[ACCUMULO-542] with a large root tablet, tablet servers will get stuck loading other metadata tablets

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3.5-incubating, 1.4.0
• Fix Version/s: 1.3.6, 1.4.1
• Component/s: tserver

Environment

large cluster with 390+ metadata data tablets

• Assignee: Eric C. Newton
• Reporter: Eric C. Newton
• Created: 17/Apr/12 21:25
• Updated: 27/Apr/12 11:52
• Resolved: 27/Apr/12 11:52

Description

Trying to bring up a large cluster, metadata tablets failed to load. These metadata tablets were trying to read their entries from the root tablet.

Workaround is to double the memory used for scanning the !METADATA table:

shell> config -t !METADATA -s table.scan.max.memory=2M

Nothing needs to be done: the tablet servers will recover as soon as this value is changed.