old_contents: NUM_POOL_WORKERS = 5
  MESSAGES_PER_FETCH = 10
  CACHE_ROOT = '/exports/efs'
  LOCK_TIMEOUT = 10
  
new_contents: NUM_POOL_WORKERS = 5
  MESSAGES_PER_FETCH = 10
  CACHE_ROOT = '/exports/efs'
  LOCK_TIMEOUT = 30
  
subject: increase lock timeout.