<feed xmlns='http://www.w3.org/2005/Atom'>
<title>glusterfs.git/xlators/experimental/jbr-server/src, branch v4.1.5</title>
<subtitle></subtitle>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/'/>
<entry>
<title>core: remove experimental xlators and associated tests</title>
<updated>2018-05-09T17:41:37+00:00</updated>
<author>
<name>Kaleb S. KEITHLEY</name>
<email>kkeithle@redhat.com</email>
</author>
<published>2017-01-20T16:11:46+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=641355a0fe5ae18d983ce91b46ecafd50d6eb5c1'/>
<id>641355a0fe5ae18d983ce91b46ecafd50d6eb5c1</id>
<content type='text'>
experimental xlators removed from 4.1

Signed-off-by: ShyamsundarR &lt;srangana@redhat.com&gt;
Change-Id: I34419ce22ca09b7626b8f9382c377a614fd9fed8
Updates: bz#1575386
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
experimental xlators removed from 4.1

Signed-off-by: ShyamsundarR &lt;srangana@redhat.com&gt;
Change-Id: I34419ce22ca09b7626b8f9382c377a614fd9fed8
Updates: bz#1575386
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "gfapi: return pre/post attributes from glfs_fsync/fdatasync"</title>
<updated>2018-05-08T15:27:48+00:00</updated>
<author>
<name>ShyamsundarR</name>
<email>srangana@redhat.com</email>
</author>
<published>2018-05-08T15:03:55+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=427951b7f74c643d5b7c7c946bc348209b974274'/>
<id>427951b7f74c643d5b7c7c946bc348209b974274</id>
<content type='text'>
This reverts commit 09943beb499617212f2985ca8ea9ecd1ed1b470e.

This is being reverted as the API signatures should adapt to a
statx like structure, and also all APIs that need to return
pre/post attrs are not complete.

As a result, instead of fixing up part of the APIs and then
refixing the same in a later release, removing these set of
fixes from the branch.

Updates: bz#1575386
Change-Id: I3e0803c114dc6b9126d8a90f43812bca501e6338
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 09943beb499617212f2985ca8ea9ecd1ed1b470e.

This is being reverted as the API signatures should adapt to a
statx like structure, and also all APIs that need to return
pre/post attrs are not complete.

As a result, instead of fixing up part of the APIs and then
refixing the same in a later release, removing these set of
fixes from the branch.

Updates: bz#1575386
Change-Id: I3e0803c114dc6b9126d8a90f43812bca501e6338
</pre>
</div>
</content>
</entry>
<entry>
<title>core/various: python3 compat, prepare for python2 -&gt; python3</title>
<updated>2018-05-02T11:28:46+00:00</updated>
<author>
<name>Kaleb S. KEITHLEY</name>
<email>kkeithle@redhat.com</email>
</author>
<published>2018-04-13T13:13:16+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=4e7b423d3c3137c3f83b71b36279e1a544154833'/>
<id>4e7b423d3c3137c3f83b71b36279e1a544154833</id>
<content type='text'>
see https://review.gluster.org/#/c/19788/

use print fn from __future__

Change-Id: If5075d8d9ca9641058fbc71df8a52aa35804cda4
updates: #411
Signed-off-by: Kaleb S. KEITHLEY &lt;kkeithle@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
see https://review.gluster.org/#/c/19788/

use print fn from __future__

Change-Id: If5075d8d9ca9641058fbc71df8a52aa35804cda4
updates: #411
Signed-off-by: Kaleb S. KEITHLEY &lt;kkeithle@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>core/build/various: python3 compat, prepare for python2 -&gt; python3</title>
<updated>2018-04-12T11:04:27+00:00</updated>
<author>
<name>Kaleb S. KEITHLEY</name>
<email>kkeithle@redhat.com</email>
</author>
<published>2018-03-28T14:14:39+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=29024cfdd5f131c7e3085cbddf9bd1cf60359960'/>
<id>29024cfdd5f131c7e3085cbddf9bd1cf60359960</id>
<content type='text'>
Note 1) we're not supposed to be using #!/usr/bin/env python, see
https://fedoraproject.org/wiki/Packaging:Guidelines?rd=Packaging/Guidelines#Shebang_lines

Note 2) we're also not supposed to be using "!/usr/bin/python,
see https://fedoraproject.org/wiki/Changes/Avoid_usr_bin_python_in_RPM_Build#Quick_Opt-Out

The previous patch (https://review.gluster.org/19767) tried to do too
much in one patch, so it was abandoned.

