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<title>glusterfs.git/xlators/cluster/ec/src/ec-common.c, branch v6.1</title>
<subtitle></subtitle>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/'/>
<entry>
<title>cluster/ec: Don't enqueue an entry if it is already healing</title>
<updated>2019-04-16T10:50:49+00:00</updated>
<author>
<name>Ashish Pandey</name>
<email>aspandey@redhat.com</email>
</author>
<published>2018-11-28T05:52:52+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=f792fd01aab1e50b4f662305e9c417064bd37c30'/>
<id>f792fd01aab1e50b4f662305e9c417064bd37c30</id>
<content type='text'>
Problem:
1 - heal-wait-qlength is by default 128. If shd is disabled
and we need to heal files, client side heal is needed.
If we access these files that will trigger the heal.
However, it has been observed that a file will be enqueued
multiple times in the heal wait queue, which in turn causes
queue to be filled and prevent other files to be enqueued.

2 - While a file is going through healing and a write fop from
mount comes on that file, it sends write on all the bricks including
healing one. At the end it updates version and size on all the
bricks. However, it does not unset dirty flag on all the bricks,
even if this write fop was successful on all the bricks.
After healing completion this dirty flag remain set and never
gets cleaned up if SHD is disabled.

Solution:
1 - If an entry is already in queue or going through heal process,
don't enqueue next client side request to heal the same file.

2 - Unset dirty on all the bricks at the end if fop has succeeded on
all the bricks even if some of the bricks are going through heal.

Change-Id: Ia61ffe230c6502ce6cb934425d55e2f40dd1a727
updates: bz#1693223
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
(cherry picked from commit 313dcefe7a62bd16cd794040df068f9bec9c6927)
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<pre>
Problem:
1 - heal-wait-qlength is by default 128. If shd is disabled
and we need to heal files, client side heal is needed.
If we access these files that will trigger the heal.
However, it has been observed that a file will be enqueued
multiple times in the heal wait queue, which in turn causes
queue to be filled and prevent other files to be enqueued.

2 - While a file is going through healing and a write fop from
mount comes on that file, it sends write on all the bricks including
healing one. At the end it updates version and size on all the
bricks. However, it does not unset dirty flag on all the bricks,
even if this write fop was successful on all the bricks.
After healing completion this dirty flag remain set and never
gets cleaned up if SHD is disabled.

Solution:
1 - If an entry is already in queue or going through heal process,
don't enqueue next client side request to heal the same file.

2 - Unset dirty on all the bricks at the end if fop has succeeded on
all the bricks even if some of the bricks are going through heal.

Change-Id: Ia61ffe230c6502ce6cb934425d55e2f40dd1a727
updates: bz#1693223
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
(cherry picked from commit 313dcefe7a62bd16cd794040df068f9bec9c6927)
</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>
<entry>
<title>all: fix warnings on non 64-bits architectures</title>
<updated>2018-10-10T05:50:29+00:00</updated>
<author>
<name>Xavi Hernandez</name>
<email>xhernandez@redhat.com</email>
</author>
<published>2018-09-25T11:22:47+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=2d96ce8faa277809c0c94aca54320483889f577d'/>
<id>2d96ce8faa277809c0c94aca54320483889f577d</id>
<content type='text'>
When compiling in other architectures there appear many warnings. Some
of them are actual problems that prevent gluster to work correctly on
those architectures.

Change-Id: Icdc7107a2bc2da662903c51910beddb84bdf03c0
fixes: bz#1632717
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When compiling in other architectures there appear many warnings. Some
of them are actual problems that prevent gluster to work correctly on
those architectures.

