bluesky.git
13 years agoBuild a quick storage library for accessing Windows Azure.
Michael Vrable [Wed, 23 Feb 2011 23:25:48 +0000 (15:25 -0800)]
Build a quick storage library for accessing Windows Azure.

This will be used by the Python cleaner, but that is not yet hooked up.

13 years agoRun both read, write, and mixed workloads.
Michael Vrable [Mon, 21 Feb 2011 04:41:52 +0000 (20:41 -0800)]
Run both read, write, and mixed workloads.

13 years agoSet up for benchmark runs with small reads/writes within larger files.
Michael Vrable [Mon, 21 Feb 2011 04:40:21 +0000 (20:40 -0800)]
Set up for benchmark runs with small reads/writes within larger files.

13 years agoMore reworking of microbenchmark handling of reads/writes and file layout.
Michael Vrable [Sun, 20 Feb 2011 04:28:46 +0000 (20:28 -0800)]
More reworking of microbenchmark handling of reads/writes and file layout.

13 years agoChange how mixed read/write workloads are done in mixedbench
Michael Vrable [Sun, 20 Feb 2011 03:30:49 +0000 (19:30 -0800)]
Change how mixed read/write workloads are done in mixedbench

Split reads and writes into separate threads, instead of mixing operations
within a single thread.  This does not allow arbitrary mixes any longer,
since the ratios are quantized based on the number of total threads.

13 years agoCommit script to parse microbenchmark results.
Michael Vrable [Mon, 14 Feb 2011 23:06:03 +0000 (15:06 -0800)]
Commit script to parse microbenchmark results.

13 years agoDelete old benchmark execution script. It is obsolete.
Michael Vrable [Mon, 14 Feb 2011 19:15:36 +0000 (11:15 -0800)]
Delete old benchmark execution script.  It is obsolete.

13 years agoUpdate benchmark script to run a few other cases.
Michael Vrable [Mon, 14 Feb 2011 07:41:10 +0000 (23:41 -0800)]
Update benchmark script to run a few other cases.

13 years agoAdd a "native" target to run the kernel NFS server.
Michael Vrable [Mon, 14 Feb 2011 05:57:38 +0000 (21:57 -0800)]
Add a "native" target to run the kernel NFS server.

13 years agoFix standard deviation estimation.
Michael Vrable [Mon, 14 Feb 2011 05:39:56 +0000 (21:39 -0800)]
Fix standard deviation estimation.

Properly reset statistics counters between intervals.

13 years agoMore benchmark changes.
Michael Vrable [Mon, 14 Feb 2011 05:35:36 +0000 (21:35 -0800)]
More benchmark changes.

13 years agoBenchmark fixups.
Michael Vrable [Mon, 14 Feb 2011 05:30:35 +0000 (21:30 -0800)]
Benchmark fixups.

13 years agoSpread test files for mixedbench across multiple subdirectories.
Michael Vrable [Mon, 14 Feb 2011 05:12:52 +0000 (21:12 -0800)]
Spread test files for mixedbench across multiple subdirectories.

13 years agoReduce effective memory size on benchmark client.
Michael Vrable [Mon, 14 Feb 2011 03:42:38 +0000 (19:42 -0800)]
Reduce effective memory size on benchmark client.

Lock memory to reduce the amount available for the NFS file cache, so
that requests will go the proxy.

13 years agoSplit benchmark file system setup and execution into separate steps.
Michael Vrable [Mon, 14 Feb 2011 03:01:14 +0000 (19:01 -0800)]
Split benchmark file system setup and execution into separate steps.

13 years agoAllow interval at which benchmark results are printed to be controlled.
Michael Vrable [Sun, 13 Feb 2011 20:57:13 +0000 (12:57 -0800)]
Allow interval at which benchmark results are printed to be controlled.

13 years agoWork on automatically running benchmarks.
Michael Vrable [Sun, 13 Feb 2011 20:34:00 +0000 (12:34 -0800)]
Work on automatically running benchmarks.

13 years agoMinor fix to benchmark running script.
Michael Vrable [Thu, 10 Feb 2011 18:40:47 +0000 (10:40 -0800)]
Minor fix to benchmark running script.

13 years agoAdd script to clean up files from a benchmarking run with nfsproxy.
root [Thu, 10 Feb 2011 00:49:49 +0000 (16:49 -0800)]
Add script to clean up files from a benchmarking run with nfsproxy.

