MB-3799 - moxi default libmemcached hashing is now ketama_weighted

Change-Id: I84c498913f9f816ecd4a084375cccbe67b556967
Reviewed-on: http://review.membase.org/6537
Reviewed-by: Matt Ingenthron <matt@couchbase.com>
Tested-by: Steve Yen <steve.yen@gmail.com>

mcs.c

@@ -310,7 +310,7 @@ mcs_st *lmc_create(mcs_st *ptr, const char *config,
 
     memcached_st *mst = memcached_create(NULL);
     if (mst != NULL) {
-        memcached_behavior_t b = MEMCACHED_BEHAVIOR_KETAMA;
+        memcached_behavior_t b = MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
         uint64_t             v = 1;
 
         if (opts != NULL) {

t/issue-MB-3076.sh

@@ -127,18 +127,18 @@ echo starting memcached simulant 11277...
 ./moxi -d -P /tmp/moxi-3076-test-memcached.pid -p 11277
 sleep 1
 echo -e "set a 0 0 1\r\na\r" | nc 127.0.0.1 11277
-echo -e "set x 0 0 1\r\nb\r" | nc 127.0.0.1 11277
+echo -e "set b 0 0 1\r\nb\r" | nc 127.0.0.1 11277
 
 echo get a x | nc 127.0.0.1 11266
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
 else
     echo "OK expected some VALUE's"
 fi
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
@@ -153,17 +153,17 @@ echo starting memcached simulant 11288...
 ./moxi -d -P /tmp/moxi-3076-test-memcached.pid -p 11288
 sleep 1
 echo -e "set a 0 0 1\r\nA\r" | nc 127.0.0.1 11288
-echo -e "set x 0 0 1\r\nB\r" | nc 127.0.0.1 11288
+echo -e "set b 0 0 1\r\nB\r" | nc 127.0.0.1 11288
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
 else
     echo "OK expected some VALUE's"
 fi
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
@@ -184,17 +184,17 @@ echo starting memcached simulant 11277...
 ./moxi -d -P /tmp/moxi-3076-test-memcached.pid -p 11277
 sleep 1
 echo -e "set a 0 0 1\r\na\r" | nc 127.0.0.1 11277
-echo -e "set x 0 0 1\r\nb\r" | nc 127.0.0.1 11277
+echo -e "set b 0 0 1\r\nb\r" | nc 127.0.0.1 11277
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
 else
     echo "OK expected some VALUE's"
 fi
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
@@ -215,17 +215,17 @@ echo starting memcached simulant 11288...
 ./moxi -d -P /tmp/moxi-3076-test-memcached.pid -p 11288
 sleep 1
 echo -e "set a 0 0 1\r\nA\r" | nc 127.0.0.1 11288
-echo -e "set x 0 0 1\r\nB\r" | nc 127.0.0.1 11288
+echo -e "set b 0 0 1\r\nB\r" | nc 127.0.0.1 11288
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1
 else
     echo "OK expected some VALUE's"
 fi
 
-count=$(echo get a x | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
+count=$(echo get a b | nc 127.0.0.1 11266 | grep "VALUE" | wc -l)
 if [[ $count -ne 1 ]] ; then
     echo "FAIL expected some VALUE's"
     ret=1