github.com/cockroachdb/pebble@v1.1.2/objstorage/objstorageprovider/testdata/provider/shared_attach_after_unref (about)

     1  # Tests when an object is unrefed before it is attached to another provider.
     2  
     3  open p5 5
     4  ----
     5  <local fs> mkdir-all: p5 0755
     6  <local fs> open-dir: p5
     7  <local fs> open-dir: p5
     8  <local fs> create: p5/REMOTE-OBJ-CATALOG-000001
     9  <local fs> sync: p5/REMOTE-OBJ-CATALOG-000001
    10  <local fs> create: p5/marker.remote-obj-catalog.000001.REMOTE-OBJ-CATALOG-000001
    11  <local fs> close: p5/marker.remote-obj-catalog.000001.REMOTE-OBJ-CATALOG-000001
    12  <local fs> sync: p5
    13  <local fs> sync: p5/REMOTE-OBJ-CATALOG-000001
    14  
    15  create 1 shared 1 100
    16  ----
    17  <remote> create object "d632-5-000001.sst"
    18  <remote> close writer for "d632-5-000001.sst" after 100 bytes
    19  <remote> create object "d632-5-000001.sst.ref.5.000001"
    20  <remote> close writer for "d632-5-000001.sst.ref.5.000001" after 0 bytes
    21  
    22  save-backing p5b1 1
    23  ----
    24  
    25  # This should do nothing.
    26  remove 1
    27  ----
    28  
    29  open p6 6
    30  ----
    31  <local fs> mkdir-all: p6 0755
    32  <local fs> open-dir: p6
    33  <local fs> open-dir: p6
    34  <local fs> create: p6/REMOTE-OBJ-CATALOG-000001
    35  <local fs> sync: p6/REMOTE-OBJ-CATALOG-000001
    36  <local fs> create: p6/marker.remote-obj-catalog.000001.REMOTE-OBJ-CATALOG-000001
    37  <local fs> close: p6/marker.remote-obj-catalog.000001.REMOTE-OBJ-CATALOG-000001
    38  <local fs> sync: p6
    39  <local fs> sync: p6/REMOTE-OBJ-CATALOG-000001
    40  
    41  # Attach should succeed.
    42  attach
    43  p5b1 101
    44  ----
    45  <remote> create object "d632-5-000001.sst.ref.6.000101"
    46  <remote> close writer for "d632-5-000001.sst.ref.6.000101" after 0 bytes
    47  <remote> size of object "d632-5-000001.sst.ref.5.000001": 0
    48  <local fs> sync: p6/REMOTE-OBJ-CATALOG-000001
    49  000101 -> remote://d632-5-000001.sst
    50  
    51  switch p5
    52  ----
    53  
    54  # TODO(radu): after we close the backing, the unref should happen.
    55  close-backing p5b1
    56  ----
    57  
    58  create 2 shared 2 100
    59  ----
    60  <remote> create object "1ab5-5-000002.sst"
    61  <remote> close writer for "1ab5-5-000002.sst" after 100 bytes
    62  <remote> create object "1ab5-5-000002.sst.ref.5.000002"
    63  <remote> close writer for "1ab5-5-000002.sst.ref.5.000002" after 0 bytes
    64  
    65  save-backing p5b2 2
    66  ----
    67  
    68  # Close the backing, then unref the object.
    69  close-backing p5b2
    70  ----
    71  
    72  remove 2
    73  ----
    74  <remote> delete object "1ab5-5-000002.sst.ref.5.000002"
    75  <remote> list (prefix="1ab5-5-000002.sst.ref.", delimiter="")
    76  <remote> delete object "1ab5-5-000002.sst"
    77  
    78  switch p6
    79  ----
    80  
    81  # Attach should error out because it can't find p5's ref.
    82  attach
    83  p5b2 102
    84  ----
    85  <remote> create object "1ab5-5-000002.sst.ref.6.000102"
    86  <remote> close writer for "1ab5-5-000002.sst.ref.6.000102" after 0 bytes
    87  <remote> size of object "1ab5-5-000002.sst.ref.5.000002": error: file does not exist
    88  <remote> delete object "1ab5-5-000002.sst.ref.6.000102"
    89  <remote> list (prefix="1ab5-5-000002.sst.ref.", delimiter="")
    90  <remote> delete object "1ab5-5-000002.sst"
    91  error: origin marker object "1ab5-5-000002.sst.ref.5.000002" does not exist; object probably removed from the provider which created the backing