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From "Sathwik Bantwal Premakumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ODE-1066) Unstable work of compensation activity
Date Mon, 29 May 2017 11:10:04 GMT

     [ https://issues.apache.org/jira/browse/ODE-1066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sathwik Bantwal Premakumar updated ODE-1066:
--------------------------------------------
    Attachment: FlightReservationProcess-parallel-scopes.zip

Igor,
Kindly find the attached FlightReservationProcess-parallel-scopes.zip which has a parallel
execution of the compensating scopes.

I don't have a ready system to test at the moment. Can you please verify your  patch for the
issue 1)

Also, the compensation  should be in the reverse order of execution of the scopes.

Default execution of CH in case of original FlightReservationProcess

If scopes execute in this order
ReserveCarScope
ReserveHotelScope
ReserveAbstractScope

Then, CH should be executed in this order
ReserveAbstractCompensation
ReserveHotelCompensation
ReserveCarCompensation

When consurrent execution of scopes as in FlightReservationProcess-parallel-scopes.zip the
order doesn't matter.

thanks,
sathwik

> Unstable work of compensation activity
> --------------------------------------
>
>                 Key: ODE-1066
>                 URL: https://issues.apache.org/jira/browse/ODE-1066
>             Project: ODE
>          Issue Type: Bug
>          Components: BPEL Runtime
>    Affects Versions: 1.3.6
>         Environment: Win7x64, Java 1.8.0_111, Tomcat 7.0.73
>            Reporter: Vitaliy Tkachenko
>         Attachments: FlightReservationProcess-parallel-scopes.zip, FlightReservationProcess.zip,
ODE-1066-CompensateGenerator.patch, ODE-1066-CompensationHandler.patch
>
>
> Compensation doesn't work appropriately, there is no guarantee that it will be processed
on execution. It doesn't matter which BPEL version is used either 1.1 or 2.0 and which method
is used to provide the compensation (either "compensate" or "compensateScope").
> If there are several scopes to compensate the most big chance to work out its compensation
handler has the last scope - it fails rarely but scopes defined prior to the last scope have
much bigger chances to fail. When compensation fails nothing is seen in the log, it just doesn't
work.
> Attaching the FlightReservationProcess application to reproduce the bug.
> Specify "all" in the input to execute compensation for all scopes, call it many times
and check how scopes are compensated. Each result 4, 5, 6 must contain "1" if the corresponding
scope "car", "hotel" , "asbstract" has been compensated. But in reality the most big probability
"abstract" scope has to include "1", it fails having the "0" pretty rarely. But other scopes
"car" and "hotel" fail oftenly, only in rare cases they contain "1" as being compensated.
You can also play including "car", "hotel", "abs" instead of all to  compensate only specified
scopes. E.g. use "car hotel" in the input to compensate these 2 scopes only.



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