13 years agoAdd script to delete state from S3 for benchmarking cleanup.
Michael Vrable [Thu, 10 Feb 2011 00:31:51 +0000 (16:31 -0800)]
Add script to delete state from S3 for benchmarking cleanup.

13 years agoAdd script for stopping a running nfsproxy
root [Thu, 10 Feb 2011 00:27:53 +0000 (16:27 -0800)]
Add script for stopping a running nfsproxy

13 years agoAdd script to run a simple microbenchmark.
Michael Vrable [Wed, 9 Feb 2011 23:26:54 +0000 (15:26 -0800)]
Add script to run a simple microbenchmark.

13 years agoAdd setup script for starting the proxy for benchmarking.
root [Wed, 9 Feb 2011 23:23:36 +0000 (15:23 -0800)]
Add setup script for starting the proxy for benchmarking.

13 years agoA few more updates to the mixed read/write microbenchmark.
Michael Vrable [Mon, 7 Feb 2011 18:02:04 +0000 (10:02 -0800)]
A few more updates to the mixed read/write microbenchmark.

13 years agoChanges to output formattng of mixedbench.
Michael Vrable [Mon, 7 Feb 2011 15:22:44 +0000 (07:22 -0800)]
Changes to output formattng of mixedbench.

13 years agoAdd a new more general-purpose microbenchmark tool in C.
Michael Vrable [Mon, 7 Feb 2011 13:58:01 +0000 (05:58 -0800)]
Add a new more general-purpose microbenchmark tool in C.

13 years agoFix a potential race between creating and destroying mmaped strings
Michael Vrable [Thu, 3 Feb 2011 00:07:58 +0000 (16:07 -0800)]
Fix a potential race between creating and destroying mmaped strings

Potentially, we might try to create a new reference to a memory-mapped
region while another thread unreferences and frees that region.  Ensure
when freeing the mapping that there really are no mappings (doube-check
after taking the lock).

13 years agoFix a memory leak.
Michael Vrable [Wed, 2 Feb 2011 18:01:00 +0000 (10:01 -0800)]
Fix a memory leak.

13 years agoFix use-after-free in network address lookups.
Michael Vrable [Wed, 2 Feb 2011 17:30:47 +0000 (09:30 -0800)]
Fix use-after-free in network address lookups.

13 years agoUpdate simplestore to use a standard port number.
Michael Vrable [Fri, 28 Jan 2011 23:48:46 +0000 (15:48 -0800)]
Update simplestore to use a standard port number.

13 years agoAdd simplestore server to build.
Michael Vrable [Fri, 28 Jan 2011 23:36:35 +0000 (15:36 -0800)]
Add simplestore server to build.

13 years agoAdd a connection pool to the simplesever client
Michael Vrable [Mon, 24 Jan 2011 01:12:01 +0000 (17:12 -0800)]
Add a connection pool to the simplesever client

Re-use TCP connections across requests instead of closing the connection
each time.

13 years agoStart work on a new cleaner backend
Michael Vrable [Mon, 24 Jan 2011 00:52:52 +0000 (16:52 -0800)]
Start work on a new cleaner backend

Begin adding support for the simplestore backend to the cleaner code.  This
is not yet tested and so probably needs a bit more work.

13 years agoRename filestore -> simplestore
Michael Vrable [Fri, 21 Jan 2011 06:12:53 +0000 (22:12 -0800)]
Rename filestore -> simplestore

This is more consistent with the naming in the rest of the BlueSky code.

13 years agoEnable range requests in the simple storage backend
Michael Vrable [Fri, 21 Jan 2011 01:55:31 +0000 (17:55 -0800)]
Enable range requests in the simple storage backend

13 years agoFix off-by-one error in the BlueSky simple storage backend.
Michael Vrable [Fri, 21 Jan 2011 00:34:59 +0000 (16:34 -0800)]
Fix off-by-one error in the BlueSky simple storage backend.

One extra byte of data was being included into the data returned, leading
to data corruption.  Fix this.

13 years agoCheck in a new very simple client/server storage protocol implementation.
Michael Vrable [Tue, 18 Jan 2011 05:35:38 +0000 (21:35 -0800)]
Check in a new very simple client/server storage protocol implementation.

