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This article mainly explains "the method of Jenkins timing construction and polling SCM". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the method of Jenkins timing construction and polling SCM".

1. Build at different times:

The scheduled build task is performed regardless of whether the code on the remote code branch (Svn/Git) is updated or not

Polling SCM:

Whenever there are any updates on the remote code branch (Svn/Git), the build task is performed.

2. Format: * *

The first * indicates minute minute: value 0-59, which minute to execute

The second * indicates hourly hour: value 0-23, which hour to execute

The third * indicates the date day: value is 1-31, which day will be executed.

The fourth * indicates month month: value is 1-12, which month will be executed.

The fifth * indicates the week week: value 0-7, which day of the week to execute

3. Example # build an OR every half hour to check the remote code branch every half hour. If there is an update, build an OR to check the remote code branch every two hours. If there is an update, build the remote code branch every two hours. If there are updates, build the remote code branch at two o'clock every morning. At 9: 00 a.m., H9 * * 1-pound 1mins will be executed every week. Starting at 8:30, until 19:30, the construction will be conducted every 4 hours and 30 minutes.

Whether to use timed build or poll SCM in the process depends on specific scenarios. The following two commonly used scenarios are listed for reference.

# build regularly at 8: 00 every day, regardless of whether the code is updated at 8 * # weekdays, and check every 30 minutes from 9 to 20:00. If there are code updates, build a scheduled build: h 8 * polling SCM:H/30 9-20 * * 1-5

After the configuration is completed, you can click apply to check whether the configuration is correct (illegal configuration will be prompted) or go to https://crontab.guru for test and verification.

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