This patch does two things:
1) minor cleanup of configure(.ac) to explicitly use python2
2) change all the shebang lines to #!/usr/bin/python2 and add them
where they were missing based on warnings emitted during rpmbuild.

In a follow-up patch python2 will eventually be changed to python3.

Before that python2-isms (e.g. print, string.join(), etc.) need to be
converted to python3. Some of those can be rewritten in version agnostic
python. E.g. print statements become print() with "from __future_ import
print_function". The python 2to3 utility will be used for some of those.
Also Aravinda has given guidance in the comments to the first patch for
changes.

updates: #411
Change-Id: I471730962b2526022115a1fc33629fb078b74338
Signed-off-by: Kaleb S. KEITHLEY &lt;kkeithle@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Note 1) we're not supposed to be using #!/usr/bin/env python, see
https://fedoraproject.org/wiki/Packaging:Guidelines?rd=Packaging/Guidelines#Shebang_lines

Note 2) we're also not supposed to be using "!/usr/bin/python,
see https://fedoraproject.org/wiki/Changes/Avoid_usr_bin_python_in_RPM_Build#Quick_Opt-Out

The previous patch (https://review.gluster.org/19767) tried to do too
much in one patch, so it was abandoned.

This patch does two things:
1) minor cleanup of configure(.ac) to explicitly use python2
2) change all the shebang lines to #!/usr/bin/python2 and add them
where they were missing based on warnings emitted during rpmbuild.

In a follow-up patch python2 will eventually be changed to python3.

Before that python2-isms (e.g. print, string.join(), etc.) need to be
converted to python3. Some of those can be rewritten in version agnostic
python. E.g. print statements become print() with "from __future_ import
print_function". The python 2to3 utility will be used for some of those.
Also Aravinda has given guidance in the comments to the first patch for
changes.

updates: #411
Change-Id: I471730962b2526022115a1fc33629fb078b74338
Signed-off-by: Kaleb S. KEITHLEY &lt;kkeithle@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>build: add --without-server option</title>
<updated>2018-02-19T17:38:55+00:00</updated>
<author>
<name>Niels de Vos</name>
<email>ndevos@redhat.com</email>
</author>
<published>2018-01-31T15:38:34+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=8d9961e63786cf8a9bb9e2f4140ab9a77f1ccbe3'/>
<id>8d9961e63786cf8a9bb9e2f4140ab9a77f1ccbe3</id>
<content type='text'>
With Gluster 4.0 we will not provide the server components for EL6 and
older. At one point Gluster 4.x will get GlusterD2, which requires
Golang tools in the distribution. EL6 does not contain these at the
moment.

With this change, it is possible to `./configure --without-server` which
prevents building glusterd and the xlators for the bricks. Building RPMs
can pass `--without server` and the glusterfs-server sub-package will
not be created.

Change-Id: I97f5ccf9f2c76e60d9af83915fc59fae57ad6d25
BUG: 1074947
Signed-off-by: Niels de Vos &lt;ndevos@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
With Gluster 4.0 we will not provide the server components for EL6 and
older. At one point Gluster 4.x will get GlusterD2, which requires
Golang tools in the distribution. EL6 does not contain these at the
moment.

With this change, it is possible to `./configure --without-server` which
prevents building glusterd and the xlators for the bricks. Building RPMs
can pass `--without server` and the glusterfs-server sub-package will
not be created.

