If the first error is not fixed by Chiwans PR, then we should create a JIRA for it to not forget it.
@Felix: Chiwan's PR is here [1]. Could you try to run ALS again with this version? Cheers, Till [1] https://github.com/apache/flink/pull/751 On Thu, Jun 4, 2015 at 10:10 AM, Chiwan Park <chiwanp...@icloud.com> wrote: > Hi. The second bug is fixed by the recent change in PR. > But there is just no test case for first bug. > > Regards, > Chiwan Park > > > On Jun 4, 2015, at 5:09 PM, Ufuk Celebi <u...@apache.org> wrote: > > > > I think both are bugs. They are triggered by the different memory > > configurations. > > > > @chiwan: is the 2nd error fixed by your recent change? > > > > @felix: if yes, can you try the 2nd run again with the changes? > > > > On Thursday, June 4, 2015, Felix Neutatz <neut...@googlemail.com> wrote: > > > >> Hi, > >> > >> I played a bit with the ALS recommender algorithm. I used the movielens > >> dataset: > >> http://files.grouplens.org/datasets/movielens/ml-latest-README.html > >> > >> The rating matrix has 21.063.128 entries (ratings). > >> > >> I run the algorithm with 3 configurations: > >> > >> 1. standard jvm heap space: > >> > >> val als = ALS() > >> .setIterations(10) > >> .setNumFactors(10) > >> .setBlocks(100) > >> > >> throws: > >> java.lang.RuntimeException: Hash Join bug in memory management: Memory > >> buffers leaked. > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.buildTableFromSpilledPartition(MutableHashTable.java:733) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.prepareNextPartition(MutableHashTable.java:508) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.nextRecord(MutableHashTable.java:541) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.NonReusingBuildFirstHashMatchIterator.callWithNextKey(NonReusingBuildFirstHashMatchIterator.java:104) > >> at > org.apache.flink.runtime.operators.MatchDriver.run(MatchDriver.java:173) > >> at > >> > >> > org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:496) > >> at > >> > >> > org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:362) > >> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559) > >> at java.lang.Thread.run(Thread.java:745) > >> > >> 2. 5G jvm heap space > >> > >> val als = ALS() > >> .setIterations(10) > >> .setNumFactors(10) > >> .setBlocks(150) > >> > >> throws: > >> > >> java.lang.NullPointerException > >> at > >> > >> > org.apache.flink.runtime.operators.hash.HashPartition.spillPartition(HashPartition.java:310) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.spillPartition(MutableHashTable.java:1090) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.insertBucketEntry(MutableHashTable.java:923) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.buildTableFromSpilledPartition(MutableHashTable.java:779) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.prepareNextPartition(MutableHashTable.java:508) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.MutableHashTable.nextRecord(MutableHashTable.java:541) > >> at > >> > >> > org.apache.flink.runtime.operators.hash.NonReusingBuildFirstHashMatchIterator.callWithNextKey(NonReusingBuildFirstHashMatchIterator.java:104) > >> at > org.apache.flink.runtime.operators.MatchDriver.run(MatchDriver.java:173) > >> at > >> > >> > org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:496) > >> at > >> > >> > org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:362) > >> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559) > >> at java.lang.Thread.run(Thread.java:745) > >> > >> 3. 14G jvm heap space > >> > >> val als = ALS() > >> .setIterations(10) > >> .setNumFactors(10) > >> .setBlocks(150) > >> .setTemporaryPath("/tmp/tmpALS") > >> > >> -> works > >> > >> Is this a Flink problem or is it just my bad configuration? > >> > >> Best regards, > >> Felix > >> > > > > > >
