<feed xmlns='http://www.w3.org/2005/Atom'>
<title>glusterfs.git/rpc/rpc-transport/rdma/src/rdma.c, branch v6.4</title>
<subtitle></subtitle>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/'/>
<entry>
<title>Revert "iobuf: Get rid of pre allocated iobuf_pool and use per thread mem pool"</title>
<updated>2019-01-08T11:16:03+00:00</updated>
<author>
<name>Amar Tumballi</name>
<email>amarts@redhat.com</email>
</author>
<published>2019-01-04T07:04:50+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=37653efdc7681d1b0f255054ec2f9c9ddd4c8b14'/>
<id>37653efdc7681d1b0f255054ec2f9c9ddd4c8b14</id>
<content type='text'>
This reverts commit b87c397091bac6a4a6dec4e45a7671fad4a11770.

There seems to be some performance regression with the patch and hence recommended to have it reverted.

Updates: #325
Change-Id: Id85d6203173a44fad6cf51d39b3e96f37afcec09
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit b87c397091bac6a4a6dec4e45a7671fad4a11770.

There seems to be some performance regression with the patch and hence recommended to have it reverted.

Updates: #325
Change-Id: Id85d6203173a44fad6cf51d39b3e96f37afcec09
</pre>
</div>
</content>
</entry>
<entry>
<title>rdma: fix possible buffer overflow</title>
<updated>2018-12-19T11:24:57+00:00</updated>
<author>
<name>Rinku Kothiya</name>
<email>rkothiya@redhat.com</email>
</author>
<published>2018-12-17T14:25:20+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=e3ec41af9a9f4d906dd7b512b3f4f91a6f338f4b'/>
<id>e3ec41af9a9f4d906dd7b512b3f4f91a6f338f4b</id>
<content type='text'>
used snprintf instead of sprintf and if the source string is bigger
than destination then logged a warning message.

clang warning: ‘%s’ directive writing up to 1024 bytes into a region
of size 108.

updates: bz#1622665

Change-Id: Ia5e7c53d35d8178dd2c75708698599fe8bded5de
Signed-off-by: Rinku Kothiya &lt;rkothiya@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
used snprintf instead of sprintf and if the source string is bigger
than destination then logged a warning message.

clang warning: ‘%s’ directive writing up to 1024 bytes into a region
of size 108.

updates: bz#1622665

Change-Id: Ia5e7c53d35d8178dd2c75708698599fe8bded5de
Signed-off-by: Rinku Kothiya &lt;rkothiya@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>iobuf: Get rid of pre allocated iobuf_pool and use per thread mem pool</title>
<updated>2018-12-18T09:35:24+00:00</updated>
<author>
<name>Poornima G</name>
<email>pgurusid@redhat.com</email>
</author>
<published>2018-11-21T06:39:39+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=b87c397091bac6a4a6dec4e45a7671fad4a11770'/>
<id>b87c397091bac6a4a6dec4e45a7671fad4a11770</id>
<content type='text'>
The current implementation of iobuf_pool has two problems:
- prealloc of 12.5MB memory, this limits the scale factor of the gluster
  processes due to RAM requirements
- lock contention, as the current implementation has one global
  iobuf_pool lock. Credits for debugging and addressing the same goes to
  Krutika Dhananjay &lt;kdhananj@redhat.com&gt;. Issue: #410

Hence changing the iobuf implementation to use per thread mem pool.
This may theoritically appear to cause perf dip as there is no preallocation.
But per thread mem pool will not have significant perf impact as the last
allocated memory is kept alive for subsequent allocs, for some time.
The worst case would be if iobufs requested are of random sizes each time.
The best case is, if we get iobuf request of the same size. From the perf
tests, this patch did not seem to cause any perf decrease.

Note that, with this patch, the rdma performance is going to degrade
drastically. In one of the previous patchsets we had fixes to not
degrade rdma perf, but rdma is not supported and also not tested [1].
Hence the decision was to not have code in rdma that is not tested
and not supported.

[1] https://lists.gluster.org/pipermail/gluster-users.old/2018-July/034400.html

Updates: #325
Change-Id: Ic2ef3bd498f9250dea25f25ba0c01fde19584b27
Signed-off-by: Poornima G &lt;pgurusid@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The current implementation of iobuf_pool has two problems:
- prealloc of 12.5MB memory, this limits the scale factor of the gluster
  processes due to RAM requirements
- lock contention, as the current implementation has one global
  iobuf_pool lock. Credits for debugging and addressing the same goes to
  Krutika Dhananjay &lt;kdhananj@redhat.com&gt;. Issue: #410

Hence changing the iobuf implementation to use per thread mem pool.
This may theoritically appear to cause perf dip as there is no preallocation.
But per thread mem pool will not have significant perf impact as the last
allocated memory is kept alive for subsequent allocs, for some time.
The worst case would be if iobufs requested are of random sizes each time.
The best case is, if we get iobuf request of the same size. From the perf
tests, this patch did not seem to cause any perf decrease.

Note that, with this patch, the rdma performance is going to degrade
drastically. In one of the previous patchsets we had fixes to not
degrade rdma perf, but rdma is not supported and also not tested [1].
Hence the decision was to not have code in rdma that is not tested
and not supported.

[1] https://lists.gluster.org/pipermail/gluster-users.old/2018-July/034400.html

Updates: #325
Change-Id: Ic2ef3bd498f9250dea25f25ba0c01fde19584b27
Signed-off-by: Poornima G &lt;pgurusid@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://dev.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>rpc *.h fles: align structs</title>
<updated>2018-12-03T05:53:34+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2018-11-23T10:14:59+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=b56bf714c1f22212700db50c057e4e47b99be739'/>
<id>b56bf714c1f22212700db50c057e4e47b99be739</id>
<content type='text'>
Make an effort to slightly better align the structures.