Change-Id: I97f5ccf9f2c76e60d9af83915fc59fae57ad6d25
BUG: 1074947
Signed-off-by: Niels de Vos &lt;ndevos@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>gfapi: return pre/post attributes from glfs_fsync/fdatasync</title>
<updated>2018-02-12T21:34:46+00:00</updated>
<author>
<name>Kinglong Mee</name>
<email>mijinlong@open-fs.com</email>
</author>
<published>2018-01-18T07:51:18+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=09943beb499617212f2985ca8ea9ecd1ed1b470e'/>
<id>09943beb499617212f2985ca8ea9ecd1ed1b470e</id>
<content type='text'>
Updates: #389
Change-Id: I4153df72d5eeecefa7579170899db4c340128bea
Signed-off-by: Kinglong Mee &lt;mijinlong@open-fs.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Updates: #389
Change-Id: I4153df72d5eeecefa7579170899db4c340128bea
Signed-off-by: Kinglong Mee &lt;mijinlong@open-fs.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>libglusterfs: Name threads on creation</title>
<updated>2017-07-19T14:16:19+00:00</updated>
<author>
<name>Raghavendra Talur</name>
<email>rtalur@redhat.com</email>
</author>
<published>2017-07-18T06:06:19+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=33db9aff1deaa028f30516e49fdb1e8d6e31bb73'/>
<id>33db9aff1deaa028f30516e49fdb1e8d6e31bb73</id>
<content type='text'>
Set names to threads on creation for easier
debugging.

Output of top -H -p &lt;PID-OF-GLUSTERFSD&gt;
Before:
19773 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19774 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19775 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19776 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19777 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19778 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19779 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19780 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19781 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19782 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19783 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19784 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19785 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19786 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19787 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19789 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19790 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
25178 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
 5398 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
 7881 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd

After:
19773 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19774 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustertimer
19775 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19776 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustermemsweep
19777 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustersproc0
19778 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustersproc1
19779 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll0
19780 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusteridxwrker
19781 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusteriotwr0
19782 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterbrssign
19783 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterbrswrker
19784 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterclogecon
19785 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd0
19786 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd1
19787 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd2
19789 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixjan
19790 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixfsy
25178 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll1
 5398 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll2
 7881 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixhc

Change-Id: Id5f333755c1ba168a2ffaa4fce6e71c375e10703
BUG: 1254002
Updates: #271
Signed-off-by: Raghavendra Talur &lt;rtalur@redhat.com&gt;
Reviewed-on: https://review.gluster.org/11926
Reviewed-by: Prashanth Pai &lt;ppai@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Niels de Vos &lt;ndevos@redhat.com&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Set names to threads on creation for easier
debugging.

Output of top -H -p &lt;PID-OF-GLUSTERFSD&gt;
Before:
19773 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19774 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19775 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19776 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19777 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19778 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19779 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19780 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19781 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19782 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19783 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19784 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19785 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19786 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19787 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterfsd
19789 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19790 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
25178 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
 5398 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
 7881 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd

After:
19773 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19774 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustertimer
19775 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterfsd
19776 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustermemsweep
19777 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustersproc0
19778 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glustersproc1
19779 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll0
19780 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusteridxwrker
19781 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusteriotwr0
19782 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterbrssign
19783 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterbrswrker
19784 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterclogecon
19785 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd0
19786 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd1
19787 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.01 glusterclogd2
19789 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixjan
19790 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixfsy
25178 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll1
 5398 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterepoll2
 7881 root      20   0 1301.3m  12.6m   8.4m S  0.0  0.1   0:00.00 glusterposixhc

Change-Id: Id5f333755c1ba168a2ffaa4fce6e71c375e10703
BUG: 1254002
Updates: #271
Signed-off-by: Raghavendra Talur &lt;rtalur@redhat.com&gt;
Reviewed-on: https://review.gluster.org/11926
Reviewed-by: Prashanth Pai &lt;ppai@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Niels de Vos &lt;ndevos@redhat.com&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Initialize path, since coverty detect a code path where</title>
<updated>2017-02-20T23:32:58+00:00</updated>
<author>
<name>Michael Scherer</name>
<email>misc@redhat.com</email>
</author>
<published>2017-02-19T13:51:27+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=6b42f96d148f0bf36149346196edf5d42bf74941'/>
<id>6b42f96d148f0bf36149346196edf5d42bf74941</id>
<content type='text'>
we do a free on a unitialized pointer
(if jbr_get_changelog_dir fail).

