[TS-1963] upgrade the version number for cache between 3.2.x and 3.4.x

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.4
• Fix Version/s: 3.3.5
• Component/s: Cache
• Assignee: Alan M. Carroll
• Reporter: Bryan Call
• Created: 20/Jun/13 17:03
• Updated: 09/Aug/13 14:34
• Resolved: 29/Jul/13 22:17

Description

If you don't remove the cache between versions I have seen weird behavior on trying to get locks for reading from cache:

perf top output:

Samples: 379K of event 'cycles', Event count (approx.): 159277054084
 20.54%  libpthread-2.12.so        [.] pthread_mutex_trylock
 10.59%  traffic_server            [.] CacheVC::openReadStartHead(int, Event*)
  5.49%  traffic_server            [.] MutexTryLock::MutexTryLock(ProxyMutex*, EThread*)
  3.39%  libtsutil.so.3            [.] ink_freelist_new
  3.17%  traffic_server            [.] EThread::process_event(Event*, int)
  3.06%  [kernel]                  [k] _spin_lock_bh
  2.56%  libtsutil.so.3            [.] ink_freelist_free
  1.48%  [kernel]                  [k] _spin_lock
  1.46%  traffic_server            [.] EThread::execute()
  1.44%  libpthread-2.12.so        [.] pthread_mutex_unlock
  1.33%  [kernel]                  [k] copy_user_generic_string
  1.22%  traffic_server            [.] Ptr<ProxyMutex>::operator=(ProxyMutex*)

Issue Links

• is related to: TS-1339 Offset table is not accounting for multiple alternate documents
• is related to: TS-954 when use raw disks, some blocks is lost when calculating disk usable blocks