[jira] [Commented] (IGNITE-12238) RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
[
https://issues.apache.org/jira/browse/IGNITE-12238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16941097#comment-16941097
]
Andrey N. Gura commented on IGNITE-12238:
-
MErged to master branch
> RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
> ---
>
> Key: IGNITE-12238
> URL: https://issues.apache.org/jira/browse/IGNITE-12238
> Project: Ignite
> Issue Type: Bug
>Reporter: Andrey N. Gura
>Assignee: Andrey N. Gura
>Priority: Major
> Fix For: 2.8
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> {{RobinHoodBackwardShiftHashMap}} has bug that can be reproduced only on big
> endinan architectures. In order to reproduce the problem run the following
> tests:
> * {{RobinHoodBackwardShiftHashMapTest.testCollisionOnRemove}}
> * {{testRandomOpsPutRemove}}
> The problem is {{setIdealBucket()}} method writes {{long}} value to the
> offheap memory, while {{getIdealBucket()}} reads {{int}} value. For little
> endian architectures it works because meaningful 4 bytes will written first
> to the memory and leading zero bytes will be rewriteen by the next operation.
> On big endian architecture always 4 zero bytes will be written to the memory.
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[jira] [Commented] (IGNITE-12238) RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
[
https://issues.apache.org/jira/browse/IGNITE-12238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16941091#comment-16941091
]
Ignite TC Bot commented on IGNITE-12238:
{panel:title=Branch: [pull/6921/head] Base: [master] : No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity *-- Run :: All*
Results|https://ci.ignite.apache.org/viewLog.html?buildId=4641839buildTypeId=IgniteTests24Java8_RunAll]
> RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
> ---
>
> Key: IGNITE-12238
> URL: https://issues.apache.org/jira/browse/IGNITE-12238
> Project: Ignite
> Issue Type: Bug
>Reporter: Andrey N. Gura
>Assignee: Andrey N. Gura
>Priority: Major
> Fix For: 2.8
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> {{RobinHoodBackwardShiftHashMap}} has bug that can be reproduced only on big
> endinan architectures. In order to reproduce the problem run the following
> tests:
> * {{RobinHoodBackwardShiftHashMapTest.testCollisionOnRemove}}
> * {{testRandomOpsPutRemove}}
> The problem is {{setIdealBucket()}} method writes {{long}} value to the
> offheap memory, while {{getIdealBucket()}} reads {{int}} value. For little
> endian architectures it works because meaningful 4 bytes will written first
> to the memory and leading zero bytes will be rewriteen by the next operation.
> On big endian architecture always 4 zero bytes will be written to the memory.
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[jira] [Commented] (IGNITE-12238) RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
[
https://issues.apache.org/jira/browse/IGNITE-12238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16941077#comment-16941077
]
Alexey Goncharuk commented on IGNITE-12238:
---
Good catch! The changes look good to me.
> RobinHoodBackwardShiftHashMap works incorrectly on big endian architectures
> ---
>
> Key: IGNITE-12238
> URL: https://issues.apache.org/jira/browse/IGNITE-12238
> Project: Ignite
> Issue Type: Bug
>Reporter: Andrey N. Gura
>Assignee: Andrey N. Gura
>Priority: Major
> Fix For: 2.8
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> {{RobinHoodBackwardShiftHashMap}} has bug that can be reproduced only on big
> endinan architectures. In order to reproduce the problem run the following
> tests:
> * {{RobinHoodBackwardShiftHashMapTest.testCollisionOnRemove}}
> * {{testRandomOpsPutRemove}}
> The problem is {{setIdealBucket()}} method writes {{long}} value to the
> offheap memory, while {{getIdealBucket()}} reads {{int}} value. For little
> endian architectures it works because meaningful 4 bytes will written first
> to the memory and leading zero bytes will be rewriteen by the next operation.
> On big endian architecture always 4 zero bytes will be written to the memory.
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