InetAddress.isReachable fix ETA

[Yuval Lombard]

Forgot to mention I use jdk24

On Sun, 5 Oct 2025 at 09:48, Yuval Lombard <yuval.l at securithings.com> wrote:

> Hello team,
>
> I had issues with subscribing to the net-dev, and now was able to resolve
> it, so now I am following up on this again.
>
> A bit of context to add to the query about the InetAddress.isReachable()
> issue I have posted.
>
> It seems my app underperforms when enabling InetAddress.isReachable()
> probing of multiple network devices (3-4K devices) with VT, and
> introducing a deliberate network traffic delay.
> With PT the issue seems significantly less severe
>
> On Tue, 30 Sept 2025 at 10:29, Yuval Lombard <yuval.l at securithings.com>
> wrote:
>
>> Hey team,
>>
>> Following up on this,
>>
>> Did you have the chance to look at this?
>>
>> On Thu, 25 Sept 2025 at 09:09, Yuval Lombard <yuval.l at securithings.com>
>> wrote:
>>
>>> Hey Team
>>>
>>> Is there an ETA for addressing the mentioned issue?
>>>
>>> https://bugs.openjdk.org/browse/JDK-8357160
>>>
>>>>
>>>> On 20/09/2025 15:24, Yuval Lombard wrote:
>>>> > Hello team,
>>>> >
>>>> > Is there an estimated time/jdk release for fixing the InetAddress
>>>> > isReachable issue?
>>>> >
>>>> net-dev would be a better replace to discuss this.  As I mentioned in
>>>> JDK-8357160 [1], I think it would be useful to know if it common for
>>>> deployments to have CAP_NET_RAW/equivalent or whether the TCP
>>>> implementation is more commonly used. If the TCP implementation were to
>>>> re-written in Java (not hard) then it would be "virtual thread friendly"
>>>> in the sense that waiting for SYN-ACK would release the carrier to do
>>>> other work.
>>>>
>>>> -Alan
>>>>
>>>> [1] https://bugs.openjdk.org/browse/JDK-8357160
>>>
>>>
>>>
>>> --
>>>
>>> Kind regards,
>>>
>>> *Yuval Lombard*
>>>
>>> *Staff Software Engineer*
>>>
>>> +972.50.548.0111
>>>
>>> yuval.l at securithings.com
>>>
>>> [image: logo_black.png]
>>>
>>
>>
>> --
>>
>> Kind regards,
>>
>> *Yuval Lombard*
>>
>> *Staff Software Engineer*
>>
>> +972.50.548.0111
>>
>> yuval.l at securithings.com
>>
>> [image: logo_black.png]
>>
>
>
> --
>
> Kind regards,
>
> *Yuval Lombard*
>
> *Staff Software Engineer*
>
> +972.50.548.0111
>
> yuval.l at securithings.com
>
> [image: logo_black.png]
>


-- 

Kind regards,

*Yuval Lombard*

*Staff Software Engineer*

+972.50.548.0111

yuval.l at securithings.com

[image: logo_black.png]
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