Change-Id: Ib68122bb9eddaeb422028f834856a0776ecbb789
BUG: 1424791
Signed-off-by: Michael Scherer &lt;misc@redhat.com&gt;
Reviewed-on: https://review.gluster.org/16670
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Shyamsundar Ranganathan &lt;srangana@redhat.com&gt;
Tested-by: Nigel Babu &lt;nigelb@redhat.com&gt;
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
we do a free on a unitialized pointer
(if jbr_get_changelog_dir fail).

Change-Id: Ib68122bb9eddaeb422028f834856a0776ecbb789
BUG: 1424791
Signed-off-by: Michael Scherer &lt;misc@redhat.com&gt;
Reviewed-on: https://review.gluster.org/16670
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Shyamsundar Ranganathan &lt;srangana@redhat.com&gt;
Tested-by: Nigel Babu &lt;nigelb@redhat.com&gt;
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>jbr: Sending rollback from failed fop to fdl</title>
<updated>2016-11-08T19:25:25+00:00</updated>
<author>
<name>Avra Sengupta</name>
<email>asengupt@redhat.com</email>
</author>
<published>2016-06-23T06:45:22+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=3e50e09723e024cd451c5f48a153fef0fe4857c7'/>
<id>3e50e09723e024cd451c5f48a153fef0fe4857c7</id>
<content type='text'>
In case of a failed fop, the failure is detected
by the leader in the jbr-server in two places. First
during a quorum check of +ve responses when it
receives responses from all the followers. At this
point if the fop hasn't been successfully journaled
at a quorum of followers (as in there is no merit in
trying the fop in the leader as the quorum will never
be met), then we fail the fop.

Also if this quorum is met, then the fop is tried on
the leader, and after the leader completes the fop
a quorum check similar to the previous one is done
again, this time including the leaders outcome. If
quorum is not met, then we fail the fop.

In both these cases, when the fop fails we send a -ve
ack to the client. With this patch, now we will also
send a rollback through a GF_FOP_IPC to all the followers(and
also to the leader in the second case of failure). This
rollback will contain the index and term number of the
fop which failed. This will be recorded in the respective
journals of the bricks and will be used to rollback the
fop on that brick later.

A subsequent write, and it's respective rollback would
look something like the following in the journal.

The trusted.jbr.term and trusted.jbr.index present in the
dict of both the logs, relate them, and the presence of
"rollback-fop" in the dict of IPC indicates that it is a
rollback fop, and the value 13(stands for GF_FOP_WRITE)
indicates what kind of rollback operation it is.

=== GF_FOP_WRITE
fd = &lt;gfid 77f12ea2-ca56-40e3-a46e-ba2308baa035&gt;
vector = &lt;158 bytes&gt;
offset = 0 (0x0)
flags = 32769 (0x8001)
xdata = dict {
 trusted.jbr.term = 0 &lt;2 bytes&gt;
 trusted.jbr.index = 4 &lt;2 bytes&gt;
}
=== GF_FOP_IPC
xdata = dict {
 trusted.jbr.term = 0 &lt;2 bytes&gt;
 trusted.jbr.index = 4 &lt;2 bytes&gt;
 rollback-fop = 13 &lt;3 bytes&gt;
}

Change-Id: I70b6a143d20697153d58e2f719e34ecd1ed160a5
BUG: 1349385
Signed-off-by: Avra Sengupta &lt;asengupt@redhat.com&gt;
Reviewed-on: http://review.gluster.org/14783
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Jeff Darcy &lt;jdarcy@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In case of a failed fop, the failure is detected
by the leader in the jbr-server in two places. First
during a quorum check of +ve responses when it
receives responses from all the followers. At this
point if the fop hasn't been successfully journaled
at a quorum of followers (as in there is no merit in
trying the fop in the leader as the quorum will never
be met), then we fail the fop.

Also if this quorum is met, then the fop is tried on
the leader, and after the leader completes the fop
a quorum check similar to the previous one is done
again, this time including the leaders outcome. If
quorum is not met, then we fail the fop.

