Perfect, thank you. D ...
Perfect, thank you.
I’m running the sandbox v2.0 in Virtualbox using the .ova file imported to Virtualbox, with no modifications.
When I try to run some more complex queries using Hive, I get an out-of-memory error in the reduce phase. I have tried to change several of the relevant settings in mapred-site.xml, however this does not resolve the problem, and indeed the error message stays the same, saying “Container xxxxxx has run out physical memory, used 579MB out of 512MB” or similar, despite having increased the reduce memory in a couple of places in mapreduce-site.xml to 2048 i.e. it looks as though changing mapred-site.xml in /etc/hadoop/conf and rebooting doesn’t actually change these settings for me.
So three questions:
1. Is there more than one place where mapred-site.xml is located.
2. If so, which one should I modify.
3. Any other reasons why the sandbox won’t pick up new settings when I reboot the VM?
If there isn’t an obvious solution, I’ll post the mapred-site.xml file and the actual error trace for comment.
Any help would be much appreciated,
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