I plan to rename ".sanpshot" in HBase to ".hbase-sanpshot"
Please suggest better name in future correspondence. Thanks On Mon, Apr 15, 2013 at 8:12 PM, Ted Yu <yuzhih...@gmail.com> wrote: > Lars: > I will go ahead and log an HBase JIRA, tomorrow morning. > > This hopefully would give people enough time to respond. > > Cheers > > > On Mon, Apr 15, 2013 at 8:00 PM, lars hofhansl <la...@apache.org> wrote: > >> OK. Let's try to fix that quickly, so that I can release HBase 0.94.7. >> >> -- Lars >> >> >> >> ________________________________ >> From: Ted Yu <yuzhih...@gmail.com> >> To: d...@hbase.apache.org; hdfs-dev@hadoop.apache.org >> Sent: Monday, April 15, 2013 7:13 PM >> Subject: collision in the naming of '.snapshot' directory between hdfs >> snapshot and hbase snapshot >> >> >> Hi, >> This afternoon Huned ad I discovered an issue while playing with HBase >> Snapshots on top of Hadoop's Snapshot branch ( >> http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2802/). >> >> HDFS (built from HDFS-2802 branch) doesn't allow paths with .snapshot as a >> component while HBase tries to create paths with .snapshot as a component. >> This leads to issues in HBase, and one of HDFS or HBase needs to give up >> the .snapshot reserved keyword. HBase released Snapshots feature in 0.94.6 >> (quite recently) and it may not be too late to change HBase to use a >> different path component in an upcoming new release. >> >> In HBase these path names are not user visible. If there is a deployment >> of >> 0.94.6, one could provide a migration tool that renames .snapshot to >> .hbase-snapshot or something to be able to move to the Snapshot release of >> Hadoop. On the other hand, .snapshot in HDFS is a user visible name and is >> a convention that is used by many file systems. It's a matter of >> familiarity with such path names that would help users in using HDFS >> snapshots. >> >> I am including the hdfs-dev in this email. Would appreciate if we could >> work together and come up with a solution. >> >> You can find sample output from hdfs command here: >> http://pastebin.com/bBqR4Fvr >> >> Cheers >> > >
