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* Replace GPLV3 MD5 with OpenSSL MD5Kaleb KEITHLEY2012-04-041-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ric asked me to look at replacing the GPL licensed MD5 code with something better, i.e. perhaps faster, and with a less restrictive license, etc. So I took a couple hour holiday from working on wrapping up the client_t and did this. OpenSSL (nee SSLeay) is released under the OpenSSL license, a BSD/MIT style license. OpenSSL (libcrypto.so) is used on Linux, OS X and *BSD, Open Solaris, etc. IOW it's universally available on the platforms we care about. It's written by Eric Young (eay), now at EMC/RSA, and I can say from experience that the OpenSSL implementation of MD5 (at least) is every bit as fast as RSA's proprietary implementation (primarily because the implementations are very, very similar.) The last time I surveyed MD5 implementations I found they're all pretty much the same speed. I changed the APIs (and ABIs) for the strong and weak checksums. Strictly speaking I didn't need to do that. They're only called on short strings of data, i.e. pathnames, so using int32_t and uint32_t is ostensibly okay. My change is arguably a better, more general API for this sort of thing. It's also what bit me when gerrit/jenkins validation failed due to glusterfs segv-ing. (I didn't pay close enough attention to the implementation of the weak checksum. But it forced me to learn what gerrit/jenkins are doing and going forward I can do better testing before submitting to gerrit.) Now resubmitting with a BZ Change-Id: I545fade1604e74fc68399894550229bd57a5e0df BUG: 807718 Signed-off-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.com/3019 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* cluster/afr: Add commands to see self-heald opsPranith Kumar K2012-02-201-1/+1
| | | | | | | | | Change-Id: Id92d3276e65a6c0fe61ab328b58b3954ae116c74 BUG: 763820 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/2775 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Proactive self heal process implementationPranith Kumar K2011-09-141-2/+2
| | | | | | | | Change-Id: I96db0d94566ceabf1649f890318363f738c06553 BUG: 2458 Reviewed-on: http://review.gluster.com/403 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* adding libxlator, to ensure proper client side aggregation of marks by ↵Kaushik BV2011-01-271-3/+4
| | | | | | | | | | | clustering translators Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2310 (georeplication) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2310
* cluster/afr: Use 2 phase locking for transactions and self heal.Pavan Sondur2010-08-221-1/+1
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 960 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=960
* add pump xlator and changes for replace-brickPavan Sondur2010-08-061-5/+11
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 1235 (Bug for all pump/migrate commits) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1235
* mem-types: include *-mem-types.h in noinst_HEADERS variables in all Makefile.amAnand Avati2010-06-081-1/+1
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 329 (Replacing memory allocation functions with mem-type functions) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329
* dynamic volume changes for graph replacementAnand Avati2010-06-071-3/+3
| | | | | | | | Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* cluster/afr: Do self-heal on reopened fds.Vikas Gorur2009-11-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | This patch brings in partial support for self-heal of open fds. The precondition is that the fd should have been opened successfully during the initial open() (or create()), and we assume that protocol/client has successfully reopened the fd when the subvolume comes back up. It works by doing an "up/down flush" (a dummy flush transaction to do post-op wherever necessary) and then triggering data self-heal on the file in the post-post-op hook of the dummy flush transaction. This ensures that any writes that come in during self-heal will wait until self-heal completes. The up/down flush is also done when a subvolume goes down, so that post-op is done on all subvolumes where pre-op was done. Signed-off-by: Vikas Gorur <vikas@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 170 (Auto-heal fails on files that are open()-ed/mmap()-ed) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=170
* cluster/afr: Make the self-heal algorithm pluggable.Vikas Gorur2009-09-221-2/+2
| | | | | | | | Abstract the read/write loop part of data self-heal. This patch has support for the "full" (i.e., read and write entire file) algorithm. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* Added all filesVikas Gorur2009-02-181-0/+20