When more than one slave is attached to a single master, only the first slave gets the data replicated. Rest are not getting any data (ZR #2)

from customer

(1) 1 master, 8 slaves
master and 7 slaves have build 1.5.3_r13
1 slave has build 1.5.2

(2)
Start slave with –e tap_peer=zstore-dev-mc3:11211
CLI looks like this:

LD_PRELOAD="/usr/local/gperftools/lib/libtcmalloc_minimal.so" /usr/local/bin/memcached d -p 11211 -u nobody -c 30000 -P /var/run/memcached/memcached.pid -E /usr/local/lib/ep.so -e "dbname=/ebs/zstore/test.db;tap_peer=zstore-dev<master_machine>:11211;ht_size=12582917;initfile=/tmp/init.sql" -r -v >/tmp/memcache.log 2>&1"

(3) run

ACTUAL RESULTS:
only first slave gets data

machines:
zstore-dev-mc7 (as master)

All the below machines were attached as slaves to zstore-dev-mc7.
zstore-dev-mc7a
zstore-dev-mc7b
zstore-dev-mc6
zstore-dev-mc6a
zstore-dev-mc6b

one machine with older build (zmemcached-1.5.2-1.x86_64.rpm) installed was attached as slave to master (zstore-dev-mc7) for comparison purpose
zstore-dev-mc13b