SHOW JOBS

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The SHOW JOBS statement lists all of the types of long-running tasks your cluster has performed in the last 12 hours, including:

Details for enterprise changefeeds, including the sink URI and full table name, are not displayed on running the SHOW JOBS statement. For details about enterprise changefeeds, including the sink URI and the full table name, use SHOW CHANGEFEED JOBS.

To block a call to SHOW JOBS that returns after all specified job ID(s) have a terminal state, use SHOW JOBS WHEN COMPLETE. The statement will return a row per job ID, which provides details of the job execution. Note that while this statement is blocking, it will time out after 24 hours.

Considerations

  • The SHOW JOBS statement shows only long-running tasks.
  • For jobs older than 12 hours, query the crdb_internal.jobs table.
  • Jobs are deleted after 14 days. This interval can be changed via the jobs.retention_time cluster setting.
  • While the SHOW JOBS WHEN COMPLETE statement is blocking, it will time out after 24 hours.
  • Garbage collection jobs are created for dropped tables and dropped indexes, and will execute after the GC TTL has elapsed (default is 25 hours). These jobs cannot be canceled.
  • CockroachDB automatically retries jobs that fail due to retry errors or job coordination failures, with exponential backoff. The jobs.registry.retry.initial_delay cluster setting sets the initial delay between retries and jobs.registry.retry.max_delay sets the maximum delay.

Required privileges

By default, only the root user can execute SHOW JOBS.

Synopsis

SHOW AUTOMATIC JOBS JOBS WHEN COMPLETE select_stmt for_schedules_clause CHANGEFEED JOBS select_stmt JOB job_id JOB WHEN COMPLETE job_id

Parameters

Parameter Description
SHOW AUTOMATIC JOBS Show jobs performed for internal CockroachDB operations. See Show automatic jobs.
SHOW JOBS WHEN COMPLETE Block SHOW JOB until the provided job ID reaches a terminal state. For an example, see Show job when complete.
select_stmt A selection query that specifies the job_id(s) to view.
job_id The ID of the job to view.
for_schedules_clause The schedule you want to view jobs for. You can view jobs for a specific schedule (FOR SCHEDULE id) or view jobs for multiple schedules by nesting a SELECT clause in the statement (FOR SCHEDULES <select_clause>). For an example, see Show jobs for a schedule.
SHOW CHANGEFEED JOBS Show details about enterprise changefeeds, including the sink URI and the full table name. For an example, see Show changefeed jobs.

Response

The output of SHOW JOBS lists ongoing jobs first, then completed jobs within the last 12 hours. The list of ongoing jobs is sorted by starting time, whereas the list of completed jobs is sorted by finished time.

The following fields are returned for each job:

Field Description
job_id A unique ID to identify each job. This value is used if you want to control jobs (i.e., pause, resume, or cancel it).
job_type The type of job. Possible values: SCHEMA CHANGE, BACKUP, RESTORE, IMPORT, and CREATE STATS.

For job types of automatic jobs, see Show automatic jobs.
description The statement that started the job, or a textual description of the job.
statement When description is a textual description of the job, the statement that started the job is returned in this column. Currently, this field is populated only for the automatic table statistics jobs.
user_name The name of the user who started the job.
status The job's current state. Possible values: pending, running, paused, failed, retrying, reverting, succeeded, and canceled.
running_status The job's detailed running status, which provides visibility into the progress of the dropping or truncating of tables (i.e., DROP TABLE, DROP DATABASE, or TRUNCATE). For dropping or truncating jobs, the detailed running status is determined by the status of the table at the earliest stage of the schema change. The job is completed when the GC TTL expires and both the table data and ID is deleted for each of the tables involved. Possible values: waiting for MVCC GC, deleting data, waiting for GC TTL, waiting in DELETE-ONLY, waiting in DELETE-AND-WRITE_ONLY, waiting in MERGING, populating schema, validating schema, or NULL (when the status cannot be determined).

For the SHOW AUTOMATIC JOBS statement, the value of this field is NULL.
created The TIMESTAMP when the job was created.
started The TIMESTAMP when the job began running first.
finished The TIMESTAMP when the job was succeeded, failed, or canceled.
modified The TIMESTAMP when the job had anything modified.
fraction_completed The fraction (between 0.00 and 1.00) of the job that's been completed.
error If the job failed, the error generated by the failure.
coordinator_id The ID of the node running the job.
trace_id The job's trace ID, for inflight debugging.
last_run The TIMESTAMP of the last attempted execution.
next_run The TIMESTAMP of the next attempted execution.
num_runs The number of job execution attempts.
execution_errors A list of any execution errors that the job encountered.

For details of changefeed-specific responses, see SHOW CHANGEFEED JOBS.

Examples

Show jobs

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> SHOW JOBS;
    job_id      | job_type  |               description                 |...
+---------------+-----------+-------------------------------------------+...
 27536791415282 |  RESTORE  | RESTORE db.* FROM 'azure://backup/db/tbl' |...

Filter jobs

You can filter jobs by using SHOW JOBS as the data source for a SELECT statement, and then filtering the values with the WHERE clause.

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> WITH x as (SHOW JOBS) SELECT * FROM x WHERE job_type = 'RESTORE' AND status IN ('running', 'failed') ORDER BY created DESC;
    job_id      | job_type  |              description                  |...
+---------------+-----------+-------------------------------------------+...
 27536791415282 |  RESTORE  | RESTORE db.* FROM 'azure://backup/db/tbl' |...

