[ https://issues.apache.org/jira/browse/ACCUMULO-802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christopher Tubbs updated ACCUMULO-802: --------------------------------------- Fix Version/s: 1.6.0 > namespaces > ---------- > > Key: ACCUMULO-802 > URL: https://issues.apache.org/jira/browse/ACCUMULO-802 > Project: Accumulo > Issue Type: Improvement > Reporter: Eric Newton > Assignee: Christopher Tubbs > Fix For: 1.6.0 > > > A large cluster is a valuable shared resource. The current permission system > and simple table naming structure does not allow for delegation of authority > and safe partitioning within this shared resource. > Use cases: > # create a namespace (like "test") and delegate the {{grant}} permission to > tables created in that namespace to a user that would manage those tables. > Presently, {{grant}} is never delegated. > # create simple "test" and "production" namespaces that are trivial for > users to switch between. For example, instead of having tables "test_index" > and "test_documents" the client would support "index" and "documents" with an > API to support switching trivially between the the different environments. > # create a set of tables in a namespace called "latest" This namespace is > re-created periodically with a map-reduce job. If code changes inadvertently > create a corrupt "latest," users can switch to the set of tables known as > "safest" In this way, users can experiment, and provide feedback on > incremental improvements, while have a safe fallback. > # two applications hosted on the same cluster that can share a table, which > has been "aliased" into their namespace. Namespace-local permissions are > ignored, but a (most likely read-only) view of the table is available. This > would be helpful for reference tables. > # quotas/priorities. Implement namespace-specific priorities and resource > allocations. It is reasonable to run namespace-specific queries and ingest > on production equipment. Large cluster resources are always limited, and > often the *only* place where near-production quality software can be run at > full scale. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira