Re: Cannot test Warm Restart on Windows

[Damian Chapman]

No worries. Thanks Dormando.

On Fri, Dec 17, 2021 at 7:57 PM dormando  wrote:
>
> Hey,
>
> Sorry for the late response; I have no idea who this person is or how it's
> being built and there doesn't seem like a code patch?
>
> So you should file an issue with them if you haven't already.
>
> On Wed, 8 Dec 2021, Damian Chapman wrote:
>
> > Hi Dormando,
> > Thanks for responding to me.
> >
> > I got the Windows build from https://github.com/nono303/memcached
> >
> > Kind regards,
> > Damian.
> >
> > On Wednesday, 8 December 2021 at 19:14:11 UTC Dormando wrote:
> >   Where did you get a windows build of 1.6.12?
> > We don't officially support windows, and I hadn't heard of anyone even 
> > making recent builds of a windows
> > fork. You're best off asking whomever's doing that build.
> >
> >   On Dec 8, 2021, at 8:17 AM, Damian Chapman  
> > wrote:
> >
> >   It looks like Crtl-C is incorrect here to stop Memcached gracefully.
> >
> >
> > To stop gracefully it needs
> >
> > kill -SIGUSR1  where  is the process id 
> > of Memcached
> >
> > but SIGUSR1 is a Unix/Linux signal for inter process communication and it 
> > is not used in Windows.
> >
> > This is why my testing does not work in Windows.
> >
> > On Tuesday, 7 December 2021 at 11:35:00 UTC Damian Chapman wrote:
> >   Hi all,
> > I am trying to test Memcached warm restart on Windows.
> > I am using v1.6.12.
> >
> > I used ImDisk to create a RAM disk on Windows on the D: drive (1G)
> >
> > I start Memcached with the -e option
> >
> > C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> > D:\backup
> > [restart] no metadata save file, starting with a clean cache
> >
> > I check the file system and I can see that the backup file is created:
> >
> > D:\>dir
> >  Volume in drive D has no label.
> >  Volume Serial Number is 5881-2000
> >
> >  Directory of D:\
> >
> > 07/12/2021  11:1767,108,864 backup
> >1 File(s) 67,108,864 bytes
> >0 Dir(s) 988,749,824 bytes free
> >
> > I start a telnet session and set and get mykey
> >
> > telnet localhost 11211
> >
> > set mykey 0 300 4
> > data
> > STORED
> > get mykey
> > VALUE mykey 0 4
> > END
> >
> > I stop Memcached using Ctrl-C and restart
> >
> > C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> > D:\backup
> > [restart] no metadata save file, starting with a clean cache
> > Signal handled: Interrupt.
> >
> > C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> > D:\backup
> > [restart] no metadata save file, starting with a clean cache
> >
> > I think the issue may be here as I would not expect to restart with a clean 
> > cache. I see no
> > metadata file on the D: drive.
> >
> > When I run the telnet session again and type the get mykey command it does 
> > not find the data
> > value.
> >
> > Any help would be really appreciated.
> > Thank you in advance.
> >
> > Kind regards,
> > Damian.
> >
> >   --
> >
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> > Groups "memcached" group.
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> > send an email to
> >   memcached+...@googlegroups.com.
> >   To view this discussion on the web visit
> >   
> > https://groups.google.com/d/msgid/memcached/de3cd914-52c6-4fe2-b5eb-422407247d0an%40googlegroups.com.
> >
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> >
> >
>
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Re: Cannot test Warm Restart on Windows

[dormando]

Hey,

Sorry for the late response; I have no idea who this person is or how it's
being built and there doesn't seem like a code patch?

So you should file an issue with them if you haven't already.

On Wed, 8 Dec 2021, Damian Chapman wrote:

