Re: IoTDB supports distributed version

2019-04-01 Thread Xiangdong Huang
brain and lose data? > > > > ____ > From: Julian Feinauer > Sent: Sunday, March 31, 2019 11:34 AM > To: dev@iotdb.apache.org > Subject: Re: IoTDB supports distributed version > > Hi Felix, > > could y

Re: IoTDB supports distributed version

2019-03-31 Thread Felix Cheung
: Julian Feinauer Sent: Sunday, March 31, 2019 11:34 AM To: dev@iotdb.apache.org Subject: Re: IoTDB supports distributed version Hi Felix, could you elaborate a bit on your use cases? I am a bit unsure about the consistency, so it would be interesting to hear where you see the important points. Thanks

Re: IoTDB supports distributed version

2019-03-31 Thread Julian Feinauer
the strong consistency option. (Very cool discussion!) From: Julian Feinauer Sent: Thursday, March 28, 2019 1:10 AM To: dev@iotdb.apache.org Subject: Re: IoTDB supports distributed version Hi, this is a very i

Re: IoTDB supports distributed version

2019-03-28 Thread Julian Feinauer
Hi, this is a very interesting (and important) question. I think we should really consider what we can skip (from an application perspective) and what to keep. Perhaps a Token Ring architecture like Cassandra uses could also be a good fit, if we hash on the device id or something. At least in

Re: IoTDB supports distributed version

2019-03-28 Thread Xiangdong Huang
yep, I think the cluster is in P2P mode when they startup. Then a leader election algorithm will change the cluster into the M/S mode (RAFT algorithm is qualified). If the master is down, a new master can be elected and lead the cluster. By the way, we need to consider the cost of keeping strong

IoTDB supports distributed version

2019-03-27 Thread 徐毅
Hi, IoTDB only supports stand-alone version now. We plan to develop distributed version in next two months. We initially decided to use the master-slave architecture. The master node is responsible for processing read and write requests, and the slave node, which is a copy of master