failureDetector.recordSuccess(response.getNode(), response.getRequestTime());
if(logger.isDebugEnabled())
logger.debug("GET for key " + ByteUtils.toHexString(key.get())
+ " (keyRef: " + System.identityHashCode(key)
+ ") successes: " + successCount.intValue() + " preferred: "
+ preferred + " required: " + required
+ " new GET success on node " + node.getId());
HashSet<Integer> zoneResponses = null;
if(pipelineData.getKeyToZoneResponse().containsKey(key)) {