queue.yaml

# Copyright 2012 Google Inc.  All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License.  You may obtain a copy
# of the License at: http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distrib-
# uted under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
# OR CONDITIONS OF ANY KIND, either express or implied.  See the License for
# specific language governing permissions and limitations under the License.

# Storage limit estimate:
#     10k sources * 1 task per source * 1k storage per task = 10M
#     100 WMS layers * 1k queued tiles per layer * 1k storage per task = 100M

total_storage_limit: 110M
queue:
- name: metadata
  rate: 10/s
  retry_parameters:
    # Our tasks shouldn't raise exceptions, no matter what remote servers do.
    # If a task fails, it's either a bug in our code or an App Engine problem.
    # So we don't want fast retries, but we allow a few retries just in case.
    task_retry_limit: 6
    task_age_limit: 6h
    min_backoff_seconds: 3600
    max_backoff_seconds: 3600
- name: servers
  rate: 5/s
- name: tiles
  mode: pull