The framework has a unique identifier for each instance by combining a start date(ts) and an instance ID but we observed that eucalyptus could generate a different start date for a same instance which makes the framework have different identifiers for a same instance record.
For example, the framework will have encoded text like 'ef449f9305a7ea58d03b761b9343628d' for the instance of i-467408A1 (instance id) and 2011-11-06 10:46:39 (start date; ts). Eucalyptus could record a different start date for the instance, for example '2011-11-06 10:46:40'. The framework will identify they are different instances because of the different start date, one second difference. Finally, the framework accidentally has duplicate records for the instance.
I propose that the framework will create a unique identifier by mixing a start date without time value (only including year, month and day value) and an instance Id in order to avoid generating duplicated records.
The captured error is here.
mysql> select * from instance where instanceId in ('i-467408A1');
| ef449f9305a7ea58d03b761b9343628d | i-467408A1 | 2011-11-06 10:46:39 | refresh_instances | ...
| 0d9a6086d0d87b22e83ec823072071ea | i-467408A1 | 2011-11-06 10:46:40 | refresh_instances |
...
The framework has a unique identifier for each instance by combining a start date(ts) and an instance ID but we observed that eucalyptus could generate a different start date for a same instance which makes the framework have different identifiers for a same instance record.
For example, the framework will have encoded text like 'ef449f9305a7ea58d03b761b9343628d' for the instance of i-467408A1 (instance id) and 2011-11-06 10:46:39 (start date; ts). Eucalyptus could record a different start date for the instance, for example '2011-11-06 10:46:40'. The framework will identify they are different instances because of the different start date, one second difference. Finally, the framework accidentally has duplicate records for the instance.
I propose that the framework will create a unique identifier by mixing a start date without time value (only including year, month and day value) and an instance Id in order to avoid generating duplicated records.
The captured error is here. mysql> select * from instance where instanceId in ('i-467408A1'); | ef449f9305a7ea58d03b761b9343628d | i-467408A1 | 2011-11-06 10:46:39 | refresh_instances | ... | 0d9a6086d0d87b22e83ec823072071ea | i-467408A1 | 2011-11-06 10:46:40 | refresh_instances | ...
2 rows in set (0.22 sec)