How can I define timeout in session lock? Can the session lock cross datacenter?

[denglifeng3]

I try to create a new session like this: ImmutableSession.builder()
.name(sessionName).ttl("10s").behavior("delete").build()
But the session is not deleted after 10s.
Here is my all code:

@OverRide
public boolean lock(boolean block) {
final boolean[] flag = {true};
List dcList = CONSUL_CLIENT.catalogClient().getDatacenters();
out:
while (true) {
dc:
for (String dc : dcList) {
String sessionIdTemp = createSession(dc);
sessionIdMap.put(dc, sessionIdTemp);
flag[0] = flag[0] && CONSUL_CLIENT.keyValueClient().acquireLock(this.lockKey, sessionIdTemp);
if (!flag[0]) {
logger.warn("try to add request lock in dc:{} failed.", dc);
if (block && times.get() > 0) {
times.decrementAndGet();
continue out;
} else {
return false;
}
} else {
logger.info("try to add request lock in dc:{} success.", dc);
}
}
return flag[0];
}
}

private String createSession(String dc) {
    if (CONSUL_CLIENT.sessionClient().getSessionInfo(sessionName, dc).isPresent()) {
        return CONSUL_CLIENT.sessionClient().getSessionInfo(sessionName, dc).get().getId();
    } else {
        final ImmutableSession session = ImmutableSession.builder()
                .name(sessionName).ttl("10s").behavior("delete").build();
        SessionCreatedResponse session1 = CONSUL_CLIENT.sessionClient().createSession(session, dc);
        System.out.println(session1);
        return session1.getId();
    }
}


@Override
public boolean unlock() {
    final boolean[] flag = {true};
    List<String> dcList = CONSUL_CLIENT.catalogClient().getDatacenters();
    for(String dc: dcList){
        String sessionIdTemp = sessionIdMap.get(dc);
        flag[0] = flag[0] && CONSUL_CLIENT.keyValueClient().releaseLock(lockKey, sessionIdTemp);
        CONSUL_CLIENT.keyValueClient().deleteKey(lockKey);
        CONSUL_CLIENT.sessionClient().destroySession(sessionIdTemp, dc);
        if(!flag[0]){
            logger.warn("try to release lock in dc:{} failed.", dc);
            times.decrementAndGet();
            continue;
        }
    }
    return flag[0];
}

Thank you so much.