1. 26 Apr, 2019 2 commits
  2. 16 Apr, 2019 5 commits
  3. 05 Apr, 2019 3 commits
  4. 01 Apr, 2019 1 commit
  5. 21 Mar, 2019 2 commits
  6. 16 Mar, 2019 1 commit
    • Julien Muchembled's avatar
      importer: fix possible data loss on writeback · e387ad59
      Julien Muchembled authored
      If the source DB is lost during the import and then restored from a backup,
      all new transactions have to written back again on resume. It is the most
      common case for which the writeback hits the maximum number of transactions
      per partition to process at each iteration; the previous code was buggy in
      that it could skip transactions.
      e387ad59
  7. 11 Mar, 2019 3 commits
  8. 26 Feb, 2019 2 commits
    • Julien Muchembled's avatar
      qa: new tool to stress-test NEO · 38e98a12
      Julien Muchembled authored
      Example output:
      
          stress: yes (toggle with F1)
          cluster state: RUNNING
          last oid: 0x44c0
          last tid: 0x3cdee272ef19355 (2019-02-26 15:35:11.002419)
          clients: 2308, 2311, 2302, 2173, 2226, 2215, 2306, 2255, 2314, 2356 (+48)
                  8m53.988s (42.633861/s)
          pt id: 4107
              RRRDDRRR
           0: OU......
           1: ..UO....
           2: ....OU..
           3: ......UU
           4: OU......
           5: ..UO....
           6: ....OU..
           7: ......UU
           8: OU......
           9: ..UO....
          10: ....OU..
          11: ......UU
          12: OU......
          13: ..UO....
          14: ....OU..
          15: ......UU
          16: OU......
          17: ..UO....
          18: ....OU..
          19: ......UU
          20: OU......
          21: ..UO....
          22: ....OU..
          23: ......UU
      38e98a12
    • Julien Muchembled's avatar
      master: fix typo in comment · ce25e429
      Julien Muchembled authored
      ce25e429
  9. 25 Feb, 2019 1 commit
  10. 31 Dec, 2018 7 commits
  11. 05 Dec, 2018 1 commit
  12. 21 Nov, 2018 4 commits
    • Julien Muchembled's avatar
      fixup! client: discard late answers to lockless writes · 8ef1ddba
      Julien Muchembled authored
      Since commit 50e7fe52,
      some code can be simplified.
      8ef1ddba
    • Julien Muchembled's avatar
      client: fix race condition between Storage.load() and invalidations · a2e278d5
      Julien Muchembled authored
      This fixes a bug that could manifest as follows:
      
        Traceback (most recent call last):
          File "neo/client/app.py", line 432, in load
            self._cache.store(oid, data, tid, next_tid)
          File "neo/client/cache.py", line 223, in store
            assert item.tid == tid, (item, tid)
        AssertionError: (<CacheItem oid='\x00\x00\x00\x00\x00\x00\x00\x01' tid='\x03\xcb\xc6\xca\xfd\xc7\xda\xee' next_tid='\x03\xcb\xc6\xca\xfd\xd8\t\x88' data='...' counter=1 level=1 expire=10000 prev=<...> next=<...>>, '\x03\xcb\xc6\xca\xfd\xd8\t\x88')
      
      The big changes in the threaded test framework are required because we need to
      reproduce a race condition between client threads and this conflicts with the
      serialization of epoll events (deadlock).
      a2e278d5
    • Julien Muchembled's avatar
      client: fix race condition in refcounting dispatched answer packets · 743026d5
      Julien Muchembled authored
      This was found when stress-testing a big cluster. 1 client node was stuck:
      
        (Pdb) pp app.dispatcher.__dict__
        {'lock_acquire': <built-in method acquire of thread.lock object at 0x7f788c6e4250>,
        'lock_release': <built-in method release of thread.lock object at 0x7f788c6e4250>,
        'message_table': {140155667614608: {},
                          140155668875280: {},
                          140155671145872: {},
                          140155672381008: {},
                          140155672381136: {},
                          140155672381456: {},
                          140155673002448: {},
                          140155673449680: {},
                          140155676093648: {170: <neo.lib.locking.SimpleQueue object at 0x7f788a109c58>},
                          140155677536464: {},
                          140155679224336: {},
                          140155679876496: {},
                          140155680702992: {},
                          140155681851920: {},
                          140155681852624: {},
                          140155682773584: {},
                          140155685988880: {},
                          140155693061328: {},
                          140155693062224: {},
                          140155693074960: {},
                          140155696334736: {278: <neo.lib.locking.SimpleQueue object at 0x7f788a109c58>},
                          140155696411408: {},
                          140155696414160: {},
                          140155696576208: {},
                          140155722373904: {}},
        'queue_dict': {140155673622936: 1, 140155689147480: 2}}
      
      140155673622936 should not be queue_dict
      743026d5
    • Julien Muchembled's avatar
  13. 15 Nov, 2018 3 commits
  14. 08 Nov, 2018 5 commits