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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2008/09/27 01:38:22 UTC
[Hadoop Wiki] Trivial Update of "Hbase/Migration" by JimKellerman
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The following page has been changed by JimKellerman:
http://wiki.apache.org/hadoop/Hbase/Migration
The comment on the change is:
change wording to avoid text being interpreted as Wiki words
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== Assertions ==
- * All hbase data and state is out on the FileSystem: Moving from one version should be just a case of moving or rewriting files on the FileSystem.
+ * All hbase data and state is out on the file system: Moving from one version should be just a case of moving or rewriting files on the file system.
* Hbase cannot be running when a migration is run.
* This can be tricky to assert when the hbase versions differ to the extent that they are unable to talk to each other (Caller just hangs and eventually timesout).
* Sometimes, the amount of on-filesystem data that needs to be changed will be large so migration will need to run a MR job.