Hadoop Upgrade Wiki
Step 8 of the upgrade process mentions copying the 'edits' and 'fsimage' file to a backup directory. After step 19 it says: 'In case of failure the administrator should have the checkpoint files in order to be able to repeat the procedure from the appropriate point or to restart the old version of Hadoop.' Is this different from running 'start-dfs.sh -rollback' ? I'm not sure if the Wiki is outdated or not. If its the same then step #8 can be skipped altogether I'm guessing.. thanks
Re: Hadoop upgrade wiki page
Marc Harris wrote: The hadoop upgrade wiki page contains a small typo http://wiki.apache.org/hadoop/Hadoop_Upgrade . [ ... ] I don't have access to modify it, but someone else might like to. Anyone can create themselves an account on the wiki and modify any page. Doug
Hadoop upgrade wiki page
The hadoop upgrade wiki page contains a small typo http://wiki.apache.org/hadoop/Hadoop_Upgrade . Step 2 of the instructions is: bin/hadoop fsck / -files –blocks –locations > dfs-v-old-fsck-1.log Notice that there are dashes of some sort before "blocks" and "locations". These should be hyphens (minus signs). I don't have access to modify it, but someone else might like to. - Marc