Well, you are running in local mode, so it cannot find another peer to replicate the blocks received from receivers. That's it. Its not a real concern and that error will go away when you are run it in a cluster.
On Thu, Apr 9, 2015 at 11:24 AM, Nandan Tammineedi <nan...@defend7.com> wrote: > Hi, > > I'm running a spark streaming job in local mode (--master local[4]), and > I'm seeing tons of these messages, roughly once every second - > > WARN BlockManager: Block input-0-1428527584600 replicated to only 0 > peer(s) instead of 1 peers > > We're using spark 1.2.1. Even with TRACE logging enabled, we're not seeing > any log messages indicating failure to replicate the blocks. > > Should we be concerned about this warning (and if so, how should we debug > this), or is this a corner case in local mode where replication is not > attempted, but the warning is emitted anyway? If so, what is the workaround? > > thanks > > Nandan >
