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Improve description of tagmigration in DTR (#4599)

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Joao Fernandes 2017-09-13 15:26:23 -07:00 committed by GitHub
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datacenter/dtr/2.3/guides/admin/monitor-and-troubleshoot/troubleshoot-batch-jobs.md
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@ -36,19 +36,19 @@ so that other replicas can claim the job.
DTR has several types of jobs.
| Job | Description |
|:---------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| gc | Garbage collection job that deletes layers associated with deleted images |
| sleep | Sleep is used to test the correctness of the jobrunner. It sleeps for 60 seconds |
| false | False is used to test the correctness of the jobrunner. It runs the `false` command and immediately fails |
| tagmigration | Tag migration is used to sync tag and manifest information from the blobstore into the database. This information is used to for information in the API, UI, and also for GC |
| bloblinkmigration | bloblinkmigration is a 2.1 to 2.1 upgrade process that adds references for blobs to repositories in the database |
| license_update | License update checks for license expiration extensions if online license updates are enabled |
| scan_check | An image security scanning job. This job does not perform the actual scanning, rather it spawns `scan_check_single` jobs (one for each layer in the image). Once all of the `scan_check_single` jobs are complete, this job will terminate |
| scan_check_single | A security scanning job for a particular layer given by the `parameter: SHA256SUM`. This job breaks up the layer into components and checks each component for vulnerabilities |
| scan_check_all | A security scanning job that updates all of the currently scanned images to display the latest vulnerabilities |
| update_vuln_db | A job that is created to update DTR's vulnerability database. It uses an Internet connection to check for database updates through `https://dss-cve-updates.docker.com/` and updates the `dtr-scanningstore` container if there is a new update available |
| webhook | A job that is used to dispatch a webhook payload to a single endpoint |
| Job | Description |
|:------------------|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| gc | Garbage collection job that deletes layers associated with deleted images |
| sleep | Sleep is used to test the correctness of the jobrunner. It sleeps for 60 seconds |
| false | False is used to test the correctness of the jobrunner. It runs the `false` command and immediately fails |
| tagmigration | Tag migration is used to synchronize tag and manifest information between the DTR database and the storage backend. |
| bloblinkmigration | bloblinkmigration is a 2.1 to 2.1 upgrade process that adds references for blobs to repositories in the database |
| license_update | License update checks for license expiration extensions if online license updates are enabled |
| scan_check | An image security scanning job. This job does not perform the actual scanning, rather it spawns `scan_check_single` jobs (one for each layer in the image). Once all of the `scan_check_single` jobs are complete, this job will terminate |
| scan_check_single | A security scanning job for a particular layer given by the `parameter: SHA256SUM`. This job breaks up the layer into components and checks each component for vulnerabilities |
| scan_check_all | A security scanning job that updates all of the currently scanned images to display the latest vulnerabilities |
| update_vuln_db | A job that is created to update DTR's vulnerability database. It uses an Internet connection to check for database updates through `https://dss-cve-updates.docker.com/` and updates the `dtr-scanningstore` container if there is a new update available |
| webhook | A job that is used to dispatch a webhook payload to a single endpoint |
## Job status