[ACCUMULO-1481] Root tablet in its own table

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: client, master, tserver
• Assignee: Christopher Tubbs
• Reporter: Christopher Tubbs
• Created: 01/Jun/13 00:59
• Updated: 20/Feb/14 23:04
• Resolved: 01/Nov/13 00:01

Description

This will help simplify the design of a lot of our internal code. The root tablet is really a special table, and should be treated specially.

Issue Links

• incorporates: ACCUMULO-335 Can't batchscan over the !METADATA table
• is duplicated by: ACCUMULO-1827 Broken Hadoop1 compatibility
• is related to: ACCUMULO-1998 Encrypted WALogs seem to be excessively buffering
• is related to: ACCUMULO-2012 Cloning the metadata table fails with faulty error
• relates to: ACCUMULO-1143 unload of METADATA default_tablet with merging minor compactions can lockup
• relates to: ACCUMULO-1651 GC removed WAL that master wasn't done with
• supercedes: ACCUMULO-1308 MakeDeleteEntries.call should only add entries if there are no !METADATA table references

Sub-Tasks

• Clean up Constants: Resolved
• Provide upgrade path to two system metadata tables: Resolved
• Remove special characters from path names of metadata tables: Resolved
• Update CheckForMetadataProblems to check root table: Resolved