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From "jay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CLOUDSTACK-9888) Duplicates are generated while processing usage events
Date Fri, 21 Apr 2017 04:37:04 GMT

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-9888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

jay updated CLOUDSTACK-9888:
----------------------------
    Description: 
Usage manager start processing  events from current date or last processed event.
In case of exception,  exception is suppressed in the current implementation and usage server
process rest of the events.
when usage server starts again it picks the unprocessed event (due to exception) and processes
rest of the events even though they are processed, this causes duplication of usage records.


To avoid duplication usage server should stop when ever there is an exception.


code:
 long lastSuccess = m_usageJobDao.getLastJobSuccessDateMillis();
            if (lastSuccess != 0) {
                startDateMillis = lastSuccess+1; // 1 millisecond after
            }




  was:
Usage manager start processing  events from current date or last processed event.
In case of exception,  exception is suppressed in the current implementation and usage server
process rest of the events.
when usage server starts again it picks the unprocessed event (due to exception) and processes
rest of the events even though they are processed, this causes duplication of usage records.


To avoid duplication usage server should stop when ever there is an exception.
For the same exceptions are not suppressed as part of the fix, this is fail safe fix for now.

code:
 long lastSuccess = m_usageJobDao.getLastJobSuccessDateMillis();
            if (lastSuccess != 0) {
                startDateMillis = lastSuccess+1; // 1 millisecond after
            }





> Duplicates are generated while processing usage events
> ------------------------------------------------------
>
>                 Key: CLOUDSTACK-9888
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9888
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: jay
>
> Usage manager start processing  events from current date or last processed event.
> In case of exception,  exception is suppressed in the current implementation and usage
server process rest of the events.
> when usage server starts again it picks the unprocessed event (due to exception) and
processes rest of the events even though they are processed, this causes duplication of usage
records.
> To avoid duplication usage server should stop when ever there is an exception.
> code:
>  long lastSuccess = m_usageJobDao.getLastJobSuccessDateMillis();
>             if (lastSuccess != 0) {
>                 startDateMillis = lastSuccess+1; // 1 millisecond after
>             }



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