> On Dec. 5, 2014, 3:45 p.m., Josh Elser wrote: > > shell/src/main/java/org/apache/accumulo/shell/commands/CompactCommand.java, > > line 225 > > <https://reviews.apache.org/r/28739/diff/1/?file=783471#file783471line225> > > > > What's the intent behind this option? Why would you ever want to > > compact some of the files of a table with a different compression codec > > than what the table default is? > > > > Only reason I can come up with is importing files written with a > > different codec and wanting to compact just those files. > > > > Actually, I'd have the same question against, datablock size, > > indexblock size, hdfs replication, and hdfs block size options too. > > kturner wrote: > One use case I was thinking of is using the compaction range option along > w/ these options to compact one tablet differently for performance testing. > > Josh Elser wrote: > Ok, that's fine -- proper marketing should be sufficient. I was worried > about the implications of users finding these options and not understanding > how they should actually be used (that they'd just be 'undone' the next time > a compaction over those tablets happens).
I was trying to think of an appropriate place to document this. Perhaps you could update the "help" message on CompactCommand to give a warning about the use of the new options? I'm not sure where in the user manual it would be appropriate to discuss them (I don't think we have a perf tuning section yet..). - Josh ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/28739/#review63998 ----------------------------------------------------------- On Dec. 5, 2014, 10:43 p.m., kturner wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/28739/ > ----------------------------------------------------------- > > (Updated Dec. 5, 2014, 10:43 p.m.) > > > Review request for accumulo. > > > Bugs: ACCUMULO-3134 > https://issues.apache.org/jira/browse/ACCUMULO-3134 > > > Repository: accumulo > > > Description > ------- > > Added file selection and output configuration to shell compact command > > > Diffs > ----- > > > core/src/main/java/org/apache/accumulo/core/compaction/CompactionSettings.java > PRE-CREATION > > server/tserver/src/main/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategy.java > PRE-CREATION > > server/tserver/src/test/java/org/apache/accumulo/tserver/compaction/strategies/ConfigurableCompactionStrategyTest.java > PRE-CREATION > shell/src/main/java/org/apache/accumulo/shell/Shell.java 8927ee0 > shell/src/main/java/org/apache/accumulo/shell/commands/CompactCommand.java > 660630e > test/src/test/java/org/apache/accumulo/test/ShellServerIT.java d878c7f > > Diff: https://reviews.apache.org/r/28739/diff/ > > > Testing > ------- > > Added an IT that test file selection options on compact command. IT does not > test output file configuration. > > > Thanks, > > kturner > >
