Re: key value store restore time

2016-02-19 Thread Tao Feng
Hi Leo, At linkedin when we switched to using RocksDB for Samza last year, we did some tests to see how well RocksDB performs. We used the rocksdb microbenchmark( https://github.com/facebook/rocksdb/blob/master/java/benchmark/src/main/java/org/rocksdb/benchmark/DbBenchmark.java) to conduct serval

Re: key value store restore time

2016-02-18 Thread Jagadish Venkatraman
Samza 0.10 introduces the feature of Yarn host affinity for this exact reason. For jobs that need to bootstrap lots of state, downtime during bootstrapping is not acceptable. In our production usecases, we've observed bootstrap times from 25 mins to about 30 seconds. Please refer https://samza.apa

key value store restore time

2016-02-18 Thread Leo Woessner
We are starting to use the key-value store with rocksdb. We are trying to offically add Samza to our stack and functionally everything is great. But, I am seeing minutes to hours restore time. Does anyone have any benchmarks on data size versus restore time? My big question is how will this sca