Hi, The fact that you can work with 29G cluster with only 8G of memory might be caused by the following things: 1) Your job doesn't use all data form cluster and hence caches only part of it. This is the most likely case. 2) You have eviction policy configured for IGFS data cache. 3) Or may be you use offheap. Please provide the full XML configuration and we will be able to understand it.
Anyways, your initial question was about out-of-memory. Could you provide exact error message? Is it about heap memory or may be permgen? As per execution time, this depends on your workload. If there are lots map tasks and very active work with data, you will see improvement in speed. If there are lots operations on file system (e.g. mkdirs, move, etc.) and very little amount of map jobs, chances there will be no speedup at all. Provide more details on the job you test and type of data you use and we will be able to give you more ideas on what to do. Vladimir. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/about-mr-accelerator-question-tp3502p3552.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
