Hi tison, 
The leader lease ticket: https://issues.apache.org/jira/browse/RATIS-1864. 
Current progress: maintain lease through heartbeats 
https://issues.apache.org/jira/browse/RATIS-1866 and corresponding PR: 
https://github.com/apache/ratis/pull/898.

William

> 2023年9月16日 14:49,tison <[email protected]> 写道:
> 
> May you share the link to lease read? That sounds interesting :)
> 
> Tsz Wo Sze <[email protected]>于2023年9月16日 周六01:03写道:
> 
>> William,
>> 
>> Thanks a lot for testing 3.0.0 with IoTDB!  Sure, we can wait for the
>> patches.  Please feel free to let me know if you need help on updating
>> IoTDB to Ratis 3.0.0.
>> 
>> Tsz-Wo
>> 
>> 
>> On Thu, Aug 31, 2023 at 6:36 PM William Song <[email protected]> wrote:
>> 
>>> +1 looking forward to 3.0.0, especially pluggable metrics. I’ll start
>>> testing 3.0.0 in IoTDB.
>>> 
>>> There are some WIP patches related to lease read and snapshot, could we
>>> wait until these patches are merged?
>>> 
>>> William
>>> 
>>>> 2023年8月31日 02:49,Tsz Wo Sze <[email protected]> 写道:
>>>> 
>>>> Hi dev,
>>>> 
>>>> The master branch was set to 3.0.0-SNAPSHOT for more than a year.  How
>>>> about we roll a Ratis 3.0.0 release?
>>>> 
>>>> I recently tested Ratis 3.0.0 with Apache Ozone [1, 2].  It needs a few
>>>> changes as shown below:
>>>> - Set RaftStorage.StartupOption.RECOVER when building a RaftServer.
>>>> - Ozone uses dropwizard3 so it needs the ratis-metrics-dropwizard3
>>>> dependency.
>>>> - Ozone uses some internal ratis-metrics API.  We have to update the
>> code
>>>> to use the public API in ratis-metrics-api.
>>>> 
>>>> [1] https://issues.apache.org/jira/browse/HDDS-9192
>>>> [2] https://github.com/szetszwo/ozone/pull/6
>>>> 
>>>> Tsz-Wo
>>> 
>>> 
>> 

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