This is meant for local testing; the server writes data to a local disk
without synchronization so data isn't guaranteed to be durable but this
should provide better performance for benchmarking (where we care about the
BlueSky performance and not the storage sever itself).

13 years agoCommit a basic but functional online cleaner implementation.
Michael Vrable [Fri, 10 Dec 2010 23:02:15 +0000 (15:02 -0800)]
Commit a basic but functional online cleaner implementation.

The cleaner needn't be aware of parallelism; the proxy will handle merging
of data.

13 years agoFixes and debugging assertions.
Michael Vrable [Fri, 10 Dec 2010 19:58:25 +0000 (11:58 -0800)]
Fixes and debugging assertions.

13 years agoFix a race condition in bluesky_mmap_unref.
Michael Vrable [Fri, 10 Dec 2010 17:12:50 +0000 (09:12 -0800)]
Fix a race condition in bluesky_mmap_unref.

It turned out that the old code had a race--between decrementing and
testing the reference count and acquiring the lock, another thread could
potentially acquire a reference, release the reference, and then unmap the
data.  This still left the reference count as zero, so a second unmap was
attempted.  Now, use mmap->addr to detect if the unmap needs to be done or
not which should eliminate this race.

13 years agoMostly implement inode merging for the in-proxy cleaner component.
Michael Vrable [Fri, 10 Dec 2010 02:26:15 +0000 (18:26 -0800)]
Mostly implement inode merging for the in-proxy cleaner component.

This doesn't yet ensure modifications are serialized out again later.

13 years agoFix to the cleaner when writing out a new inode map.
Michael Vrable [Thu, 9 Dec 2010 20:12:04 +0000 (12:12 -0800)]
Fix to the cleaner when writing out a new inode map.

13 years agoAdd code in the proxy cleaner component to iterate over new inodes.
Michael Vrable [Thu, 9 Dec 2010 06:32:17 +0000 (22:32 -0800)]
Add code in the proxy cleaner component to iterate over new inodes.

For the moment we actually iterate over all inodes in the cleaned
checkpoint, but later can restrict to just those that are needed.  Actually
merging inode changes also still needs to be implemented.

13 years agoIn-progress commit of online cleaner.
Michael Vrable [Tue, 7 Dec 2010 05:40:30 +0000 (21:40 -0800)]
In-progress commit of online cleaner.

This adds some code to check the cleaner log when the proxy is launched,
but doesn't yet merge any data.

13 years agoRework the checkpoint record format to include a version vector.
Michael Vrable [Mon, 6 Dec 2010 04:46:49 +0000 (20:46 -0800)]
Rework the checkpoint record format to include a version vector.

This will be used for keeping track of whether we have incorporated changes
made by the cleaner or not, and is a first step (along with having the
clenaer write to the a separate set of logs) to making a functional online
cleaner.

13 years agoTry to avoid accessing profiling objects after they are freed.
Michael Vrable [Thu, 2 Dec 2010 19:39:56 +0000 (11:39 -0800)]
Try to avoid accessing profiling objects after they are freed.

13 years agoWrite profile data if and only if requested.
Michael Vrable [Tue, 30 Nov 2010 04:59:14 +0000 (20:59 -0800)]
Write profile data if and only if requested.

13 years agoAllow profile results to be written to a file.
Michael Vrable [Tue, 30 Nov 2010 04:57:27 +0000 (20:57 -0800)]
Allow profile results to be written to a file.

13 years agoReduce debugging messages in non-verbose mode.
Michael Vrable [Mon, 29 Nov 2010 04:29:33 +0000 (20:29 -0800)]
Reduce debugging messages in non-verbose mode.

13 years agoMore work on request profiling.
Michael Vrable [Mon, 29 Nov 2010 00:21:36 +0000 (16:21 -0800)]
More work on request profiling.

13 years agoAdd locking, thread-ID tracking to profiling.
Michael Vrable [Tue, 23 Nov 2010 23:48:41 +0000 (15:48 -0800)]
Add locking, thread-ID tracking to profiling.

13 years agoTrack requests that initiate inode fetches.
Michael Vrable [Tue, 23 Nov 2010 18:27:31 +0000 (10:27 -0800)]
Track requests that initiate inode fetches.

13 years agoStart to add request time profiling.
Michael Vrable [Tue, 23 Nov 2010 17:53:18 +0000 (09:53 -0800)]
Start to add request time profiling.

