<feed xmlns='http://www.w3.org/2005/Atom'>
<title>glusterfs.git/xlators/features/bit-rot/src/bitd, branch v9dev</title>
<subtitle></subtitle>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/'/>
<entry>
<title>bitrot: Make number of signer threads configurable</title>
<updated>2020-02-07T06:30:19+00:00</updated>
<author>
<name>Kotresh HR</name>
<email>khiremat@redhat.com</email>
</author>
<published>2020-02-03T12:40:17+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=8fad76650bd85463708f59d2518f5b764ae4c702'/>
<id>8fad76650bd85463708f59d2518f5b764ae4c702</id>
<content type='text'>
The number of signing process threads (glfs_brpobj)
is set to 4 by default. The recommendation is to set
it to number of cores available. This patch makes it
configurable as follows

gluster vol bitrot &lt;volname&gt; signer-threads &lt;count&gt;

fixes: bz#1797869
Change-Id: Ia883b3e5e34e0bc8d095243508d320c9c9c58adc
Signed-off-by: Kotresh HR &lt;khiremat@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The number of signing process threads (glfs_brpobj)
is set to 4 by default. The recommendation is to set
it to number of cores available. This patch makes it
configurable as follows

gluster vol bitrot &lt;volname&gt; signer-threads &lt;count&gt;

fixes: bz#1797869
Change-Id: Ia883b3e5e34e0bc8d095243508d320c9c9c58adc
Signed-off-by: Kotresh HR &lt;khiremat@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>xlator/bit-rot: structure logging</title>
<updated>2020-02-04T06:33:15+00:00</updated>
<author>
<name>yatipadia</name>
<email>ypadia@redhat.com</email>
</author>
<published>2019-12-11T14:24:45+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=ec2c7ddd6739afacc871a5df4c348b4c58cf153e'/>
<id>ec2c7ddd6739afacc871a5df4c348b4c58cf153e</id>
<content type='text'>
convert all gf_msg() to gf_smsg()

Change-Id: Ifa45b5089f83ddfcf69132bb8d9c0dc6d012464b
Updates: #657
Signed-off-by: yatipadia &lt;ypadia@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
convert all gf_msg() to gf_smsg()

Change-Id: Ifa45b5089f83ddfcf69132bb8d9c0dc6d012464b
Updates: #657
Signed-off-by: yatipadia &lt;ypadia@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>multiple xlators: reduce key length</title>
<updated>2020-01-14T17:11:22+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2019-12-09T19:28:00+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=9969d1dc2a3e815b161ce8a3dc5d08f84cfe011f'/>
<id>9969d1dc2a3e815b161ce8a3dc5d08f84cfe011f</id>
<content type='text'>
In many cases, we were freely allocating long keys with no need.
Smaller char arrays are just fine almost anywhere, so just went ahead
and looked where they we can use smaller ones.

In some cases, annotated the functions as static and the prefixes
passed as const as it was easier to read and understand.

Where relevant, converted the dict functions to use known key length.

Change-Id: I882ab33ea20d90b63278336cd1370c09ffdab7f2
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In many cases, we were freely allocating long keys with no need.
Smaller char arrays are just fine almost anywhere, so just went ahead
and looked where they we can use smaller ones.

In some cases, annotated the functions as static and the prefixes
passed as const as it was easier to read and understand.

Where relevant, converted the dict functions to use known key length.

Change-Id: I882ab33ea20d90b63278336cd1370c09ffdab7f2
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>multiple files: another attempt to remove includes</title>
<updated>2019-06-14T16:50:32+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2019-06-09T10:31:31+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=0a6fe8551ac9807a8b6ad62241ec8048cf9f9025'/>
<id>0a6fe8551ac9807a8b6ad62241ec8048cf9f9025</id>
<content type='text'>
There are many include statements that are not needed.
A previous more ambitious attempt failed because of *BSD plafrom
(see https://review.gluster.org/#/c/glusterfs/+/21929/ )

Now trying a more conservative reduction.
It does not solve all circular deps that we have, but it
does reduce some of them. There is just too much to handle
reasonably (dht-common.h includes dht-lock.h which includes
dht-common.h ...), but it does reduce the overall number of lines
of include we need to look at in the future to understand and fix
the mess later one.

