Investigate and fix the failure in test_restart_sg_creating_attachments

Error MessageException: ('Error while replicating', 'CouchbaseLiteException{CouchbaseLite, 5022: java.net.ConnectException: Failed to connect to /10.100.150.61:4984')Stacktraceparams_from_base_test_setup = {'base_url': 'http://10.100.150.138:8080', 'cbl_ce': False, 'cbl_db': 'cbl-test1708151226.4070559', 'cbl_log_decoder_build': None, ...}

    @pytest.mark.channels

    @pytest.mark.syncgateway

    @pytest.mark.attachment_cleanup

    def test_restart_sg_creating_attachments(params_from_base_test_setup):

        """

        https://docs.google.com/spreadsheets/d/1RrrIcIZN7MgLDlNzGWfUHo2NTYrx1Jr55SBNeCdDUQs/edit#gid=0

        1.Have SG and CBL up and running

        2. Create docs with attachments

        3. Restart SG while documents are created

        4. verify documents are created

        5. Restart the sg while Deleting the docs

        7. verify all the attachments are deleted in the bucket

        """

        sync_gateway_version = params_from_base_test_setup["sync_gateway_version"]

        if sync_gateway_version < "3.0.0":

            pytest.skip('This test cannot run with sg version below 3.0.0')

        # This test should only run when using xattr

        sg_db = "db"

        sg_url = params_from_base_test_setup["sg_url"]

        sg_admin_url = params_from_base_test_setup["sg_admin_url"]

        cluster_config = params_from_base_test_setup["cluster_config"]

        sg_blip_url = params_from_base_test_setup["target_url"]

        base_url = params_from_base_test_setup["base_url"]

        cbl_db = params_from_base_test_setup["source_db"]

        need_sgw_admin_auth = params_from_base_test_setup["need_sgw_admin_auth"]

        auth = need_sgw_admin_auth and (RBAC_FULL_ADMIN['user'], RBAC_FULL_ADMIN['pwd']) or None

        channels = ["attachment-10"]

        db = Database(base_url)

        sg_client = MobileRestClient()

        # 1. Have CBL and SG up and running

        sg_config = params_from_base_test_setup["sg_config"]

        c = cluster.Cluster(config=cluster_config)

        c.reset(sg_config_path=sg_config)

        authenticator = Authenticator(base_url)

        # 2. Create docs with attachment on CBL

        db.create_bulk_docs(50, "attachment-110", db=cbl_db, channels=channels,

                            attachments_generator=attachment.generate_5_png_100_100)

        # 3. Replicate the docs

        sg_client.create_user(sg_admin_url, sg_db, "auto10", password="password", channels=channels, auth=auth)

        cookie, session_id = sg_client.create_session(sg_admin_url, sg_db, "auto10", auth=auth)

        session = cookie, session_id

        replicator = Replication(base_url)

        replicator_authenticator = authenticator.authentication(session_id, cookie, authentication_type="session")

        repl_config = replicator.configure(cbl_db, sg_blip_url, continuous=True, channels=channels,

                                           replication_type="push-pull",

                                           replicator_authenticator=replicator_authenticator)

        repl = replicator.create(repl_config)

        replicator.start(repl)

        status = c.sync_gateways[0].restart(config=sg_config, cluster_config=cluster_config)

        log_info("Restarting sg ....")

        assert status == 0, "Sync_gateway did not start"

        time.sleep(19)

>       replicator.wait_until_replicator_idle(repl)