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$ gluster-blockd --help
gluster-blockd (0.2)
usage:
gluster-blockd [--glfs-lru-count <count>]
commands:
--glfs-lru-count <count>
glfs objects cache capacity [max: 512] (default: 5)
--help
show this message and exit.
--version
show version info and exit.
Change-Id: I00a9277690a1c5ace51e223e9e4ed9ce61ae2428
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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Problem:
-------
1. Currently, each cli command take ~5 secs for execution. The Maximum
latency is due to initializing a glfs object (glfs_init() and friends).
2. OOM kills due to glfs_fini() leaks (~10MB per object)
Solution:
--------
Caching bipasses glfs_init() calls from the very next command, as in the first
command it goes via the glfs_init route, since there will be cache miss.
Hence with caching cli command on a local machine should take ~1 sec.
ATM, the cache query looks at the volume name only, as the host name will be
localhost in our case and transport will be tcp 24007 always.
The default cache capacity is 5 i.e there can be a max of five glfs entries in
the cache, anything more will lead to release of least recently used object.
This way, if there are <= 5 volume in use for block, there will be no
glfs_fini() calls, hence no leaks, no OOM's.
The next patch will help in making cache capacity configurable.
Change-Id: Ia891451cb92cf09959c1aff85976d78302ec7014
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
[ndevos: correct compiling+linking against libgfapi.so]
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Remove all generated files and have them generated when needed. This
build a libgbrpcxdr.la archive with the .o files that gets linked into
the libgbrpc.la archive. 'rpcgen' generates .c code that triggers
warnings for various compilers. This is not something that can easily be
fixed, so add rpc-pragmas.h (like GlusterFS does) to prevent these
warnings.
There are some functions used by gluster-blockd.c that are not part of
the header and were manually added to block.h. Because block.h get
regenerated now, these functions have been added to a new file
block_svc.h.
Note that generated and compiled files land in $(top_builddir). This
directory does not need to be the same as $(top_srcdir).
Change-Id: I0e764d159d6d785699537eed4e24b16883218038
Fixes: #2
Signed-off-by: Niels de Vos <ndevos@redhat.com>
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Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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Till now we had simple makefile for checking dependencies and building.
Using libtoolz will give more control on dependency checks and
flexibility.
This patch also introduce rpm build feature.
Compiling:
$ ./autogen.sh
$ ./configure
$ make -j
$ make install
Building RPMS:
$ make rpms
Running:
$ systemctl start gluster-blockd.service
Using CLI:
$ gluster-block help
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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