Change-Id: I550cd001bdefb8be0fe67632f783c0ef6bee3f9f
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There are many include statements that are not needed.
A previous more ambitious attempt failed because of *BSD plafrom
(see https://review.gluster.org/#/c/glusterfs/+/21929/ )

Now trying a more conservative reduction.
It does not solve all circular deps that we have, but it
does reduce some of them. There is just too much to handle
reasonably (dht-common.h includes dht-lock.h which includes
dht-common.h ...), but it does reduce the overall number of lines
of include we need to look at in the future to understand and fix
the mess later one.

Change-Id: I550cd001bdefb8be0fe67632f783c0ef6bee3f9f
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>features/bit-rot: Unconditionally sign the files during oneshot crawl</title>
<updated>2019-04-25T05:19:41+00:00</updated>
<author>
<name>Raghavendra Bhat</name>
<email>raghavendra@redhat.com</email>
</author>
<published>2019-03-11T16:16:50+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=647e2d3a9fbe36f2fbf062feda53b7cb6aa4830b'/>
<id>647e2d3a9fbe36f2fbf062feda53b7cb6aa4830b</id>
<content type='text'>
Currently bit-rot feature has an issue with disabling and reenabling it
on the same volume. Consider enabling bit-rot detection which goes on to
crawl and sign all the files present in the volume. Then some files are
modified and the bit-rot daemon goes on to sign the modified files with
the correct signature. Now, disable bit-rot feature. While, signing and
scrubbing are not happening, previous checksums of the files continue to
exist as extended attributes. Now, if some files with checksum xattrs get
modified, they are not signed with new signature as the feature is off.

At this point, if the feature is enabled again, the bit rot daemon will
go and sign those files which does not have any bit-rot specific xattrs
(i.e. those files which were created after bit-rot was disabled). Whereas
the files with bit-rot xattrs wont get signed with proper new checksum.
At this point if scrubber runs, it finds the on disk checksum and the actual
checksum of the file to be different (because the file got modified) and
marks the file as corrupted.

FIX:

The fix is to unconditionally sign the files when the bit-rot daemon
comes up (instead of skipping the files with bit-rot xattrs).

Change-Id: Iadfb47dd39f7e2e77f22d549a4a07a385284f4f5
fixes: bz#1700078
Signed-off-by: Raghavendra Bhat &lt;raghavendra@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Currently bit-rot feature has an issue with disabling and reenabling it
on the same volume. Consider enabling bit-rot detection which goes on to
crawl and sign all the files present in the volume. Then some files are
modified and the bit-rot daemon goes on to sign the modified files with
the correct signature. Now, disable bit-rot feature. While, signing and
scrubbing are not happening, previous checksums of the files continue to
exist as extended attributes. Now, if some files with checksum xattrs get
modified, they are not signed with new signature as the feature is off.

At this point, if the feature is enabled again, the bit rot daemon will
go and sign those files which does not have any bit-rot specific xattrs
(i.e. those files which were created after bit-rot was disabled). Whereas
the files with bit-rot xattrs wont get signed with proper new checksum.
At this point if scrubber runs, it finds the on disk checksum and the actual
checksum of the file to be different (because the file got modified) and
marks the file as corrupted.

FIX:

The fix is to unconditionally sign the files when the bit-rot daemon
comes up (instead of skipping the files with bit-rot xattrs).

Change-Id: Iadfb47dd39f7e2e77f22d549a4a07a385284f4f5
fixes: bz#1700078
Signed-off-by: Raghavendra Bhat &lt;raghavendra@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Multiple files: reduce work while under lock.</title>
<updated>2019-01-29T09:27:22+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2018-12-27T16:56:16+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=c7d1aee76d5713d1f337ab1c831c0ed74e4676e1'/>
<id>c7d1aee76d5713d1f337ab1c831c0ed74e4676e1</id>
<content type='text'>
Mostly, unlock before logging.
In some cases, moved different code that was not needed
to be under lock (for example, taking time, or malloc'ing)
to be executed before taking the lock.

Note: logging might be slightly less accurate in order, since it may
not be done now under the lock, so order of logs is racy. I think
it's a reasonable compromise.

Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;

Change-Id: I2438710016afc9f4f62a176ef1a0d3ed793b4f89
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Mostly, unlock before logging.
In some cases, moved different code that was not needed
to be under lock (for example, taking time, or malloc'ing)
to be executed before taking the lock.

Note: logging might be slightly less accurate in order, since it may
not be done now under the lock, so order of logs is racy. I think
it's a reasonable compromise.

Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;

Change-Id: I2438710016afc9f4f62a176ef1a0d3ed793b4f89
</pre>
</div>
</content>
</entry>
<entry>
<title>multiple-files: clang-scan fixes</title>
<updated>2018-12-31T06:45:17+00:00</updated>
<author>
<name>Amar Tumballi</name>
<email>amarts@redhat.com</email>
</author>
<published>2018-12-28T04:26:20+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=63088d8225df025e03a0ea0a0d8fdc3e8e9b9b08'/>
<id>63088d8225df025e03a0ea0a0d8fdc3e8e9b9b08</id>
<content type='text'>
updates: bz#1622665
Change-Id: I9f3a75ed9be3d90f37843a140563c356830ef945
Signed-off-by: Amar Tumballi &lt;amarts@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
updates: bz#1622665
Change-Id: I9f3a75ed9be3d90f37843a140563c356830ef945
Signed-off-by: Amar Tumballi &lt;amarts@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>write-behind/bit-rot: fix identifier</title>
<updated>2018-12-11T06:43:38+00:00</updated>
<author>
<name>rishubhjain</name>
<email>rishubhjain47@gmail.com</email>
</author>
<published>2018-12-10T18:04:13+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=08adbfb5d2edf9dc01ecc2cf2ca5eccb320b8721'/>
<id>08adbfb5d2edf9dc01ecc2cf2ca5eccb320b8721</id>
<content type='text'>
Rename the identifiers, bit-rot-server to bit-rot in bit-rot.c &amp; write-ahead to
write-behind in write-behind.c to ensure GD2 understands the options

Change-Id: Id271ae97de2e54f4e30174482c4e1fb6afc728d3
Fixes: #164
Signed-off-by: rishubhjain &lt;rishubhjain47@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Rename the identifiers, bit-rot-server to bit-rot in bit-rot.c &amp; write-ahead to
write-behind in write-behind.c to ensure GD2 understands the options

Change-Id: Id271ae97de2e54f4e30174482c4e1fb6afc728d3
Fixes: #164
Signed-off-by: rishubhjain &lt;rishubhjain47@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>all: add xlator_api to many translators</title>
<updated>2018-12-06T07:54:28+00:00</updated>
<author>
<name>Amar Tumballi</name>
<email>amarts@redhat.com</email>
</author>
<published>2018-11-28T04:35:39+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=340e58f9b3bcdfe4314da65e592dcd5c2daf6fd9'/>
<id>340e58f9b3bcdfe4314da65e592dcd5c2daf6fd9</id>
<content type='text'>
Fixes: #164
Change-Id: I93ad6f0232a1dc534df099059f69951e1339086f
Signed-off-by: Amar Tumballi &lt;amarts@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixes: #164
Change-Id: I93ad6f0232a1dc534df099059f69951e1339086f
Signed-off-by: Amar Tumballi &lt;amarts@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>libglusterfs: Move devel headers under glusterfs directory</title>
<updated>2018-12-05T21:47:04+00:00</updated>
<author>
<name>ShyamsundarR</name>
<email>srangana@redhat.com</email>
</author>
<published>2018-11-29T19:08:06+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=20ef211cfa5b5fcc437484a879fdc5d4c66bbaf5'/>
<id>20ef211cfa5b5fcc437484a879fdc5d4c66bbaf5</id>
<content type='text'>
libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.

Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation &lt;&gt; in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs

This change although big, is just moving around the headers and
making it correct when including these headers from other sources.

This helps us correctly include libglusterfs includes without
namespace conflicts.

Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR &lt;srangana@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.

Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation &lt;&gt; in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs

This change although big, is just moving around the headers and
making it correct when including these headers from other sources.

This helps us correctly include libglusterfs includes without
namespace conflicts.

Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR &lt;srangana@redhat.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
