CASSANDRA_KEYSPACE The keyspace in which to store the results. e.g. "tasks_keyspace". CASSANDRA_COLUMN_FAMILY The column family in which to store the results. eg "tasks" CASSANDRA_READ_CONSISTENCY The read consistency for a task as a wide column, instead of only the last one. To use this mode, you need to configure your ColumnFamily to use the TimeUUID type as a comparator: create column family task_results with comparator configuration CASSANDRA_SERVERS = ["localhost:9160"] CASSANDRA_KEYSPACE = "celery" CASSANDRA_COLUMN_FAMILY = "task_results" CASSANDRA_READ_CONSISTENCY = "ONE" CASSANDRA_WRITE_CONSISTENCY = "ONE" CASSANDRA_DETAILED_MODE

Contents Celery Documentation, Release 3.1.25 Results Multiple products in the Amazon Web Services family could be a good candidate to store or publish results with, but there is no such result backend included g.: CASSANDRA_KEYSPACE = 'tasks_keyspace' CASSANDRA_COLUMN_FAMILY The column family in which to store the results. e.g.: CASSANDRA_COLUMN_FAMILY = 'tasks' CASSANDRA_READ_CONSISTENCY The read consistency for a task as a wide column, instead of only the last one. To use this mode, you need to configure your ColumnFamily to use the TimeUUID type as a comparator: create column family task_results with comparator

events, celerymon or the Django Admin monitor. Results Multiple products in the Amazon Web Services family could be a good candidate to store or publish results with, but there is no such result backend included g.: CASSANDRA_KEYSPACE = 'tasks_keyspace' CASSANDRA_COLUMN_FAMILY The column family in which to store the results. e.g.: CASSANDRA_COLUMN_FAMILY = 'tasks' CASSANDRA_READ_CONSISTENCY The read consistency for a task as a wide column, instead of only the last one. To use this mode, you need to configure your ColumnFamily to use the TimeUUID type as a comparator: create column family task_results with comparator

CASSANDRA_KEYSPACE The keyspace in which to store the results. e.g. "tasks_keyspace". CASSANDRA_COLUMN_FAMILY The column family in which to store the results. eg "tasks" CASSANDRA_READ_CONSISTENCY The read consistency for a task as a wide column, instead of only the last one. To use this mode, you need to configure your ColumnFamily to use the TimeUUID type as a comparator: create column family task_results with comparator configuration CASSANDRA_SERVERS = ["localhost:9160"] CASSANDRA_KEYSPACE = "celery" CASSANDRA_COLUMN_FAMILY = "task_results" CASSANDRA_READ_CONSISTENCY = "ONE" CASSANDRA_WRITE_CONSISTENCY = "ONE" CASSANDRA_DETAILED_MODE

backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassandra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers List ImproperlyConfigured: if module pycassa is not available. cleanup() Delete expired metadata. column_family = None i = 63 keyspace = None process_cleanup() servers = [] © Copyright 2009-2011, Ask Solem ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL Removed Task.rate_limit_queue_type, as it was not really useful and made it

ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL Removed Task.rate_limit_queue_type, as it was not really useful and made it backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassandra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers List ImproperlyConfigured: if module pycassa is not available. cleanup() Delete expired metadata. column_family = None i = 63 keyspace = None process_cleanup() servers = [] © Copyright 2009-2011, Ask Solem

ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL Removed Task.rate_limit_queue_type, as it was not really useful and made it backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassandra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers List “hostname:port”. Raises celery.exceptions.ImproperlyConfigured: if module pycassa is not available. column_family = None keyspace = None process_cleanup() servers = [] © Copyright 2009-2011, Ask Solem & Contributors

ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL • Removed Task.rate_limit_queue_type, as it was not really useful and made backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassan- dra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers “hostname:port”. Raises celery.exceptions.ImproperlyConfigured if module pycassa is not available. column_family = None keyspace = None process_cleanup() servers = [] 11.5.26 celery.backends.tyrant celery

ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL Removed Task.rate_limit_queue_type, as it was not really useful and made it backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassandra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers List “hostname:port”. Raises celery.exceptions.ImproperlyConfigured: if module pycassa is not available. column_family = None keyspace = None process_cleanup() servers = [] © Copyright 2009-2011, Ask Solem & Contributors

backends.cassandra class celery.backends.cassandra.CassandraBackend(servers=None, keyspace=None, column_family=None, cassan- dra_options=None, **kwargs) Highly fault tolerant Cassandra backend. servers ImproperlyConfigured if module pycassa is not available. cleanup() Delete expired metadata. column_family = None i = 63 keyspace = None process_cleanup() servers = [] 10.6.23 Backend: Tokyo Tyrant ALTER TABLE celery_taskmeta MODIFY result TEXT NULL PostgreSQL: ALTER TABLE celery_taskmeta ALTER COLUMN result DROP NOT NULL • Removed Task.rate_limit_queue_type, as it was not really useful and made