Change-Id: I6f80a451f2ffbf15adfb986cedc24c2799787b49
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>
Make an effort to slightly better align the structures.

Change-Id: I6f80a451f2ffbf15adfb986cedc24c2799787b49
updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rdma: coverity fixes</title>
<updated>2018-10-21T05:51:41+00:00</updated>
<author>
<name>Bhumika Goyal</name>
<email>bgoyal@redhat.com</email>
</author>
<published>2018-10-18T08:45:40+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=c5f5ce2a9b1c085209cae21a7e1df5f60bc1a7da'/>
<id>c5f5ce2a9b1c085209cae21a7e1df5f60bc1a7da</id>
<content type='text'>
Fixes CID: 1382442 1382415 1382379 1382355

Change-Id: Ia712e37cb5a6db452d3178386394f87f83b85d38
updates: bz#789278
Signed-off-by: Bhumika Goyal &lt;bgoyal@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixes CID: 1382442 1382415 1382379 1382355

Change-Id: Ia712e37cb5a6db452d3178386394f87f83b85d38
updates: bz#789278
Signed-off-by: Bhumika Goyal &lt;bgoyal@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rpc: make binding to port 0 as the default if no option is provided</title>
<updated>2018-10-02T11:07:32+00:00</updated>
<author>
<name>Amar Tumballi</name>
<email>amarts@redhat.com</email>
</author>
<published>2018-09-23T18:23:39+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=c96778b354ea82943442aab158adbb854ca43a52'/>
<id>c96778b354ea82943442aab158adbb854ca43a52</id>
<content type='text'>
Right now, if no option is provided, the default port is assumed,
which is 24007. Ideally, for 'glusterfsd' processes, it is better
to not assume there are any ports given, so it can start listening
on any port which is available.

This helps us to cleanup the dependencies on glusterd from glusterfsd
at the moment. No changes would be done to glusterd code, but making
the right defaults helps to make glusterfsd more independent process
later.

NOTE: This patch is a reduced version of below set of patches:
 * https://review.gluster.org/14613/ &amp;
 * https://review.gluster.org/14670/ &amp;
 * https://review.gluster.org/14671/

Credits: Prasanna Kumar Kalever &lt;pkalever@redhat.com&gt;

updates: bz#1343926
Change-Id: Ib874e10505e7366dc56ba754458252b67052e653
Signed-off-by: Amar Tumballi &lt;amarts@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Right now, if no option is provided, the default port is assumed,
which is 24007. Ideally, for 'glusterfsd' processes, it is better
to not assume there are any ports given, so it can start listening
on any port which is available.

This helps us to cleanup the dependencies on glusterd from glusterfsd
at the moment. No changes would be done to glusterd code, but making
the right defaults helps to make glusterfsd more independent process
later.

NOTE: This patch is a reduced version of below set of patches:
 * https://review.gluster.org/14613/ &amp;
 * https://review.gluster.org/14670/ &amp;
 * https://review.gluster.org/14671/

Credits: Prasanna Kumar Kalever &lt;pkalever@redhat.com&gt;

updates: bz#1343926
Change-Id: Ib874e10505e7366dc56ba754458252b67052e653
Signed-off-by: Amar Tumballi &lt;amarts@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://dev.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>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu &lt;nigelb@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://dev.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>
<content type='xhtml'>
<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>rpc-transport/rdma: Fix coverity issues in rdma transport</title>
<updated>2017-12-28T06:59:04+00:00</updated>
<author>
<name>Yi Wang</name>
<email>wangyi@storswift.com</email>
</author>
<published>2017-12-25T17:17:04+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=3f0405f3ee81e05666116720c4f136403f778188'/>
<id>3f0405f3ee81e05666116720c4f136403f778188</id>
<content type='text'>
Issues:
[1] https://download.gluster.org/pub/gluster/glusterfs/static-analysis/master/glusterfs-coverity/2017-12-25-0bc22bef/cov-errors.txt

Resolved:
[1] rdma.c:128 var_deref_op: Dereferencing null pointer "post".
[2] rdma.c:677: Potentially overflowing expression
[3] rdma.c:4250: freed_arg: "rpc_transport_unref" frees "peer-&gt;trans".
[4] rdma.c:4644: var_deref_op: Dereferencing null pointer "rdma_ctx".
[5] rdma.c:4945: cond_false: Condition "rdma_ctx != NULL", taking false branch.

Change-Id: Iec38f118d645df4131739da412a6c741ebbd2f85
BUG: 789278
Signed-off-by: Yi Wang &lt;wangyi@storswift.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Issues:
[1] https://download.gluster.org/pub/gluster/glusterfs/static-analysis/master/glusterfs-coverity/2017-12-25-0bc22bef/cov-errors.txt

Resolved:
[1] rdma.c:128 var_deref_op: Dereferencing null pointer "post".
[2] rdma.c:677: Potentially overflowing expression
[3] rdma.c:4250: freed_arg: "rpc_transport_unref" frees "peer-&gt;trans".
[4] rdma.c:4644: var_deref_op: Dereferencing null pointer "rdma_ctx".
[5] rdma.c:4945: cond_false: Condition "rdma_ctx != NULL", taking false branch.

Change-Id: Iec38f118d645df4131739da412a6c741ebbd2f85
BUG: 789278
Signed-off-by: Yi Wang &lt;wangyi@storswift.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
