After each of these is done, I need to display the 5 output images. You can set subscriptions to run when an extract refreshes if the workbook uses a connection to a published extract.I need to run 5 algorithms parallely each takes an image as input and gives image as output. Can't set subscription frequency to "When Data Refreshes" The next evaluation of the subscription will occur at the next scheduled evaluation time. When a subscription is resumed, the alert failing count goes back to zero. Resume suspended subscriptionsĪdministrators and subscription owners can resume subscriptions in several ways:įrom My Subscription tab in Content Settingsįrom the Subscriptions tab under Tasks (Server Admins only) ![]() For information on setting this threshold, see Set up a Server for Subscriptions.īy default, administrators are not emailed when a subscription is suspended, but can opt-in to suspension emails per site through My Account Settings. Only Server administrators can configure the threshold number of subscription failures before a subscription is suspended. This sets the threshold for the number of consecutive failed subscriptions necessary before suspending the subscription. To change the threshold number of subscription failures that can occur before they are suspended, use the tsm configuration set option, backgrounder.subscription_failure_threshold_for_run_prevention. Suspended Subscriptionsīy default, a subscription is suspended after 5 consecutive subscription failures. For more information, see Configure Server Event Notification and Set Up a Site for Subscriptions. In Tableau Server, the maximum size limit for PDF attachments to subscriptions can be adjusted through the tsm configuration option subscriptions.max_attachment_size_megabytes. If the PDF attachment is missing from your subscription, it might be because the size of the PDF exceeds either the email server size limit or the maximum size limit set by server administrators. You can add a PDF attachment to your subscription if your administrator has it enabled. Keeping subscriptions enabled on all instances can result in your users receiving subscriptions that appear to be valid, but which don't work, or receiving subscriptions even though they've unsubscribed from the view or workbook. If you configured subscriptions on test or development instances of Tableau Server in addition to your in-production instance, disable subscriptions on your non-production instances. Receiving invalid or "broken" subscriptions This is why you can only subscribe to views that either don’t require credentials or have them embedded. Where live database connections are concerned, Tableau Server doesn't have the credentials, only the individual users do. To deliver the data required for the view, Tableau Server either needs embedded database credentials or data that doesn't require credentials. A subscription includes a view (or workbook), data, and a schedule. The view uses a live database connection: Views with live database connections, where you’re prompted for your database credentials when you first click the view, aren't available for subscription.To set a schedule for subscriptions, see Create or Modify a Schedule (Link opens in a new window). No subscriptions have been scheduled: If no subscriptions have been scheduled or all subscription schedules are disabled, the subscription icon will not appear.It's possible to see a view but be unable to subscribe to it. To increase the timeout threshold, use the tsm configuration set subscriptions.timeout command. ![]() You can check the Background Tasks for Non Extracts admin view to see if that's the case. However, if the background process is handling an extraordinarily large and complex dashboard, that may not be enough time. In the majority of cases, this default is plenty of time. If rendering a view goes beyond this time limit, the next view in the workbook results in a failed job due to the timeout. You may receive the above error if the embedded credentials are now out-of-date, or if the view was republished without the embedded credentials.ĭatabase temporarily down: If the view has a live database connection and the database was temporarily down when the subscription was being generated, you might receive the above error.īackground process timeout: By default, the background process that handles subscriptions has a timeout value of 30 minutes per view for the rendering of a view. Missing credentials: Some views are published with embedded credentials. ![]() If you receive a subscription with this error message, there could be several reasons: "The view snapshot in this email could not be properly rendered."
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