Esempio n. 1
0
def test_client_failure_isolate_one_datanode():
    """
    In this test, one of the datanodes is isolated from all other nodes.
    Expectation :
    Write should pass.
    Keys written before partition created can be read.
    """
    test_key_name = "testkey2"
    ClusterUtils.put_key(FILE,
                         TEST_BUCKET_NAME,
                         TEST_VOLUME_NAME,
                         "/etc/passwd",
                         key_name=test_key_name,
                         replication_factor='THREE')
    first_set = [OM[0], SCM[0], DATANODES[0], DATANODES[1], CLIENT[0]]
    second_set = [DATANODES[2]]
    Blockade.blockade_create_partition(first_set, second_set)
    Blockade.blockade_status()
    exit_code, output = \
        ClusterUtils.run_freon(FILE, 1, 1, 1, 10240, "RATIS", "THREE")
    assert re.search("3 way commit failed", output) is not None
    assert re.search("Status: Success", output) is not None
    ClusterUtils.get_key(FILE, TEST_BUCKET_NAME, TEST_VOLUME_NAME,
                         test_key_name, "/tmp/")
    key_checksum = ClusterUtils.find_checksum(FILE, "/tmp/%s" % test_key_name)

    assert key_checksum == ORIG_CHECKSUM
Esempio n. 2
0
def test_client_failure_isolate_two_datanodes():
    """
    In this test, all datanodes are isolated from each other.
    two of the datanodes cannot communicate with any other node in the cluster.
    Expectation :
    Write should fail.
    Keys written before parition created can be read.
    """
    test_key_name = "testkey1"
    ClusterUtils.put_key(FILE,
                         TEST_BUCKET_NAME,
                         TEST_VOLUME_NAME,
                         "/etc/passwd",
                         key_name=test_key_name,
                         replication_factor='THREE')
    first_set = [OM[0], SCM[0], DATANODES[0], CLIENT[0]]
    second_set = [DATANODES[1]]
    third_set = [DATANODES[2]]
    Blockade.blockade_create_partition(first_set, second_set, third_set)
    Blockade.blockade_status()
    exit_code, output = \
        ClusterUtils.run_freon(FILE, 1, 1, 1, 10240, "RATIS", "THREE")
    assert re.search("Status: Failed", output) is not None
    ClusterUtils.get_key(FILE, TEST_BUCKET_NAME, TEST_VOLUME_NAME,
                         test_key_name, "/tmp/")
    key_checksum = ClusterUtils.find_checksum(FILE, "/tmp/%s" % test_key_name)

    assert key_checksum == ORIG_CHECKSUM