Allow a "profile" object to be created when a request is received, and
track the time at which various events occur when handling the request.

13 years agoAdd a lookup_last method to the multi-store backend.
Michael Vrable [Thu, 18 Nov 2010 03:39:00 +0000 (19:39 -0800)]
Add a lookup_last method to the multi-store backend.

13 years agoUpdates to the workload generator to perform a parameter sweep.
Michael Vrable [Wed, 17 Nov 2010 18:12:56 +0000 (10:12 -0800)]
Updates to the workload generator to perform a parameter sweep.

13 years agoImplement very basic grouped fetches of objects from the cloud.
Michael Vrable [Fri, 12 Nov 2010 19:41:46 +0000 (11:41 -0800)]
Implement very basic grouped fetches of objects from the cloud.

Add an item prefetch call, which for now just collects together items that
have been prefetched and when one of them is actually fetched, a range
request is sent that will cover all the objects.  Thus this doesn't improve
the time to fetch the first object (actually it will hurt), it does arrange
to have objects fetched in groups where possible which reduces the total
number of operations and the time to get subsequent objects.

13 years agoAdd a prefetch method. At the moment it is a no-op.
Michael Vrable [Fri, 12 Nov 2010 03:12:47 +0000 (19:12 -0800)]
Add a prefetch method.  At the moment it is a no-op.

13 years agoMove benchmark results elsewhere, out of the repository.
Michael Vrable [Thu, 11 Nov 2010 23:34:42 +0000 (15:34 -0800)]
Move benchmark results elsewhere, out of the repository.

13 years agoReturn failure code when an S3 put operation fails.
Michael Vrable [Tue, 9 Nov 2010 00:41:42 +0000 (16:41 -0800)]
Return failure code when an S3 put operation fails.

Previously, we were indicating success even when that wasn't true, leading
to errors later when we went to read data we hadn't written.  Now, the
caller can retry the put operation if needed.

13 years agoDrop a verbose debugging message.
Michael Vrable [Thu, 4 Nov 2010 23:59:55 +0000 (16:59 -0700)]
Drop a verbose debugging message.

14 years agoUpdate disk cache usage tracking to handle sparse files.
Michael Vrable [Thu, 4 Nov 2010 22:09:54 +0000 (15:09 -0700)]
Update disk cache usage tracking to handle sparse files.

14 years agoBugfix in partial log fetching.
Michael Vrable [Wed, 3 Nov 2010 23:38:03 +0000 (16:38 -0700)]
Bugfix in partial log fetching.

Do not bother mapping the file until the data is available, otherwise the
mapping may be deleted from under us while we are waiting.

14 years agoImplement fetching of cloud log items via range requests.
Michael Vrable [Wed, 3 Nov 2010 21:35:07 +0000 (14:35 -0700)]
Implement fetching of cloud log items via range requests.

This still needs a bit more work for stability, checking for leaks, etc.,
but implements the basic functionality needed to selectively retrieve just
the needed byte ranges out of cloud log segments to download individual log
items.

14 years agoConvert rangeset implementation from a hashtable to GSequence.
Michael Vrable [Sun, 31 Oct 2010 21:53:05 +0000 (14:53 -0700)]
Convert rangeset implementation from a hashtable to GSequence.

This gives log(N) performance, but allows us to easily tell if a request
falls in the middle of an object and check for overlaps on inserts (though
that part isn't implemented yet).

14 years agoImplement a rangeset data type and use it to track items in log segments.
Michael Vrable [Sat, 30 Oct 2010 00:40:14 +0000 (17:40 -0700)]
Implement a rangeset data type and use it to track items in log segments.

The range set can be used to track which byte ranges in a file correspond
to valid objects, and so can be used in the cloud log code to check that
1) objects are actually available if partial log fetching is implemented,
and 2) that objects being fetched have actually been authenticated (if
needed).

This isn't fully working yet.  The range sets should be changed from a hash
table to a sequence, since some lookups in the cloud log code are into the
middle of an object (to skip the header and remap the data), and that needs
to be handled properly.

14 years agoAdd support for byterange requests in the storage layer.
Michael Vrable [Tue, 26 Oct 2010 16:27:56 +0000 (09:27 -0700)]
Add support for byterange requests in the storage layer.

