[memcachedb] [ANN] memcachedb 0.1.0 is released and replication is ready!

[rkmr.em at gmail.com]

Dear Steve,
pl. add support for storing memcached FLATGS that all clients use!!
thanks a lot!!!!!!!!
mark

On 11/5/07, Steve Chu <stvchu at gmail.com> wrote:
>
>
> Now replication is ready! You can achieve your HA and scale your
> application by multi-reading, and also get profit from amazing
> performance (high-frequency writing and reading) that memcachedb
> provided.
>
> Memcachedb is not that *blocked* you think, with a transaction log buffer!
>
> We do a simple testing *AGAIN* on a Dell PowerEdge 2850 box that sets
> 20,000,000 records into memcachedb
> with a 16 bytes key and 10 bytes value.
>
> Simply start memcachedb with:
> ./memcachedb -p21211 -d -r -u root -H ./env1 -N -R 127.0.0.1:31211 -M
> ./memcachedb -p21212 -d -r -u root -H ./env2 -N -R 127.0.0.1:31212 -O
> 127.0.0.1:31211 -S
>
> And here is a simple testing:
>
> =================================================================
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include "memcache.h"
>
> int main(int argc, char **argv){
>     int ret = 0;
>     char key[32] = {0};
>     char val[32] = {0};
>     int n = 0;
>     time_t start;
>     time_t end;
>     struct memcache *mc = mc_new();
>     mc_server_add4(mc, "127.0.0.1:21211");
>
>     start = time(NULL);
>     for (n=0; n<20000000; n++){
>         sprintf(key, "%016d", n);
>         sprintf(val, "%010d", n);
>         ret = mc_set(mc, key, strlen(key), val, strlen(val), 0, 0);
>     }
>     end =  time(NULL);
>     printf("time cost: %ld second\n", end - start);
>
>     mc_free(mc);
>     return 0;
> }
> ====================================================================
>
> The total time cost is: 2506 second, the db file size is 1.6 GB.
> It writes almost *8000* records per second to a master in a replicated
> group.
>
> Another testing case for reading:
> ======================================================================
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <stdlib.h>
> #include "memcache.h"
>
> int main(int argc, char **argv){
>     char *ret = 0;
>     char key[32] = {0};
>     int n = 0;
>     time_t start;
>     time_t end;
>     struct memcache *mc = mc_new();
>     mc_server_add4(mc, "127.0.0.1:21212");
>
>     start = time(NULL);
>     for (n=0; n<20000000; n++){
>         sprintf(key, "%016d", n);
>         ret = mc_aget(mc, key, strlen(key));
>         if (strlen(ret) != 10){
>                 printf("%s\n", ret);
>         }
>             free(ret);
>     }
>     end =  time(NULL);
>     printf("time cost: %ld second\n", end - start);
>
>     mc_free(mc);
>     return 0;
> }
>
> ======================================================================
> The total time cost is: 1204 second.
> It reads *16000+* records per second from a replicas.
>
> You can download it here:
> http://memcachedb.googlecode.com/files/memcachedb-0.1.0.tar.gz
>
> For more info, please visit: http://memcachedb.googlecode.com
>
> --
> Steve Chu
> http://stvchu.org
>
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