In both these cases, when the fop fails we send a -ve
ack to the client. With this patch, now we will also
send a rollback through a GF_FOP_IPC to all the followers(and
also to the leader in the second case of failure). This
rollback will contain the index and term number of the
fop which failed. This will be recorded in the respective
journals of the bricks and will be used to rollback the
fop on that brick later.

A subsequent write, and it's respective rollback would
look something like the following in the journal.

The trusted.jbr.term and trusted.jbr.index present in the
dict of both the logs, relate them, and the presence of
"rollback-fop" in the dict of IPC indicates that it is a
rollback fop, and the value 13(stands for GF_FOP_WRITE)
indicates what kind of rollback operation it is.

=== GF_FOP_WRITE
fd = &lt;gfid 77f12ea2-ca56-40e3-a46e-ba2308baa035&gt;
vector = &lt;158 bytes&gt;
offset = 0 (0x0)
flags = 32769 (0x8001)
xdata = dict {
 trusted.jbr.term = 0 &lt;2 bytes&gt;
 trusted.jbr.index = 4 &lt;2 bytes&gt;
}
=== GF_FOP_IPC
xdata = dict {
 trusted.jbr.term = 0 &lt;2 bytes&gt;
 trusted.jbr.index = 4 &lt;2 bytes&gt;
 rollback-fop = 13 &lt;3 bytes&gt;
}

Change-Id: I70b6a143d20697153d58e2f719e34ecd1ed160a5
BUG: 1349385
Signed-off-by: Avra Sengupta &lt;asengupt@redhat.com&gt;
Reviewed-on: http://review.gluster.org/14783
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Jeff Darcy &lt;jdarcy@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>build: out-of-tree builds generates files in the wrong directory</title>
<updated>2016-09-18T16:34:37+00:00</updated>
<author>
<name>Kaleb S KEITHLEY</name>
<email>kkeithle@redhat.com</email>
</author>
<published>2016-04-26T21:04:04+00:00</published>
<link rel='alternate' type='text/html' href='http://git.gluster.org/cgit/glusterfs.git/commit/?id=e38dff5b4e0f0a25db664810fc3617eac44673ce'/>
<id>e38dff5b4e0f0a25db664810fc3617eac44673ce</id>
<content type='text'>
And minor cleanup of a few of the Makefile.am files while we're
at it.

Rewrite the make rules to do what xdrgen does. Now we can get rid
of xdrgen.

Note 1. netbsd6's sed doesn't do -i. Why are we still running
smoke tests on netbsd6 and not netbsd7? We barely support netbsd7
as it is.

Note 2. Why is/was libgfxdr.so (.../rpc/xdr/src/...) linked with
libglusterfs? A cut-and-paste mistake? It has no references to
symbols in libglusterfs.

Note3. "/#ifndef\|#define\|#endif/" (note the '\'s) is a _basic_
regex that matches the same lines as the _extended_ regex
"/#(ifndef|define|endif)/". To match the extended regex sed needs to
be run with -r on Linux; with -E on *BSD. However NetBSD's and
FreeBSD's sed helpfully also provide -r for compatibility. Using a
basic regex avoids having to use a kludge in order to run sed with
the correct option on OS X.

Note 4. Not copying the bit of xdrgen that inserts copyright/license
boilerplate. AFAIK it's silly to pretend that machine generated
files like these can be copyrighted or need license boilerplate.
The XDR source files have their own copyright and license; and
their copyrights are bound to be more up to date than old
boilerplate inserted by a script. From what I've seen of other
Open Source projects -- e.g. gcc and its C parser files generated
by yacc and lex -- IIRC they don't bother to add copyright/license
boilerplate to their generated files.

It appears that it's a long-standing feature of make (SysV, BSD,
gnu) for out-of-tree builds to helpfully pretend that the source
files it can find in the VPATH "exist" as if they are in the $cwd.
rpcgen doesn't work well in this situation and generates files
with "bad" #include directives.

