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awsdocs / amazon-emr-release-guide

The open source version of the Amazon EMR Release Guide. You can submit feedback & requests for changes by submitting issues in this repo or by making proposed changes & submitting a pull request.
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Incorrect default in documentation for hbase.region.max.filesize #5

Closed jwtrhs closed 6 years ago

jwtrhs commented 6 years ago

The docs say the default is 256MB, but it appears to actually be 10GB. Not sure if this is an issue with the documentation or the default is incorrect.

Here's what I get in my HBase config:

<property>
  <name>hbase.hregion.max.filesize</name>
  <value>10737418240</value>
  <final>false</final>
  <source>hbase-default.xml</source>
</property>
Pahtoe commented 6 years ago

Hi Jonathan, thanks for using EMR and thanks for reaching out with the correction. I'll verify with engineering and update the doc.

Pahtoe commented 6 years ago

Hey there, again. It looks like we have the same value you found documented as a default in these two places. Can you give me a link to where you found this bad info? Thanks again!

https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-hbase-s3.html https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-hbase-configure.html

jwtrhs commented 6 years ago

Hi Jeff, yes it was on the second page: https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-hbase-configure.html

Under the configuration section toward the end for hbase.hregion.max.filesize it notes the default is 256MB, and the example shows bumping it up to 1GB. I think this was the standard advice for an older version of HBase, but in the most recent version I believe the default is 10GB.

Pahtoe commented 6 years ago

Ah. Nice! Great catch, I missed that (I've become too much the skimmer). I'll get it fixed. Thanks again, and thanks for the follow up!