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As usleep has been obsoleted, changed all invocations of usleep
to nanosleep. From man 3 usleep:
"4.3BSD, POSIX.1-2001. POSIX.1-2001 declares this function
obsolete; use nanosleep(2) instead. POSIX.1-2008 removes the
specification of usleep()."
Added a helper function gf_nanosleep() to have a single place
for handling edge cases that might arise from the conversion of
usleep to nanosleep and allow the sleep to resume with right
remaining value upon being interrupted.
Fixes: bz#1721686
Change-Id: Ia39ab82c9e0f4669d2c00d4cdf25e38d94ef9f62
Signed-off-by: Vijay Bellur <vbellur@redhat.com>
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* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing
NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.
fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi <amarts@redhat.com>
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Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>
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Updates #302
Change-Id: I2c7ab85364337d0bc00428e0001ddc4038e08174
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Background:
I was working on a customer issue where the disks were responding some times
after seconds. It was becoming very difficult to recreate the issues in our
labs, so had to come up with this feature.
Requirements:
We need an xlator which can delay x% of ops for y micro seconds.
We should be able to enable delays for specific fops.
This feature is modeled after error-gen. Most of the logic
is borrowed from that xlator. This is a minimum implementation
of the feature which satisfied the requirements I had. May be
in future with more requirements and understanding of the problem
further we can improve upon this implementation.
Here are the commands and what they do:
Enable delay-gen: (This is similar to how err-gen is enabled on the brick side)
- gluster volume set <volname> delay-gen posix
Set the percentage of fops that need to be delayed
- gluster volume set <volname> delay-gen.delay-percentage 50
Default is 10%
Set the delay in micro seconds
- gluster volume set <volname> delay-gen.delay-duration 500000
Default is 100000
Set comma separated fops to be delayed
- gluster v set r2 delay-gen.enable read,write
Default is all fops.
Fixes #257
Change-Id: Ib547bd39cc024c9cdb63754d21e3aa62fc9d6473
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: https://review.gluster.org/17591
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
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