poolcounter 1.1.3-2build2 (s390x binary) in ubuntu noble

 PoolCounter is a network daemon which provides mutex-like functionality,
 with a limited wait queue length. If too many servers try to do the same
 thing at the same time, the wait queue overflows and some configurable
 action might be taken by subsequent clients, such as displaying an error
 message or using a stale cache entry.