https://issues.apache.org/jira/browse/SPARK-139 https://issues.apache.org/jira/browse/SPARK-139 https://issues.apache.org/jira/browse/SPARK-1476 https://issues

https://issues.apache.org/jira/browse/SPARK-139 https://issues.apache.org/jira/browse/SPARK-139 https://issues.apache.org/jira/browse/SPARK-1476 https://issues.apache.org/jira/browse/SPARK-1476 https://issues.apache.org/jira/browse/SPARK-6235 https://issues.apache.org/jira/browse/SPARK-6235 You'll hit this bug when your model size is larger than 2GB. BTW, Recomputation of RDDs may result in duplicated accumulator updates. So please do not use accumulator in your trainer for gradient summation. They know that, but they said they will not fix that. https://issues.apache.org/jira/browse/SPARK-732 https://issues.apache.org/jira/browse/SPARK-732 https://issues.apache.org/jira/browse/SPARK-5490 https://issues.apache.org/jira/browse/SPARK-5490