[ACCUMULO-3622] admin tool for reseting passwords stored in ZKAuthenticator

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Won't Fix
• Affects Version/s: 1.5.0, 1.6.0, 1.7.0
• Component/s: zookeeper
• Labels: operations supportability
• Assignee: Unassigned
• Reporter: Sean Busbey
• Created: 24/Feb/15 23:16
• Updated: 23/Apr/19 19:11
• Resolved: 23/Apr/19 19:11

Description

For clusters that rely on the ZKAuthenticator, we should add an admin tool that will do password resets outside of the shell. The tool will need to be supplied the ZK quorum, the instance-id (or name), and the instance secret.

The main use case here is should a change management failure happen that results in losing the root user password.

Currently, when users face this problem their only option is to access ZK's restricted properties directly with the instance secret (via ACCUMULO-2469) and then overwrite the contents of the node /accumulo/<instance id>/users/root with the following byte array (per ZKSecurityTool for 1.6.z):

[8 byte salt][32 byte output of SHA-256([UTF8 bytes of password][8 byte salt])]

The tool should live with the other non-public-api internal tools (server/base/src/main/java/org/apache/accumulo/server/util/).

Issue Links

• is related to: ACCUMULO-3694 Include root password recovery steps in docs