14 years agoRename private structures to remove leading underscores.
Michael Vrable [Tue, 26 Oct 2010 14:38:36 +0000 (07:38 -0700)]
Rename private structures to remove leading underscores.

This is a cosmetic change, but should make debugging and looking up
structure definitions easier.

14 years agoMerge git+ssh://c09-44.sysnet.ucsd.edu/scratch/bluesky
Michael Vrable [Mon, 25 Oct 2010 05:43:24 +0000 (22:43 -0700)]
Merge git+ssh://c09-44.sysnet.ucsd.edu/scratch/bluesky

14 years agoUpdates to the workload generator and some results from runs.
Michael Vrable [Mon, 25 Oct 2010 05:15:41 +0000 (22:15 -0700)]
Updates to the workload generator and some results from runs.

14 years agoRemove debugging messages when decrypting cloud log segments.
Michael Vrable [Thu, 21 Oct 2010 21:28:56 +0000 (14:28 -0700)]
Remove debugging messages when decrypting cloud log segments.

14 years agoFix Amazon S3 store_lookup_last implementation.
Michael Vrable [Thu, 21 Oct 2010 20:07:18 +0000 (13:07 -0700)]
Fix Amazon S3 store_lookup_last implementation.

Amazon will return directory listings in chunks.  Be sure to repeat list
calls until we find the actual end of the directory listing.

14 years agoFix a memory leak resulting from the in-memory inode map.
Michael Vrable [Thu, 21 Oct 2010 05:34:45 +0000 (22:34 -0700)]
Fix a memory leak resulting from the in-memory inode map.

Actually release the reference to the old version of an inode when creating
a new one.

14 years agoAdd a more aggressive mode of cleaning up disk space.
Michael Vrable [Tue, 19 Oct 2010 21:14:50 +0000 (14:14 -0700)]
Add a more aggressive mode of cleaning up disk space.

If enough space cannot be deleted in the disk cache, drop nearly all clean
data from memory so that most disk cache files are unreferenced, then make
another pass to delete log/cache files.

14 years agoMove disk cache cleanup code to cache.c from log.c
Michael Vrable [Tue, 19 Oct 2010 20:43:58 +0000 (13:43 -0700)]
Move disk cache cleanup code to cache.c from log.c

14 years agoA few more minor fixes cleaning up the cloud log state counting.
Michael Vrable [Tue, 19 Oct 2010 02:01:21 +0000 (19:01 -0700)]
A few more minor fixes cleaning up the cloud log state counting.

14 years agoFix up cloud log state counting.
Michael Vrable [Tue, 19 Oct 2010 01:05:50 +0000 (18:05 -0700)]
Fix up cloud log state counting.

Counts of cloud log items in various states were not being kept up to date,
so that the counts were often wrong.  Fix a few cases to make the counts
more accurate.

14 years agoIgnore lockmem executable.
Michael Vrable [Tue, 19 Oct 2010 00:22:15 +0000 (17:22 -0700)]
Ignore lockmem executable.

14 years agoThe signature on log items should not extend to the pointer locations.
Michael Vrable [Mon, 18 Oct 2010 21:48:57 +0000 (14:48 -0700)]
The signature on log items should not extend to the pointer locations.

This allows the cleaner to rewrite the pointers without invalidating the
signature.

14 years agoAdd timeout on cleaner S3 retry.
Michael Vrable [Mon, 18 Oct 2010 21:48:47 +0000 (14:48 -0700)]
Add timeout on cleaner S3 retry.

14 years agoAdd retries to the S3 backend in the cleaner.
Michael Vrable [Mon, 18 Oct 2010 21:41:44 +0000 (14:41 -0700)]
Add retries to the S3 backend in the cleaner.

14 years agoSmall utility to use free memory in a system.
Michael Vrable [Mon, 18 Oct 2010 20:03:15 +0000 (13:03 -0700)]
Small utility to use free memory in a system.

For benchmarking, to take memory away from the page cache.

14 years agoSupport encrypted log items in the cleaner.
Michael Vrable [Mon, 18 Oct 2010 04:40:44 +0000 (21:40 -0700)]
Support encrypted log items in the cleaner.

14 years agoDelete dead code.
Michael Vrable [Sun, 17 Oct 2010 23:18:23 +0000 (16:18 -0700)]
Delete dead code.

