C.1. General | |
Are there other HBase FAQs? | |
See the FAQ that is up on the wiki, HBase Wiki FAQ as well as the Troubleshooting page and the Frequently Seen Errors page. | |
C.2. EC2 | |
Why doesn't my remote java connection into my ec2 cluster work? | |
See Andrew's answer here, up on the user list: Remote Java client connection into EC2 instance. | |
C.3. Building HBase | |
When I build, why do I always get | |
Ignore it. Its not an error. It is officially ugly though. | |
C.4. Upgrading your HBase | |
Whats involved upgrading to HBase 0.90.x from 0.89.x or from 0.20.x? | |
This version of 0.90.x HBase can be started on data written by HBase 0.20.x or HBase 0.89.x. There is no need of a migration step. HBase 0.89.x and 0.90.x does write out the name of region directories differently -- it names them with a md5 hash of the region name rather than a jenkins hash -- so this means that once started, there is no going back to HBase 0.20.x. | |