Use a static function instead of embedding side-effects in the constructor
of an unrelated class.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit 85106bd9a9fb3be2c574df1a3aed6674e3951465)
To make bees more friendly to use with syslog/systemd, we add an option
to omit timestamps from the log output.
Signed-off-by: Kai Krakow <kai@kaishome.de>
This commit adds a simple getopt options parser to show help. This can
be used as a boilerplate for adding more options later.
Signed-off-by: Kai Krakow <kai@kaishome.de>
To install for different distributions, LIBEXEC_PREFIX can now be set.
It defaults to $(PREFIX)/usr/lib/bees as used in most common
distributions.
Local overrides are possible by setting variables in a "localconf" file
which will be included by the Makefile if it exists.
For some distributions you may want to set it to /usr/libexec or
/usr/libexec/bees.
Let's remove the CPUQuota example and instead give bees a share of
what's available.
128 CPU shares will give it about 12% max CPU under load, give it a
slight boost during startup to allow reading the hash table faster.
100 block shares will give it about 10% max disk bandwidht under load,
give it a slight boost during startup to allow reading the hash table
faster.
Then let's adjust the CPU and IO scheduler to prefer other processes.
This way bees runs completely in the background, barely noticable
during, e.g., gaming.
Explicitly set control-group kill mode, that is: try SIGTERM first, and
use SIGKILL after a timeout. This exactly defines how bees is running as
a child process within the frontend service starter. Not sure if bees cares
about signals but SIGTERM first seems cleaner. On the way, let bees restart
on abnormal termination.
After a few hundred subvol threads start running, the inode cache starts
to thrash, and the log gets spammed with messages of the form:
"open_root_nocache <subvolid>: <path>"
Ideally there would be some way to schedule work to minimize inode
thrashing. Until that gets done, just silence the messages for now.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
With many threads it is inconvenient to reassemble the elided parts of
the dedup src/dst and scan filenames output. Simply output them
unconditionally, and balance the line lengths.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
If we lose a race and open the wrong file, we will not retry with the
next path if the file we opened had incompatible flags. We need to keep
trying paths until we open the correct file or run out of paths.
Fix by moving the inode flag check after the checks for file identity.
Output attributes in hex to be consistent with other attribute error
messages.
There is no need to report root and file paths separately in the error
message for incompatible flags because we have confirmed the identity of
the file before the incompatible flag error is detected. Other messages
in this loop still output root path and file_path separately because
the identity of 'rv' is unknown at the time these messages are emitted.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
If you have a lot of or a few big nocow files (like vm images) which
contain a lot of potential deduplication candidates, bees becomes
incredibly slow running through a lot "invalid operation" exceptions.
Let's just skip over such files to get more bang for the buck. I did no
regression testing as this patch seems trivial (and I cannot imagine any
pitfalls either). The process progresses much faster for me now.
Keep track of the locking thread so we can see why we are deadlocked
in gdb.
Use a handle type for locks based on shared_ptr. Change the handle type
name to flush out any non-auto local variables.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit aa0b22d445664409c36503c6fd808bc49b6816d0)
This helps identify causes of the "same physical address in dedup"
exception.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit cc7b4f22b5df3a1f52d27060ee8a6a3352b8cd10)
BLOCK_SIZE_MIN_EXTENT_DEFRAG, BLOCK_SIZE_MIN_EXTENT_SPLIT, and others
are no longer used. Remove them.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit a3d7032edaf5fc584412d0dcf8773f1cafa8f2dc)
Add time spent in file create and copy operations to the stats.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit f01c20f97269083175a74d1a1fd3ebaced2d9560)
A BEESTRACE closure could throw an exception. Trap those so we don't
end up in terminate().
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit 59660cfc00b9ca233eeb1a7cdf6df34a45a2deba)
Reads can block indefinitely due to bugs, low io priority, or poor
storage performance. Record the block origin data in the thread state
so we can see which reads are problematic.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit f56f736d28970a0f03ee887a5bd5515cc749d413)
This lets us use more default constructors.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit 8a932a632ff4602a0357ed5fbcd3f86b6bc50283)
Use () instead of [] when the respective end of the byte range touches
the beginning or end of the file. Also omit the '0' at beginning of
file.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit 3023b7f57a3003242bc770bcfe55f666227680ff)
Use a different character to make it easier to search for bytenr ranges
in the logs.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit d43199e3d6e6469264eb10de8b0a783f8573e0e8)
This will allow the default size limit for cache objects to be changed
with impunity.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit 9daa51edaab44c02ce0917ff94b20683036d7594)
perf blames the SEARCH_V2 ioctl wrapper for a lot of time spent in malloc.
Use a thread_local buffer for ioctl results, and reuse it between runs.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
(cherry picked from commit e509210428951e645d33916694a17aed1950991d)
In gcc 7+ warning: implicit-fallthrough has been added
In some places fallthrough is expectable, disable warning
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
