On Mar 29, 2010 10:39 PM, "Andrew Purtell (JIRA)" <[email protected]> wrote: > > [stargate] FUSE module for mounting Stargate exported tablespaces > ----------------------------------------------------------------- > > Key: HBASE-2387 > URL: https://issues.apache.org/jira/browse/HBASE-2387 > Project: Hadoop HBase > Issue Type: New Feature > Reporter: Andrew Purtell > Assignee: Andrew Purtell > Priority: Minor > > > FUSE: http://fuse.sourceforge.net/ > > Create a FUSE translator that mounts Stargate exported tablespaces into the Linux filesystem namespace. Support Stargate when it is running in multiuser mode. Should run in either of two modes: > > 1) Map 1:1 the exported tablespace under the mount point. > > 2) Emulate a filesystem, like s3fs ( http://code.google.com/p/s3fs/wiki/FuseOverAmazon) > - Stargate multiget and multiput operations can help performance > - Translate paths under the mount point to row keys for good load spreading, {{/a/b/c/file.ext}} becomes {{file.ext/c/b/a}} > - Consider borrowing from Tom White's Hadoop S3 FS (HADOOP-574), and store file data as blocks. > -- After fetching the inode can stream all blocks in a Stargate multiget. This would support arbitrary file sizes. Otherwise there is a practical limit somewhere around 20-50 MB with default regionserver heaps. > -- So, {{file.ext/c/b/a}} gets the inode. Blocks would be keyed using the SHA-1 hash of their contents. > -- Because new writes produce new blocks with unique hashes, this is like a dedup filesystem. Use ICV to maintain use counters on blocks. > > -- > This message is automatically generated by JIRA. > - > You can reply to this email to add a comment to the issue online. > >
This looks like a very interesting project. Has there been any movement on this? Regards HASSAN
