Hi All, I am trying to do some long-time initialisation task in bolt prepare() method in local mode.
I always got error like this: *WARN o.a.s.s.o.a.z.s.p.FileTxnLog - fsync-ing the write ahead log in SyncThread:0 took 1197ms which will adversely effect operation latency. See the ZooKeeper troubleshooting guide* And then the task fails. Could anyone tell me how to fix this problem? Or is it a good practice to run long-time task in prepare() method? If not, what is supposed to be the correct way to do it? Many thanks for your kind help. Best, Xiang ------------------------------- Xiang Wang, PhD Candidate Database Research Group School of Computer Science and Engineering The University of New South Wales SYDNEY, AUSTRALIA
