public void setBucketSick(DistributedMember member, boolean sick) {
    synchronized (sickHosts) {
      if (sick) {
        sickHosts.add(member);
      } else {
        sickHosts.remove(member);
      }
      bucketSick.set(sickHosts.size() > 0);
    }
  }
Returns the total number of datastores hosting an instance of this bucket.

@return the total number of datastores hosting an instance of this bucket
geode-core/src/main/java/org/apache/geode/internal/cache/ProxyBucketRegion.java