| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 583 (filesystem access hangs while deleting large files)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=583
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Signed-off-by: Harshavardhana <harsha@gluster.com>
Signed-off-by: Vijay Bellur <vijay@dev.gluster.com>
BUG: 364 (Segfault in io-cache)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=364
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These changes are required to make GlusterFS compile on MacOSX (10.5).
Currently glusterfs server component alone will work over Mac, and it has
to be built with following options to ./configure.
"bash$ ./configure --disable-fuse-client --disable-fusermount "
Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 361 (GlusterFS 3.0 should work on Mac OS/X)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=361
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Lock is held before creating a RBT in inode. Also, did some re-factoring.
Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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Changes in libglusterfs/rbthash:
rbthash_table_init() now takes a mem-pool argument.
The mem-pool argument would be mutually exclusive to expected_entries.
If expected_entries is provided, mem-pool would be ignored and vice-versa.
Changes in io-cache:
1) Moved rbthash creation to readv.
2) rbthash makes use of 1 rbt instead of 4096
3) A global mem-pool is being used in place of a mem-pool per rbt.
Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 269 (Add a specialized STACK_UNWIND macro for each FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=269
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- translators like io-cache, read-ahead return a zero-filled stbuf in
readv_cbk and usage of zero filled stat for cache validation is not
correct.
Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 376 (server-side io-cache is preventing client-side io-cache from working)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=376
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data flushed.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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- the earlier hash function does not distribute pages uniformly for offsets that
fit into 32 bits. The reason is that the hash function just xors the contents of
the key 4 bytes at a time with the current value of hash. Hence for keys that
fit into 32 bits, the hash will be the key itself. Since we are using the
rounded_offset (which is a multiple of 128KB) as the key, the key will
be exactly divisible by the number of buckets configured (4096) resolving all
the pages into the first bucket.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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entries in the hash table as argument.
- the expected number of entries is used to create the memory pool of the hash
table. Having constant macro for this purpose is not suitable since different
users of rbtree based hash table store different number of entries in the
table.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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- page table of cache was not being destroyed in ioc_forget.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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- the destroyer function passed to rbthash_table_init is used to free the data.
The data being inserted is page and it is destroyed in ioc_page_destroy. Hence
no destroyer function needs to be passed to rbthash_table_init.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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- io-cache uses rbtree based hash tables to store page-cache instead of lists.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 335 (Io-cache optimization)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=335
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- caching file contents in io-cache during lookup is obsolete since quick-read
does the same work.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 314 (Hang in quick-read)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=314
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 145 (NFSv3 related additions to 2.1 task list)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=145
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 145 (NFSv3 related additions to 2.1 task list)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=145
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 146 (Add setattr FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=146
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patch http://patches.gluster.com/patch/1319/ breaks when no priority
is mentioned in the config. the patch makes ioc_get_priority() return
1 as the value when no priority is given, but ioc_get_priority_list()
was still returning 0 as the max_pri (maximum priority) which would
result in lru list heads not getting initialized
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 261 (support for disabling caching of certain files)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=261
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Hello all,
here is a small feature patch. Its intention is to give the user more control
over the files performance/io-cache really caches. If the user knows exactly
which files should be cached and which shouldn't there is currently no way to
tell glusterfs _not_ to cache certain pattern. This patch allows you to
disable caching by setting the priority of a pattern to "0". If you do not
give any priority option it works just like before and caches everything.
Honestly I am not totally sure that disabling caching works the way we did it,
please comment.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 261 (support for disabling caching of certain files)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=261
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 130 (build warnings)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=130
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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1. A page will be put on the inode waitq if the 'freshness' has to be verified with an fstat()
2. while the fstat is in transit, other calls (like lookup) can update ioc_inode->tv, resetting the freshness (page still on inode waitq)
3. Another read request on the same page, after the updated freshness, will wake up the page frames neglecting the fact that the page is also waiting on the inode (waiting for the fstat completion)
4. once the page's frames are woken, the page becomes elegible for purging and can get destroyed for various reasons, leaving a destroyed page pointer in the inode's waitq
5. fstat returns and hits the destroyed page pointer causing a crash
The fix is to all together disable cache hits when any page of the same inode is under validation. The otherwise cache hit will now be subjected to the ongoing validation by getting queued to the inode waitq.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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own configurations
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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ioc_create_cbk was holding inode->lock and calling inode_ctx_put,
which also holds the same lock.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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implementation is changed to hold inode->lock.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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updated copyright header to include 2009.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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