Change-Id: Icdc7107a2bc2da662903c51910beddb84bdf03c0
fixes: bz#1632717
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Land part 2 of clang-format changes</title>
<updated>2018-09-12T12:22:45+00:00</updated>
<author>
<name>Gluster Ant</name>
<email>bugzilla-bot@gluster.org</email>
</author>
<published>2018-09-12T12:22:45+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=e16868dede6455cab644805af6fe1ac312775e13'/>
<id>e16868dede6455cab644805af6fe1ac312775e13</id>
<content type='text'>
Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu &lt;nigelb@redhat.com&gt;
</content>
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<pre>
Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu &lt;nigelb@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cluster/ec: Don't update trusted.ec.version if fop succeeds</title>
<updated>2018-09-07T07:29:39+00:00</updated>
<author>
<name>Ashish Pandey</name>
<email>aspandey@redhat.com</email>
</author>
<published>2018-09-06T05:50:32+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=527dffeb699e5ac857a798d462a3fba4aed3c5a5'/>
<id>527dffeb699e5ac857a798d462a3fba4aed3c5a5</id>
<content type='text'>
If a fop has succeeded on all the bricks and trying to release
the lock, there is no need to update the version for the
file/entry. All it will do is to increase the version from
x to x+1 on all the bricks.

If this update (x to x+1) fails on some brick, this will indicate
that the entry is unhealthy while in realty everything is fine
with the entry.

Avoiding this update will help to not to send one xattrop
at the end of the fops. Which will decrease the chances
of entries being in unhealthy state and also improve the
performance.

Change-Id: Id9fca6bd2991425db6ed7d1f36af27027accb636
fixes: bz#1623759
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
</content>
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<pre>
If a fop has succeeded on all the bricks and trying to release
the lock, there is no need to update the version for the
file/entry. All it will do is to increase the version from
x to x+1 on all the bricks.

If this update (x to x+1) fails on some brick, this will indicate
that the entry is unhealthy while in realty everything is fine
with the entry.

Avoiding this update will help to not to send one xattrop
at the end of the fops. Which will decrease the chances
of entries being in unhealthy state and also improve the
performance.

Change-Id: Id9fca6bd2991425db6ed7d1f36af27027accb636
fixes: bz#1623759
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cluster/ec: Improve logging for some critical error messages</title>
<updated>2018-09-07T07:23:21+00:00</updated>
<author>
<name>Ashish Pandey</name>
<email>aspandey@redhat.com</email>
</author>
<published>2018-09-03T08:31:23+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=18543fec0da8d0459501fb96f8efb019190bf223'/>
<id>18543fec0da8d0459501fb96f8efb019190bf223</id>
<content type='text'>
Change-Id: I037e52a3467467b81a1ba5416317870864060d4d
updates: bz#1615703
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
</content>
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<pre>
Change-Id: I037e52a3467467b81a1ba5416317870864060d4d
updates: bz#1615703
Signed-off-by: Ashish Pandey &lt;aspandey@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>All: run codespell on the code and fix issues.</title>
<updated>2018-07-22T14:40:16+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2018-07-16T14:03:17+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=621138ce763eda8270d0a4f6d7209fd50ada8787'/>
<id>621138ce763eda8270d0a4f6d7209fd50ada8787</id>
<content type='text'>
Please review, it's not always just the comments that were fixed.
I've had to revert of course all calls to creat() that were changed
to create() ...

Only compile-tested!

Change-Id: I7d02e82d9766e272a7fd9cc68e51901d69e5aab5
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Please review, it's not always just the comments that were fixed.
I've had to revert of course all calls to creat() that were changed
to create() ...

Only compile-tested!

Change-Id: I7d02e82d9766e272a7fd9cc68e51901d69e5aab5
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cluster/ec: Fix pre-op xattrop management</title>
<updated>2018-05-23T20:51:37+00:00</updated>
<author>
<name>Xavi Hernandez</name>
<email>xhernandez@redhat.com</email>
</author>
<published>2018-05-15T09:37:16+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=676aae1ef168cb7ecad4eecd71b079a5d4995247'/>
<id>676aae1ef168cb7ecad4eecd71b079a5d4995247</id>
<content type='text'>
Multiple pre-op xattrop can be simultaneously being processed. On the cbk
it was checked if the fop was waiting for some specific data (like size and
version) and, if so, it was assumed that this answer should contain that
data.