> Hi Dormando,
> Thanks for responding to me.
>
> I got the Windows build from https://github.com/nono303/memcached
>
> Kind regards,
> Damian.
>
> On Wednesday, 8 December 2021 at 19:14:11 UTC Dormando wrote:
>   Where did you get a windows build of 1.6.12?
> We don't officially support windows, and I hadn't heard of anyone even making 
> recent builds of a windows
> fork. You're best off asking whomever's doing that build.
>
>   On Dec 8, 2021, at 8:17 AM, Damian Chapman  wrote:
>
>   It looks like Crtl-C is incorrect here to stop Memcached gracefully.
>
>
> To stop gracefully it needs 
>
> kill -SIGUSR1  where  is the process id 
> of Memcached
>
> but SIGUSR1 is a Unix/Linux signal for inter process communication and it is 
> not used in Windows.
>
> This is why my testing does not work in Windows.
>
> On Tuesday, 7 December 2021 at 11:35:00 UTC Damian Chapman wrote:
>   Hi all,
> I am trying to test Memcached warm restart on Windows.
> I am using v1.6.12.
>
> I used ImDisk to create a RAM disk on Windows on the D: drive (1G)
>
> I start Memcached with the -e option
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e D:\backup
> [restart] no metadata save file, starting with a clean cache
>
> I check the file system and I can see that the backup file is created:
>
> D:\>dir
>  Volume in drive D has no label.
>  Volume Serial Number is 5881-2000
>
>  Directory of D:\
>
> 07/12/2021  11:17        67,108,864 backup
>                1 File(s)     67,108,864 bytes
>                0 Dir(s)     988,749,824 bytes free
>    
> I start a telnet session and set and get mykey
>
> telnet localhost 11211
>
> set mykey 0 300 4
> data
> STORED
> get mykey
> VALUE mykey 0 4
> END    
>
> I stop Memcached using Ctrl-C and restart
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e D:\backup
> [restart] no metadata save file, starting with a clean cache
> Signal handled: Interrupt.
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e D:\backup
> [restart] no metadata save file, starting with a clean cache
>
> I think the issue may be here as I would not expect to restart with a clean 
> cache. I see no
> metadata file on the D: drive.
>
> When I run the telnet session again and type the get mykey command it does 
> not find the data
> value.
>
> Any help would be really appreciated.
> Thank you in advance.
>
> Kind regards,
> Damian.
>
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>
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>   
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>
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>
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>
>

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Re: Cannot test Warm Restart on Windows

[Damian Chapman]

Hi Dormando,

Thanks for responding to me.

I got the Windows build from https://github.com/nono303/memcached

Kind regards,
Damian.

On Wednesday, 8 December 2021 at 19:14:11 UTC Dormando wrote:

> Where did you get a windows build of 1.6.12?
>
> We don't officially support windows, and I hadn't heard of anyone even 
> making recent builds of a windows fork. You're best off asking whomever's 
> doing that build.
>
> On Dec 8, 2021, at 8:17 AM, Damian Chapman  wrote:
>
> It looks like Crtl-C is incorrect here to stop Memcached gracefully.
>
>
> To stop gracefully it needs 
>
> kill -SIGUSR1  where  is the process 
> id of Memcached
>
> but SIGUSR1 is a Unix/Linux signal for inter process communication and it 
> is not used in Windows.
>
> This is why my testing does not work in Windows.
>
> On Tuesday, 7 December 2021 at 11:35:00 UTC Damian Chapman wrote:
>
>> Hi all,
>>
>> I am trying to test Memcached warm restart on Windows.
>> I am using v1.6.12.
>>
>> I used ImDisk to create a RAM disk on Windows on the D: drive (1G)
>>
>> I start Memcached with the -e option
>>
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>>
>> I check the file system and I can see that the backup file is created:
>>
>> D:\>dir
>>  Volume in drive D has no label.
>>  Volume Serial Number is 5881-2000
>>
>>  Directory of D:\
>>
>> 07/12/2021  11:1767,108,864 backup
>>1 File(s) 67,108,864 bytes
>>0 Dir(s) 988,749,824 bytes free
>>
>> I start a telnet session and set and get mykey
>>
>> telnet localhost 11211
>>
>> set mykey 0 300 4
>> data
>> STORED
>> get mykey
>> VALUE mykey 0 4
>> END
>>
>> I stop Memcached using Ctrl-C and restart
>>
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>> Signal handled: Interrupt.
>>
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>>
>> I think the issue may be here as I would not expect to restart with a 
>> clean cache. I see no
>> metadata file on the D: drive.
>>
>> When I run the telnet session again and type the get mykey command it 
>> does not find the data value.
>>
>> Any help would be really appreciated.
>> Thank you in advance.
>>
>> Kind regards,
>> Damian.
>>
>> -- 
>
> --- 
> You received this message because you are subscribed to the Google Groups 
> "memcached" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to memcached+...@googlegroups.com.
> To view this discussion on the web visit 
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>  
> 
> .
>
>

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Re: Cannot test Warm Restart on Windows

[dormando]

Where did you get a windows build of 1.6.12?

