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Posted to user@ratis.apache.org by ka yuu <de...@gmail.com> on 2024/09/27 04:11:41 UTC

Zero-copy

Hi, ratis community!


Are there any further discoveries or solutions to the zero-copy
ReferenceCount leak problem?
I hope I can join in and troubleshoot this problem together.

Re: Zero-copy

Posted by ka yuu <de...@gmail.com>.
Sze, Thanks for your reply !

I see. I'll discussion on the dev@ mailing list

Re: Zero-copy

Posted by Tsz Wo Sze <sz...@gmail.com>.
BTW, all the zero-copy problems are only in the master branch.  The
zero-copy code is not in any official releases, including the recent Ratis
3.1.1 release.  The zero-copy feature is still under development.

This is user@ mailing list.  To avoid confusion, let's continue the
discussion on the dev@ mailing list or on the JIRAs.

Tsz-Wo

On Thu, Sep 26, 2024 at 10:05 PM Tsz Wo Sze <sz...@gmail.com> wrote:

> Hi,
>
> Recently, we kept seeing different kinds of test failures and filed
> - RATIS-2164 <https://issues.apache.org/jira/browse/RATIS-2164>: LeakDetector
> has a race condition
> - RATIS-2159 <https://issues.apache.org/jira/browse/RATIS-2159>:
> TestRaftWithSimulatedRpc could "fail to retain".
>
> Earlier, we also had
> - RATIS-2127 <https://issues.apache.org/jira/browse/RATIS-2127>:
> TestRetryCacheWithGrpc may fail with object already completely released.
> - RATIS-2046 <https://issues.apache.org/jira/browse/RATIS-2046>: Test
> failure because SimpleStateMachine4Testing is not closed properly
>
> Note that the first two issues are not related to gRPC.  We probably
> should start with RATIS-2164
> <https://issues.apache.org/jira/browse/RATIS-2164> since it may be able
> to fix the other test failures.
>
> Thanks a lot for helping out!
>
> Tsz-Wo
>
>
> On Thu, Sep 26, 2024 at 9:12 PM ka yuu <de...@gmail.com> wrote:
>
>> Hi, ratis community!
>>
>>
>> Are there any further discoveries or solutions to the zero-copy
>> ReferenceCount leak problem?
>> I hope I can join in and troubleshoot this problem together.
>>
>

Re: Zero-copy

Posted by Tsz Wo Sze <sz...@gmail.com>.
Hi,

Recently, we kept seeing different kinds of test failures and filed
- RATIS-2164 <https://issues.apache.org/jira/browse/RATIS-2164>: LeakDetector
has a race condition
- RATIS-2159 <https://issues.apache.org/jira/browse/RATIS-2159>:
TestRaftWithSimulatedRpc could "fail to retain".

Earlier, we also had
- RATIS-2127 <https://issues.apache.org/jira/browse/RATIS-2127>:
TestRetryCacheWithGrpc may fail with object already completely released.
- RATIS-2046 <https://issues.apache.org/jira/browse/RATIS-2046>: Test
failure because SimpleStateMachine4Testing is not closed properly

Note that the first two issues are not related to gRPC.  We probably should
start with RATIS-2164 <https://issues.apache.org/jira/browse/RATIS-2164> since
it may be able to fix the other test failures.

Thanks a lot for helping out!

Tsz-Wo


On Thu, Sep 26, 2024 at 9:12 PM ka yuu <de...@gmail.com> wrote:

> Hi, ratis community!
>
>
> Are there any further discoveries or solutions to the zero-copy
> ReferenceCount leak problem?
> I hope I can join in and troubleshoot this problem together.
>