Make important configurations more obvious to new users
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Key: HBASE-2328
URL: https://issues.apache.org/jira/browse/HBASE-2328
Project: Hadoop HBase
Issue Type: Improvement
Reporter: Jean-Daniel Cryans
Fix For: 0.20.4, 0.21.0
Over the last 2 weeks, I encountered many situations where people didn't set
file descriptors and xcievers higher and that was causing a ton of problems
that are hard to debug if you're not used to them. To improve that we should:
- Refuse to start HBase if ulimit -n returns some small number smaller than
2048, or at least print out in big red blinking letters that the current
configuration is bad and then link to a simple troubleshooting entry on the
wiki.
- Write a clearer Getting Started document where we don't give as much
explanations but add more stuff like "this is what your
hbase-site.xml/hdfs-site/xml should look like now" and give a complete file
example. At this point we don't even give a number for xcievers and we expect
new users to come up with one.
Any other low hanging fruit others can think of?
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