Viewing Replication Schedules

The Replications Schedules page displays a row of information about each scheduled replication job. Each row also displays recent messages regarding the last time the Replication job ran.

Figure 1. Replication Schedules Table

Only one job corresponding to a replication schedule can occur at a time; if another job associated with that same replication schedule starts before the previous one has finished, the second one is canceled.

You can limit the replication jobs that are displayed by selecting filters on the left. If you do not see an expected schedule, adjust or clear the filters. Use the search box to search the list of schedules for path, database, or table names.

The Replication Schedules columns are described in the following table.
Table 1. Replication Schedules Table
Column Description
ID An internally generated ID number that identifies the schedule. Provides a convenient way to identify a schedule.

Click the ID column label to sort the replication schedule table by ID.

Name The unique name you specify when you create a schedule.
Type The type of replication scheduled, either HDFS or Hive.
Source The source cluster for the replication.
Destination The destination cluster for the replication.
Throughput Average throughput per mapper/file of all the files written. Note that throughput does not include the following information: the combined throughput of all mappers and the time taken to perform a checksum on a file after the file is written.
Progress The progress of the replication.
Last Run The date and time when the replication last ran. Displays None if the scheduled replication has not yet been run. Click the date and time link to view the Replication History page for the replication.
Displays one of the following icons:
  • - Successful. Displays the date and time of the last run replication.
  • - Failed. Displays the date and time of a failed replication.
  • - None. This scheduled replication has not yet run.
  • - Running. Displays a spinner and bar showing the progress of the replication.

Click the Last Run column label to sort the Replication Schedules table by the last run date.

Next Run The date and time when the next replication is scheduled, based on the schedule parameters specified for the schedule. Hover over the date to view additional details about the scheduled replication.

Click the Next Run column label to sort the Replication Schedules table by the next run date.

Objects Displays on the bottom line of each row, depending on the type of replication:
  • Hive - A list of tables selected for replication.
  • HDFS - A list of paths selected for replication.

For example:

Actions The following items are available from the Action button:
  • Show History - Opens the Replication History page for a replication. See .
  • Edit Configuration - Opens the Edit Replication Schedule page.
  • Dry Run - Simulates a run of the replication task but does not actually copy any files or tables. After a Dry Run, you can select Show History, which opens the Replication History page where you can view any error messages and the number and size of files or tables that would be copied in an actual replication.
  • Click Collect Diagnostic Data to open the Send Diagnostic Data screen, which allows you to collect replication-specific diagnostic data for the last 10 runs of the schedule:
    1. Select Send Diagnostic Data to Cloudera to automatically send the bundle to Cloudera Support. You can also enter a ticket number and comments when sending the bundle.
    2. Click Collect and Send Diagnostic Data to generate the bundle and open the Replications Diagnostics Command screen.
    3. When the command finishes, click Download Result Data to download a zip file containing the bundle.
  • Run Now - Runs the replication task immediately.
  • Disable | Enable - Disables or enables the replication schedule. No further replications are scheduled for disabled replication schedules.
  • Delete - Deletes the schedule. Deleting a replication schedule does not delete copied files or tables.
  • While a job is in progress, the Last Run column displays a spinner and progress bar, and each stage of the replication task is indicated in the message beneath the job's row. Click the Command Details link to view details about the execution of the command.
  • If the job is successful, the number of files copied is indicated. If there have been no changes to a file at the source since the previous job, then that file is not copied. As a result, after the initial job, only a subset of the files may actually be copied, and this is indicated in the success message.
  • If the job fails, the icon displays.
  • To view more information about a completed job, select Actions > Show History.