14 years agoWhen decrypting a log item also clear out the IV field.
Michael Vrable [Sun, 17 Oct 2010 23:17:40 +0000 (16:17 -0700)]
When decrypting a log item also clear out the IV field.

Not really needed, but this way the IV field being zero should be
synonymous with an unencrypted log item.

14 years agoAdd per-item encryption/authentication to the cloud log storage.
Michael Vrable [Sun, 17 Oct 2010 20:40:20 +0000 (13:40 -0700)]
Add per-item encryption/authentication to the cloud log storage.

We should generate encrypted data and decrypt it again on read, but we
don't yet enforce only reading data which passes the integrity check.

14 years agoAllow S3 bucket used for BlueSky storage to be specified.
Michael Vrable [Fri, 15 Oct 2010 18:01:45 +0000 (11:01 -0700)]
Allow S3 bucket used for BlueSky storage to be specified.

14 years agoWork on a simple workload generator for benchmarking.
Michael Vrable [Mon, 11 Oct 2010 18:35:17 +0000 (11:35 -0700)]
Work on a simple workload generator for benchmarking.

14 years agoStart adding in selective encryption of cloud log items.
Michael Vrable [Fri, 8 Oct 2010 23:57:35 +0000 (16:57 -0700)]
Start adding in selective encryption of cloud log items.

Not fully hooked in, but some of the logic for encryption is written now.

14 years agoAnother logging fix.
Michael Vrable [Mon, 27 Sep 2010 23:30:13 +0000 (16:30 -0700)]
Another logging fix.

14 years agoFix for journal committing.
Michael Vrable [Mon, 27 Sep 2010 20:28:57 +0000 (13:28 -0700)]
Fix for journal committing.

Sometimes we could previously, under load, report that journal items were
committed when they were not.  Try to track the uncommitted state more
carefully now.

14 years agoImplement handling of unstable data in WRITE/COMMIT nfs procedures.
Michael Vrable [Mon, 27 Sep 2010 17:57:59 +0000 (10:57 -0700)]
Implement handling of unstable data in WRITE/COMMIT nfs procedures.

Before all NFS operations were synchronous; now we support asynchronous
commits of file writes which might improve performance.

14 years agoUpdated microbenchmarking script.
Michael Vrable [Mon, 27 Sep 2010 05:55:19 +0000 (22:55 -0700)]
Updated microbenchmarking script.

14 years agoStarting work on scripts to automate benchmarking.
Michael Vrable [Wed, 22 Sep 2010 20:52:28 +0000 (13:52 -0700)]
Starting work on scripts to automate benchmarking.

14 years agoImprove cleaner performance.
Michael Vrable [Wed, 22 Sep 2010 18:47:17 +0000 (11:47 -0700)]
Improve cleaner performance.

When reading an object in, seek to and read just the needed bytes instead
of the entire log segment.  Improves performance significantly.

14 years agoRemove obsolete file.
Michael Vrable [Mon, 20 Sep 2010 22:09:12 +0000 (15:09 -0700)]
Remove obsolete file.

14 years agoUse a thread pool for inode fetches, and remove some debugging output.
Michael Vrable [Mon, 20 Sep 2010 15:56:01 +0000 (08:56 -0700)]
Use a thread pool for inode fetches, and remove some debugging output.

14 years agoRemove an extraneous mutex unlock.
Michael Vrable [Mon, 20 Sep 2010 15:55:03 +0000 (08:55 -0700)]
Remove an extraneous mutex unlock.

I'm surprised that this didn't cause trouble earlier; it seems that
unlocking an unlocked mutex raises no errors (but under heavy load, when
the mutex is locked by another thread then unlocking it can cause trouble).

14 years agoMore fixes for memory management.
Michael Vrable [Mon, 20 Sep 2010 03:07:27 +0000 (20:07 -0700)]
More fixes for memory management.

This should allow memory and cache space to be reclaimed by not keeping
items pinned in memory, finally.  Still needs a bit more testing.

14 years agoWork on reducing memory pinned by the inode map.
Michael Vrable [Sun, 19 Sep 2010 22:22:02 +0000 (15:22 -0700)]
Work on reducing memory pinned by the inode map.

14 years agoAdd cleaner option to rewrite and compact all inodes (but not all data).
Michael Vrable [Sun, 19 Sep 2010 18:31:15 +0000 (11:31 -0700)]
Add cleaner option to rewrite and compact all inodes (but not all data).