33b4337a0c
Add operation guide to integrate with Aodh. Story: 2001577 Task: 19656 Change-Id: I728a3d513e6c7dce5cae5b1cd600135d5451692f
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1.8 KiB
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48 lines
1.8 KiB
ReStructuredText
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Copyright 2017 Catalyst IT Ltd
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All Rights Reserved.
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not use this file except in compliance with the License. You may obtain
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a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations
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under the License.
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Qinling Features
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================
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This section does not intend to give you an exhaustive feature list of Qinling,
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but some features which make Qinling userful, powerful, scalable and highly
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available.
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Auto Scaling
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~~~~~~~~~~~~
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With Qinling, the function invocation can be automatically scaled up and down
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to meet the needs of your function. It's not necessary to monitor usage by
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yourself, Qinling can scale up new workers if traffic ticks up, and scale
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back down when it drops.
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To handle any burst in traffic, Qinling will immediately increase the workers
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concurrently executing functions by a predetermined amount. After the increased
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load is handled successfully, the workers will be released in a predefined
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expiration time.
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Webhook
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~~~~~~~
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Webhooks are a low-effort way to invoke the functions in Qinling. They do
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not require a bot user or authentication to use.
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Sync/Async Function Executions
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Qinling allows the functions to be executed either synchronously or
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asynchronously. For synchronous functions, the caller will be blocked to wait
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for the responses. Asynchronous functions will be executed at the same time
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point and the responses will be returned to the caller immediately, the caller
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could check the result later on. |