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Ship it! Current implementation looks pretty good. Small issue with type safety on ArrayList. I prefer to avoid the "N.B." notes in favor of plain English (ASF development is typically done in English, and this is a relatively obscure abbreviation for a Latin phrase.) You may want to clean up the TODOs (create issues, as needed) before pushing. I think the sanity check on the return from the chooser should be done under ACCUMULO-3400 for organizational reasons (and because it should be applied to 1.6 also). No issue with the content of that change, though. If you push it under 3393, that's fine, it just partially satisfies 3400, and 3400 can be closed when the check is back-ported to 1.6. No need to re-review for me as long as the type safety issue is fixed. The rest are nice to have. server/base/src/main/java/org/apache/accumulo/server/fs/PreferredVolumeChooser.java <https://reviews.apache.org/r/28873/#comment107525> Needs diamond for type safety: new ArrayList<> - Christopher Tubbs On Dec. 11, 2014, 3:14 a.m., Sean Busbey wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/28873/ > ----------------------------------------------------------- > > (Updated Dec. 11, 2014, 3:14 a.m.) > > > Review request for accumulo and Jenna Huston. > > > Bugs: ACCUMULO-3393 > https://issues.apache.org/jira/browse/ACCUMULO-3393 > > > Repository: accumulo > > > Description > ------- > > ACCUMULO-3393 Follow-on work for per-table volume chooser. > > Still has TODOs for additional tickets I need to file. I'll update the review > to remove once I have them all filed. I think everything marked TODO can wait > for a later ticket. Please comment on relevant section if you think something > needs to be done now. > > * docs clean up + code guideline compliance. > * ensure RandomVolumeChoosers are independent when used per-table. > * make sure that per-table choosers can keep state the way that global > choosers can > * make sure that a chooser can only pick from the options it is presented. > * reduce object creation in critical path for Tablet.split. > > > Diffs > ----- > > core/src/main/java/org/apache/accumulo/core/conf/Property.java > 4c2d0b41b3bce32449861da3ac42fa27deb2b182 > > server/base/src/main/java/org/apache/accumulo/server/fs/PerTableVolumeChooser.java > 7a825c796eb5a25de8c748e2aba642f483697b9a > > server/base/src/main/java/org/apache/accumulo/server/fs/PreferredVolumeChooser.java > 7ed7bba809a4e5e4b2d472c3327b15adb37251a7 > > server/base/src/main/java/org/apache/accumulo/server/fs/RandomVolumeChooser.java > f2eb2113cb848ed58ac5f41573c6ff2cde9b0a77 > server/base/src/main/java/org/apache/accumulo/server/fs/VolumeChooser.java > f523057b11a2dc42e82010675bb1ac8e3802f96d > server/base/src/main/java/org/apache/accumulo/server/fs/VolumeManager.java > 890651e92f4c34514cb839b7b9ee9d23ad55070a > > server/base/src/main/java/org/apache/accumulo/server/fs/VolumeManagerImpl.java > dc1be739b634d91992894f8f27c2d9c184bd98cd > server/base/src/main/java/org/apache/accumulo/server/fs/VolumeUtil.java > 877d01c2233cca086c1ac1539eb81cc282a7ceb4 > > server/base/src/main/java/org/apache/accumulo/server/util/TabletOperations.java > c0e1a9b991d61a4dbb127c74ae297f171434e7d5 > > server/base/src/test/java/org/apache/accumulo/server/fs/VolumeManagerImplTest.java > 582822a8ccbc398925a2184eed0b9d7fa853f9b4 > > Diff: https://reviews.apache.org/r/28873/diff/ > > > Testing > ------- > > Ran through VolumeManagerImplTest and VolumeChooserIT > > > Thanks, > > Sean Busbey > >
