Hi all,
I am using kernel client based Ceph version 0.21.1 on linux kernel
2.6.35. I am using a six node cluster with 3 machines and 3 virtual
machines.
I wrote a simple program to continuously write to a file. After a few
iterations, the test gets stuck. Sometimes i am unable to unmount the
ceph mountpt subsequently.
I am using the following code
--
int main()
{
FILE *fp;
int i;
int written_before_stat;
int ret_value;
/* some junk buffer*/
char buffer[1024* SIZEOF_ONE_NODE];
char tbuffer[30];
struct timeval tv;
time_t curtime;
gettimeofday(&tv, NULL);
curtime=tv.tv_sec;
strftime(tbuffer,30,"%m-%d-%Y %T.",localtime(&curtime));
printf("%s%ld\t|",tbuffer,tv.tv_usec);
printf("starting....\n");
printf("infinite loop. Ctrl+C when you wish !!\n");
/* keep writing to the ceph file*/
/* infinite loop. Ctrl+C when you wish*/
while(1)
{
/* the frenetic writing phase */
fp = fopen("/ceph/test_file1","w");
if(fp == NULL)
{
printf("ceph dir write file open err\n");
exit(-1);
}
for(i = 0; i < 1024 ;i++)
fwrite(buffer, sizeof(buffer[0]),
sizeof(buffer)/sizeof(buffer[0]), fp);
fclose(fp);
gettimeofday(&tv, NULL);
curtime=tv.tv_sec;
strftime(tbuffer,30,"%m-%d-%Y %T.",localtime(&curtime));
printf("%s%ld\t|",tbuffer,tv.tv_usec);
printf("120MB written..\n");
fflush(stdout);
usleep(1000);
}
}
--------
Am i missing something?. Thanks for any help.
Thanks,
Mugunthan
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