Madhan Neethiraj created ARGUS-72:
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Summary: Agents receive 304 (Not Modified) though the server has
updated policies
Key: ARGUS-72
URL: https://issues.apache.org/jira/browse/ARGUS-72
Project: Argus
Issue Type: Bug
Reporter: Madhan Neethiraj
Assignee: Velmurugan Periasamy
After few grant/revoke command executions in HBase shell, I noticed that a
HBase agent didn't get the the most up-to-date policy definition. Periodic
polling gets 304 from the policy manager - hence the agent never get the
up-to-date policy.
Here are the commands executed in HBase shell:
create 'employee','personal','payroll','medical'
grant 'tom', 'RW', 'employee', 'medical'
grant 'tom', 'R', 'employee', 'medical'
On investigation, found that the update_time field on policies is earlier than
the update_time of the permissions in the policy (see the following SQL
output). Perhaps the policy's update_time was not updated for the change done
to permissions via Grant/Revoke. If this is the case, the fix would be to
ensure that update_time of all policies updated by grant/revoke is updated to
the current time.
mysql> select policy.id, policy.policy_name, policy.update_time,
perm.update_time from x_resource policy, x_perm_map perm where perm.res_id =
policy.id and perm.update_time > policy.update_time;
+----+---------------------------+---------------------+---------------------+
| id | policy_name | update_time | update_time |
+----+---------------------------+---------------------+---------------------+
| 20 | hbasedev-3-20140919204258 | 2014-09-19 20:42:58 | 2014-09-19 20:42:59 |
| 20 | hbasedev-3-20140919204258 | 2014-09-19 20:42:58 | 2014-09-19 20:42:59 |
| 20 | hbasedev-3-20140919204258 | 2014-09-19 20:42:58 | 2014-09-19 20:42:59 |
| 20 | hbasedev-3-20140919204258 | 2014-09-19 20:42:58 | 2014-09-19 20:42:59 |
| 21 | hbasedev-4-20140919204319 | 2014-09-19 20:43:19 | 2014-09-19 21:20:48 |
| 21 | hbasedev-4-20140919204319 | 2014-09-19 20:43:19 | 2014-09-19 21:20:48 |
| 21 | hbasedev-4-20140919204319 | 2014-09-19 20:43:19 | 2014-09-19 21:20:48 |
+----+---------------------------+---------------------+---------------------+
7 rows in set (0.00 sec)
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