E.g. if you `rpcgen ../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.x`,
you get an #include directive in the generated .c file like this:

  ...
  #include "../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.h"
  ...

which (obviously) results in compile errors on out-of-tree build
because the (generated) header file doesn't exist at that location.
Compared to `rpcgen ./glusterfs3-xdr.x` where you get:

  ...
  #include "glusterfs3-xdr.h"
  ...

Which is what we need. We have to resort to some Stupid Make Tricks
like the addition of various .PHONY targets to work around the VPATH
"help".

Warning: When doing an in-tree build, -I$(top_builddir)/rpc/xdr/...
looks exactly like -I$(top_srcdir)/rpc/xdr/...  Don't be fooled though.
And don't delete the -I$(top_builddir)/rpc/xdr/... bits

Change-Id: Iba6ab96b2d0a17c5a7e9f92233993b318858b62e
BUG: 1330604
Signed-off-by: Kaleb S KEITHLEY &lt;kkeithle@redhat.com&gt;
Reviewed-on: http://review.gluster.org/14085
Tested-by: Niels de Vos &lt;ndevos@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Niels de Vos &lt;ndevos@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
And minor cleanup of a few of the Makefile.am files while we're
at it.

Rewrite the make rules to do what xdrgen does. Now we can get rid
of xdrgen.

Note 1. netbsd6's sed doesn't do -i. Why are we still running
smoke tests on netbsd6 and not netbsd7? We barely support netbsd7
as it is.

Note 2. Why is/was libgfxdr.so (.../rpc/xdr/src/...) linked with
libglusterfs? A cut-and-paste mistake? It has no references to
symbols in libglusterfs.

Note3. "/#ifndef\|#define\|#endif/" (note the '\'s) is a _basic_
regex that matches the same lines as the _extended_ regex
"/#(ifndef|define|endif)/". To match the extended regex sed needs to
be run with -r on Linux; with -E on *BSD. However NetBSD's and
FreeBSD's sed helpfully also provide -r for compatibility. Using a
basic regex avoids having to use a kludge in order to run sed with
the correct option on OS X.

Note 4. Not copying the bit of xdrgen that inserts copyright/license
boilerplate. AFAIK it's silly to pretend that machine generated
files like these can be copyrighted or need license boilerplate.
The XDR source files have their own copyright and license; and
their copyrights are bound to be more up to date than old
boilerplate inserted by a script. From what I've seen of other
Open Source projects -- e.g. gcc and its C parser files generated
by yacc and lex -- IIRC they don't bother to add copyright/license
boilerplate to their generated files.

It appears that it's a long-standing feature of make (SysV, BSD,
gnu) for out-of-tree builds to helpfully pretend that the source
files it can find in the VPATH "exist" as if they are in the $cwd.
rpcgen doesn't work well in this situation and generates files
with "bad" #include directives.

E.g. if you `rpcgen ../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.x`,
you get an #include directive in the generated .c file like this:

  ...
  #include "../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.h"
  ...

which (obviously) results in compile errors on out-of-tree build
because the (generated) header file doesn't exist at that location.
Compared to `rpcgen ./glusterfs3-xdr.x` where you get:

  ...
  #include "glusterfs3-xdr.h"
  ...

Which is what we need. We have to resort to some Stupid Make Tricks
like the addition of various .PHONY targets to work around the VPATH
"help".

Warning: When doing an in-tree build, -I$(top_builddir)/rpc/xdr/...
looks exactly like -I$(top_srcdir)/rpc/xdr/...  Don't be fooled though.
And don't delete the -I$(top_builddir)/rpc/xdr/... bits

Change-Id: Iba6ab96b2d0a17c5a7e9f92233993b318858b62e
BUG: 1330604
Signed-off-by: Kaleb S KEITHLEY &lt;kkeithle@redhat.com&gt;
Reviewed-on: http://review.gluster.org/14085
Tested-by: Niels de Vos &lt;ndevos@redhat.com&gt;
Smoke: Gluster Build System &lt;jenkins@build.gluster.org&gt;
NetBSD-regression: NetBSD Build System &lt;jenkins@build.gluster.org&gt;
CentOS-regression: Gluster Build System &lt;jenkins@build.gluster.org&gt;
Reviewed-by: Niels de Vos &lt;ndevos@redhat.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
