Hi Ankit,
By restore I’m assuming you mean that DMTCP should restore the deleted file to
the state it was in at the time of checkpoint. If yes, then you could try using
the --ckpt-open-files flag with dmtcp_launch. This should save a copy of all the
files open at the time of checkpoint, and then restores them on restart, even if
they were deleted.
Thanks,
Rohan
On Sep 30, 2014, at 8:51 AM, Ankit Garg <[email protected]> wrote:
> Hi,
> I guess it will not work. I tried the following code segment
>
> #include <stdio.h>
> #include <string.h>
> #include <stdlib.h>
> #include <unistd.h>
> #include "dmtcp.h"
>
> int main(int argc, char *argv[])
> {
> FILE *fp = fopen("msg", "r");
> printf("Hello world \n");
> char buff[256];
> //char s[100];
> int s = 0;
> //memset(s, 1, sizeof(s));
> while(1)
> {
> sleep(1);
> printf("S == %d\n", s);
> s++;
>
> if(fgets(buff, 256, fp) != NULL)
> printf("Read value = %s\n", buff);
> if(s == 8)
> {
> if (dmtcp_checkpoint() != DMTCP_AFTER_CHECKPOINT)
> printf("Checkpoint Not successful\n");
> else
> printf("Hurray \n");
> }
> if(s == 20)
> {
> unlink("msg");
> exit(0);
> }
> }
> }
>
> I got following error on restart
>
> ./dmtcp_restart_script.sh
> [43000] ERROR at fileconnection.cpp:708 in refill;
> REASON='JASSERT(jalib::Filesystem::FileExists(_path)) failed'
> _path = msg
> Message: File not found.
> a.out (43000): Terminating...
>
>
> Is there a way above can work ?
>
>
> Regards
> Ankit
>
>
>
> On 09/30/2014 06:09 PM, Ankit Garg wrote:
>> Hi,
>> I want ask whether following application can restored using dmtcp.
>>
>> Consider an application which reads contents from some file and then takes
>> checkpoint in between using dmtcp_checkpoint API interface. Now if the end
>> of application this files gets deleted, would restore still work from
>> checkpoint database ?
>>
>>
>> Regards
>> Ankit
>>
>
>
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