Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
Traceback (most recent call last):
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 142, in <module>
    main(sys.argv[1:])
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 116, in main
    mirrors = get_mirrors(db_dir, db_files)
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 66, in get_mirrors
    mirror_filename = get_mirror_file(db_dir, f'table:{filename}')
  File "/srv/testy/wiredtiger/bench/workgen/validate_mirror_tables.py", line 87, in get_mirror_file
    metadata = c[filename]
  File "/srv/testy/wiredtiger/build/lang/python/wiredtiger/swig_wiredtiger.py", line 328, in __getitem__
    raise KeyError
KeyError
 KeyError