Ping!! Any suggestions/responses.
On 6/17/12, prasenjit mukherjee <prasen....@gmail.com> wrote: > Thanks for the quick response. Additional questions... > > 1. It seems that the initial graph/vertices are loaded only during > startup/setup time. If I understand correctly further additions to > graph can be done only by implementing MutableVertex ? Using > MutableVertex it should also be possible to take streaming data as > input and add new vertices/edges. Is that correct ? > > 2. Is there a simpler way to debug Giraph code ( user+plaform ). The > following approach ( > http://ben-tech.blogspot.in/2011/08/how-to-debug-hadoop-mapreduce-jobs-in.html > ) does require a driver class to run. Are there any readymade utility > classes for debugging giraph in elcupse ? > > -Thanks, > Prasenjit > > On Sun, Jun 17, 2012 at 1:33 PM, Avery Ching <ach...@apache.org> wrote: >> On 6/16/12 10:54 PM, prasenjit mukherjee wrote: >>> >>> 1. Is it the master who ensures that sendToNeighbours() call actually >>> succeeds Or it is entirely done by the underlying hadoop RPC ? >> >> Prior to the checkpoint, all messages must be guaranteed to be sent and >> delivered by all clients. >> >> >>> 2. Is it possible that a single errant worker ( hadoop mapper ) can >>> delay the completion of a single superstep ? >> >> Yes. This is possible, especially in skewed distributions. >> >> >>> 3. While running giraph I saw 1 master_zookeper and 3 workers. Does it >>> mean that in default config zookeper runs on master mapper ? >> >> >> Yes. Currently, the master thread and zookeeper service runs on the same >> mapper. >> >>> -Thanks, >>> Prasenjit >> >> > -- Sent from my mobile device