This is not true, since a fop can be waiting for some data, but it may come
from the xattrop of another fop.

This patch differentiates between needing some information and providing it.

This is related to parallel writes. Disabling them fixed the problem, but
also prevented concurrent reads. A change has been made so that disabling
parallel writes still allows parallel reads.

Fixes: bz#1578325
Change-Id: I74772ad6b80b7b37805da93d5ec3ae099e96b041
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</content>
<content type='xhtml'>
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<pre>
Multiple pre-op xattrop can be simultaneously being processed. On the cbk
it was checked if the fop was waiting for some specific data (like size and
version) and, if so, it was assumed that this answer should contain that
data.

This is not true, since a fop can be waiting for some data, but it may come
from the xattrop of another fop.

This patch differentiates between needing some information and providing it.

This is related to parallel writes. Disabling them fixed the problem, but
also prevented concurrent reads. A change has been made so that disabling
parallel writes still allows parallel reads.

Fixes: bz#1578325
Change-Id: I74772ad6b80b7b37805da93d5ec3ae099e96b041
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cluster/ec: Do lock conflict check correctly for wait-list</title>
<updated>2018-02-01T09:07:20+00:00</updated>
<author>
<name>Pranith Kumar K</name>
<email>pkarampu@redhat.com</email>
</author>
<published>2018-01-31T16:40:46+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=ce9055449477dd59f29de213d140c60b03e465eb'/>
<id>ce9055449477dd59f29de213d140c60b03e465eb</id>
<content type='text'>
Problem:
ec_link_has_lock_conflict() is traversing over only owner_list
but the function is also getting called with wait_list.

Fix:
Modify ec_link_has_lock_conflict() to traverse lists correctly.
Updated the callers to reflect the changes.

BUG: 1540669
Change-Id: Ibd7ea10f4498e7c2761f9a6faac6d5cb7d750c91
Signed-off-by: Pranith Kumar K &lt;pkarampu@redhat.com&gt;
</content>
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<pre>
Problem:
ec_link_has_lock_conflict() is traversing over only owner_list
but the function is also getting called with wait_list.

Fix:
Modify ec_link_has_lock_conflict() to traverse lists correctly.
Updated the callers to reflect the changes.

BUG: 1540669
Change-Id: Ibd7ea10f4498e7c2761f9a6faac6d5cb7d750c91
Signed-off-by: Pranith Kumar K &lt;pkarampu@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>locks: added inodelk/entrylk contention upcall notifications</title>
<updated>2018-01-16T10:37:22+00:00</updated>
<author>
<name>Xavier Hernandez</name>
<email>xhernandez@datalab.es</email>
</author>
<published>2016-06-15T12:42:19+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=7ba7a4b27d124f4ee16fe4776a4670cd5b0160c4'/>
<id>7ba7a4b27d124f4ee16fe4776a4670cd5b0160c4</id>
<content type='text'>
The locks xlator now is able to send a contention notification to
the current owner of the lock.

This is only a notification that can be used to improve performance
of some client side operations that might benefit from extended
duration of lock ownership. Nothing is done if the lock owner decides
to ignore the message and to not release the lock. For forced
release of acquired resources, leases must be used.

Change-Id: I7f1ad32a0b4b445505b09908a050080ad848f8e0
Signed-off-by: Xavier Hernandez &lt;xhernandez@datalab.es&gt;
</content>
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<pre>
The locks xlator now is able to send a contention notification to
the current owner of the lock.

This is only a notification that can be used to improve performance
of some client side operations that might benefit from extended
duration of lock ownership. Nothing is done if the lock owner decides
to ignore the message and to not release the lock. For forced
release of acquired resources, leases must be used.

Change-Id: I7f1ad32a0b4b445505b09908a050080ad848f8e0
Signed-off-by: Xavier Hernandez &lt;xhernandez@datalab.es&gt;
</pre>
</div>
</content>
</entry>
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