Show automatic jobs

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> SHOW AUTOMATIC JOBS;
    job_id           |       job_type                  |                    description                       |...
+--------------------+---------------------------------+------------------------------------------------------+...
  786475982730133505 | AUTO SPAN CONFIG RECONCILIATION | reconciling span configurations                      |...
  786483120403382274 | AUTO SQL STATS COMPACTION       | automatic SQL Stats compaction                       |...
  786476180299579393 | AUTO CREATE STATS               | Table statistics refresh for movr.public.promo_codes |...
...
(8 rows)

The job types of automatic jobs are:

  • AUTO SPAN CONFIG RECONCILIATION: A continuously running job that ensures that all declared zone configurations (ALTER … CONFIGURE ZONE …) are applied. For example, when num_replicas = 7 is set on a table, the reconciliation job listens in on those changes and then informs the underlying storage layer to maintain 7 replicas for the table.
  • AUTO SQL STATS COMPACTION: An hourly job that truncates the internal system.statement_statistics and system.transaction_statistics table row counts to the value of the sql.stats.persisted_rows.max cluster setting. Both tables contribute to the crdb_internal.statement_statistics and crdb_internal.transaction_statistics tables, respectively.
  • AUTO CREATE STATS: Creates and updates table statistics.

Filter automatic jobs

You can filter jobs by using SHOW AUTOMATIC JOBS as the data source for a SELECT statement, and then filtering the values with the WHERE clause.

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> WITH x AS (SHOW AUTOMATIC JOBS) SELECT * FROM x WHERE status = ('succeeded') ORDER BY created DESC;
        job_id       |         job_type          |                             description                             |                                         statement                                          | user_name |  status   | ...
  786483120403382274 | AUTO SQL STATS COMPACTION | automatic SQL Stats compaction                                      |                                                                                            | node      | succeeded | ...
  786476180299579393 | AUTO CREATE STATS         | Table statistics refresh for movr.public.promo_codes                | CREATE STATISTICS __auto__ FROM [110] WITH OPTIONS THROTTLING 0.9 AS OF SYSTEM TIME '-30s' | root      | succeeded | ...
...
(7 rows)

Show changefeed jobs

You can display specific fields relating to changefeed jobs by running SHOW CHANGEFEED JOBS. These fields include:

  • high_water_timestamp: Guarantees all changes before or at this time have been emitted.
  • sink_uri: The destination URI of the configured sink for a changefeed.
  • full_table_names: The full name resolution for a table. For example, defaultdb.public.mytable refers to the defaultdb database, the public schema, and the table mytable table.
  • topics: The topic name to which Kafka and Google Cloud Pub/Sub changefeed messages will emit. If you start a changefeed with the split_column_families option targeting a table with multiple column families, the SHOW CHANGEFEED JOBS output will show the topic name with a family placeholder. For example, topic.{family}.
  • format: The format of the changefeed messages, e.g., json, avro.
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> SHOW CHANGEFEED JOBS;
    job_id             |                                                                                   description                                                                  | ...
+----------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------+ ...
  685724608744325121   | CREATE CHANGEFEED FOR TABLE mytable INTO 'kafka://localhost:9092' WITH confluent_schema_registry = 'http://localhost:8081', format = 'avro', resolved, updated | ...
  685723987509116929   | CREATE CHANGEFEED FOR TABLE mytable INTO 'kafka://localhost:9092' WITH confluent_schema_registry = 'http://localhost:8081', format = 'avro', resolved, updated | ...
(2 rows)

Changefeed jobs can be paused, resumed, altered, or canceled.

Filter changefeed jobs

You can filter jobs by using SHOW CHANGEFEED JOBS as the data source for a SELECT statement, and then filtering the values with a WHERE clause. For example, you can filter by the status of changefeed jobs:

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WITH x AS (SHOW CHANGEFEED JOBS) SELECT * FROM x WHERE status = ('paused');
    job_id           |                                                              description         | ...
+--------------------+----------------------------------------------------------------------------------+ ...
  685723987509116929 | CREATE CHANGEFEED FOR TABLE mytable INTO 'kafka://localhost:9092' WITH confluent | ...
(1 row)

Show schema changes

You can show just schema change jobs by using SHOW JOBS as the data source for a SELECT statement, and then filtering the job_type value with the WHERE clause:

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> WITH x AS (SHOW JOBS) SELECT * FROM x WHERE job_type = 'SCHEMA CHANGE';
    job_id       | job_type        |              description                           |...
+----------------+-----------------+----------------------------------------------------+...
  27536791415282 |  SCHEMA CHANGE  | ALTER TABLE test.public.foo ADD COLUMN bar VARCHAR |...

Scheme change jobs can be paused, resumed, and canceled.

Show job when complete

To block SHOW JOB until the provided job ID reaches a terminal state, use SHOW JOB WHEN COMPLETE:

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> SHOW JOB WHEN COMPLETE 27536791415282;
    job_id       | job_type  |               description                 |...
+----------------+-----------+-------------------------------------------+...
  27536791415282 |  RESTORE  | RESTORE db.* FROM 'azure://backup/db/tbl' |...

Show jobs for a schedule

To view jobs for a specific backup schedule, use the schedule's id:

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> SHOW JOBS FOR SCHEDULE 590204387299262465;
    job_id           | job_type |              description                                          |...
+--------------------+----------+-------------------------------------------------------------------+...
  590205481558802434 | BACKUP   | BACKUP INTO '/2020/09/15-161444.99' IN 's3://test/scheduled-backup| ...
(1 row)

You can also view multiple schedules by nesting a SELECT clause that retrieves id(s) inside the SHOW JOBS statement:

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> SHOW JOBS FOR SCHEDULES WITH x AS (SHOW SCHEDULES) SELECT id FROM x WHERE label = 'test_schedule';
    job_id           | job_type  |              description                  |...
+--------------------+-----------+-------------------------------------------+...
  590204496007299074 | BACKUP    | BACKUP INTO '/2020/09/15-161444.99' IN'   |...
(2 rows)

See also


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