/vmihailenco/taskq/blob/v3/redisq/queue.go#L245

127.0.0.1:6379> XACK taskq:{test}:stream taskq 1634099233517-0
(integer) 1
127.0.0.1:6379> XDEL taskq:{test}:stream 1634099233517-0
(integer) 1
127.0.0.1:6379> XPENDING taskq:{test}:stream taskq - + 5
1) 1) "1634099225543-0"
   2) "foo"
   3) (integer) 199531
   4) (integer) 1
2) 1) "1634099237506-0"
   2) "foo"
   3) (integer) 199531
   4) (integer) 1

[lzap]

Hello, is this still an issue?