Ze Mao

@mfreeborn any suggestion?

@xafha 我需要，非常希望取得联系 email: bWFvemUzNjVAZ21haWwuY29t

`transferTo` is good. It's doing zero-copy as expected. `sendfile` is observed when GET happen.

I see. I open this ticket for Sophie, for her to practice development process on this one. `--customHeader x-ambry-ttl:36000` is good. We can also add an explicitly option, `--blobTtl`.

I see exceptions after running HelixBootstrapUpgradeTool on new static files. [2017-12-20 15:31:59,172] ERROR exception in handling child-change. instance: localhost_20088, parentPath: /Ambry-Proto/CONFIGS/PARTICIPANT, listener: com.github.ambry.clustermap.HelixClusterManager$ClusterChangeHandler@6b4a2c09 (org.apache.helix.manager.zk.ZKExceptionHandler) java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936) at com.github.ambry.clustermap.HelixClusterManager$ClusterChangeHandler.updateSealedStateOfReplicas(HelixClusterManager.java:368) at...

It's easy to remove this NPE and add new node to map. However, I am not able to add new replicas of the new node. The notification other node gets...

My prototype for this is working. The idea is 1. add new operationType(subBlobKeys) to GetBlobOptions 2. by existing GetBlobOptionsInternal.getChunkIdsOnly to differentiate data request and subBlobKeys request. 3. add storeKeys(existing class)...

Will do PR soon.

@yhilem Looks like you are trying to use Cassandra to solve the name-ambryID mapping issue. This is a good solution for people who want to migrate/mirror s3 to Ambry. Is...

Same question. Looking forward to it.