We don't officially support windows, and I hadn't heard of anyone even making 
recent builds of a windows fork. You're best off asking whomever's doing that 
build.

> On Dec 8, 2021, at 8:17 AM, Damian Chapman  wrote:
> 
> It looks like Crtl-C is incorrect here to stop Memcached gracefully.
> 
> To stop gracefully it needs 
> 
> kill -SIGUSR1  where  is the process id 
> of Memcached
> 
> but SIGUSR1 is a Unix/Linux signal for inter process communication and it is 
> not used in Windows.
> 
> This is why my testing does not work in Windows.
> 
>> On Tuesday, 7 December 2021 at 11:35:00 UTC Damian Chapman wrote:
>> Hi all,
>> 
>> I am trying to test Memcached warm restart on Windows.
>> I am using v1.6.12.
>> 
>> I used ImDisk to create a RAM disk on Windows on the D: drive (1G)
>> 
>> I start Memcached with the -e option
>> 
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>> 
>> I check the file system and I can see that the backup file is created:
>> 
>> D:\>dir
>>  Volume in drive D has no label.
>>  Volume Serial Number is 5881-2000
>> 
>>  Directory of D:\
>> 
>> 07/12/2021  11:1767,108,864 backup
>>1 File(s) 67,108,864 bytes
>>0 Dir(s) 988,749,824 bytes free
>> 
>> I start a telnet session and set and get mykey
>> 
>> telnet localhost 11211
>> 
>> set mykey 0 300 4
>> data
>> STORED
>> get mykey
>> VALUE mykey 0 4
>> END 
>> 
>> I stop Memcached using Ctrl-C and restart
>> 
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>> Signal handled: Interrupt.
>> 
>> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
>> D:\backup
>> [restart] no metadata save file, starting with a clean cache
>> 
>> I think the issue may be here as I would not expect to restart with a clean 
>> cache. I see no
>> metadata file on the D: drive.
>> 
>> When I run the telnet session again and type the get mykey command it does 
>> not find the data value.
>> 
>> Any help would be really appreciated.
>> Thank you in advance.
>> 
>> Kind regards,
>> Damian.
>> 
> 
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Re: Cannot test Warm Restart on Windows

[Damian Chapman]

It looks like Crtl-C is incorrect here to stop Memcached gracefully.

To stop gracefully it needs 

kill -SIGUSR1  where  is the process id 
of Memcached

but SIGUSR1 is a Unix/Linux signal for inter process communication and it 
is not used in Windows.

This is why my testing does not work in Windows.

On Tuesday, 7 December 2021 at 11:35:00 UTC Damian Chapman wrote:

> Hi all,
>
> I am trying to test Memcached warm restart on Windows.
> I am using v1.6.12.
>
> I used ImDisk to create a RAM disk on Windows on the D: drive (1G)
>
> I start Memcached with the -e option
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> D:\backup
> [restart] no metadata save file, starting with a clean cache
>
> I check the file system and I can see that the backup file is created:
>
> D:\>dir
>  Volume in drive D has no label.
>  Volume Serial Number is 5881-2000
>
>  Directory of D:\
>
> 07/12/2021  11:1767,108,864 backup
>1 File(s) 67,108,864 bytes
>0 Dir(s) 988,749,824 bytes free
>
> I start a telnet session and set and get mykey
>
> telnet localhost 11211
>
> set mykey 0 300 4
> data
> STORED
> get mykey
> VALUE mykey 0 4
> END
>
> I stop Memcached using Ctrl-C and restart
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> D:\backup
> [restart] no metadata save file, starting with a clean cache
> Signal handled: Interrupt.
>
> C:\Users\chapmand\memcached\1.6.12\libevent-2.1\x64>memcached.exe -e 
> D:\backup
> [restart] no metadata save file, starting with a clean cache
>
> I think the issue may be here as I would not expect to restart with a 
> clean cache. I see no
> metadata file on the D: drive.
>
> When I run the telnet session again and type the get mykey command it does 
> not find the data value.
>
> Any help would be really appreciated.
> Thank you in advance.
>
> Kind regards,
> Damian.
>
>

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