public Set<DistributedMember> getSickMembers() {
    synchronized (sickHosts) {
      return Collections.unmodifiableSet(new HashSet<>(sickHosts));
    }
  }
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