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Posted to dev@ambari.apache.org by "Varun Kapoor (JIRA)" <ji...@apache.org> on 2012/05/17 02:46:07 UTC

[jira] [Created] (AMBARI-286) Make TxnProgressWidget Immune To Re-Fetch Race Conditions

Varun Kapoor created AMBARI-286:
-----------------------------------

             Summary: Make TxnProgressWidget Immune To Re-Fetch Race Conditions
                 Key: AMBARI-286
                 URL: https://issues.apache.org/jira/browse/AMBARI-286
             Project: Ambari
          Issue Type: Bug
    Affects Versions: ambari-186
            Reporter: Varun Kapoor
            Assignee: Varun Kapoor
            Priority: Critical
             Fix For: ambari-186


There's a bunch of severe rendering problems that stem from the TxnProgressWidget periodically polling its backend data source at fixed intervals, regardless of whether the previous fetch is actually done.

Now that we have post-processors for fetchTxnProgress.php (buried deep within AMBARI-249), this has become even more severe because our post-processing script potentially triggers background jobs (that should run just once) more than once, so this needs to be fixed ASAP.

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[jira] [Updated] (AMBARI-286) Make TxnProgressWidget Immune To Re-Fetch Race Conditions

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/AMBARI-286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated AMBARI-286:
-------------------------------------------

    Fix Version/s:     (was: ambari-186)
                   0.9.0
    
> Make TxnProgressWidget Immune To Re-Fetch Race Conditions
> ---------------------------------------------------------
>
>                 Key: AMBARI-286
>                 URL: https://issues.apache.org/jira/browse/AMBARI-286
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: ambari-186
>            Reporter: Varun Kapoor
>            Assignee: Varun Kapoor
>            Priority: Critical
>             Fix For: 0.9.0
>
>         Attachments: AMBARI-286.patch
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> There's a bunch of severe rendering problems that stem from the TxnProgressWidget periodically polling its backend data source at fixed intervals, regardless of whether the previous fetch is actually done.
> Now that we have post-processors for fetchTxnProgress.php (buried deep within AMBARI-249), this has become even more severe because our post-processing script potentially triggers background jobs (that should run just once) more than once, so this needs to be fixed ASAP.

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[jira] [Updated] (AMBARI-286) Make TxnProgressWidget Immune To Re-Fetch Race Conditions

Posted by "Varun Kapoor (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/AMBARI-286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Varun Kapoor updated AMBARI-286:
--------------------------------

    Attachment: AMBARI-286.patch
    
> Make TxnProgressWidget Immune To Re-Fetch Race Conditions
> ---------------------------------------------------------
>
>                 Key: AMBARI-286
>                 URL: https://issues.apache.org/jira/browse/AMBARI-286
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: ambari-186
>            Reporter: Varun Kapoor
>            Assignee: Varun Kapoor
>            Priority: Critical
>             Fix For: ambari-186
>
>         Attachments: AMBARI-286.patch
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> There's a bunch of severe rendering problems that stem from the TxnProgressWidget periodically polling its backend data source at fixed intervals, regardless of whether the previous fetch is actually done.
> Now that we have post-processors for fetchTxnProgress.php (buried deep within AMBARI-249), this has become even more severe because our post-processing script potentially triggers background jobs (that should run just once) more than once, so this needs to be fixed ASAP.

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[jira] [Updated] (AMBARI-286) Make TxnProgressWidget Immune To Re-Fetch Race Conditions

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/AMBARI-286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated AMBARI-286:
-------------------------------------------

    Affects Version/s:     (was: ambari-186)
                       0.9.0
    
> Make TxnProgressWidget Immune To Re-Fetch Race Conditions
> ---------------------------------------------------------
>
>                 Key: AMBARI-286
>                 URL: https://issues.apache.org/jira/browse/AMBARI-286
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 0.9.0
>            Reporter: Varun Kapoor
>            Assignee: Varun Kapoor
>            Priority: Critical
>             Fix For: 0.9.0
>
>         Attachments: AMBARI-286.patch
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> There's a bunch of severe rendering problems that stem from the TxnProgressWidget periodically polling its backend data source at fixed intervals, regardless of whether the previous fetch is actually done.
> Now that we have post-processors for fetchTxnProgress.php (buried deep within AMBARI-249), this has become even more severe because our post-processing script potentially triggers background jobs (that should run just once) more than once, so this needs to be fixed ASAP.

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