glusterfs.git/xlators/performance/write-behind/src, branch v3.1.0qa3

some check added to the variables after GF_CALLOC

2010-07-28T10:34:48+00:00

handles some NULL dereference problems
(reported by clang when ran with code where '#define GF_CALLOC NULL').

Signed-off-by: Amar Tumballi 
Signed-off-by: Anand V. Avati 

BUG: 966 (NULL check for avoiding NULL dereferencing of pointers..)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=966

NULL dereference fixes in code base after running with 'clang'

2010-07-02T12:17:03+00:00

* 212 logical (NULL deref/divide by zero) errors reduced to 28
  (27 of them in contrib/ and lex part of codebase, 1 is invalid)
* 11 API errors reduced to 0

Signed-off-by: Amar Tumballi 
Signed-off-by: Anand V. Avati 

BUG: 966 (NULL check for avoiding NULL dereferencing of pointers..)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=966

performance/write-behind: explicitly enforce ordering of overlapping writes.

2010-07-02T11:44:46+00:00

- If there are non-contiguous offsets (offsets which do not start where
    previous write ended), wait for completion of previous writes to server,
    before sending new ones.
  - Send flush call to server only when all writes are completed.
  - If a file is opened with O_APPEND, at any point of time a maximum only one
    write call to server should be in transit. This is to avoid reordering of
    writes in the presence of afr which can result in data corruption.
    See bug #934 for more details.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 970 (extracting kernel tarball hangs midway.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=970

Revert "performance/write-behind: explicitly enforce ordering of overlapping writes."

2010-06-16T05:07:57+00:00

This reverts commit e46c613364cd90f9c277db8b0733a99fc1d255de.

mem-types: include *-mem-types.h in noinst_HEADERS variables in all Makefile.am

2010-06-08T12:25:07+00:00

Signed-off-by: Anand V. Avati 
Signed-off-by: Anand V. Avati 

BUG: 329 (Replacing memory allocation functions with mem-type functions)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329

performance/write-behind: explicitly enforce ordering of overlapping writes.

2010-05-26T11:40:09+00:00

- If there are non-contiguous offsets (offsets which do not start where
    previous write ended), wait for completion of previous writes to server
    before sending new ones.
  - Send flush call to server only when all writes are completed.
  - If a file is opened with O_APPEND, at any point of time a maximum only one
    write call to server should be in transit. This is to avoid reordering of
    writes in the presence of afr which can result in data corruption.
    See bug #934 for more details.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 934 (md5sum mismatch when files are transferred using vsftpd)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=934

write-behind: update default values for better small file performance

2010-05-13T19:12:12+00:00

Signed-off-by: Anand V. Avati 
Signed-off-by: Anand V. Avati 
Signed-off-by: Anand V. Avati 

BUG: 898 (small file performance enhancements)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=898

frame's 'op', 'type' restructured

2010-05-04T06:40:10+00:00

Signed-off-by: Amar Tumballi 
Signed-off-by: Anand V. Avati 

BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875

Memory accounting changes

2010-04-23T13:32:52+00:00

Memory accounting Changes. Thanks to Vinayak Hegde and Csaba Henk for their
contributions.

Signed-off-by: Vijay Bellur 
Signed-off-by: Anand V. Avati 

BUG: 329 (Replacing memory allocation functions with mem-type functions)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329

performance/write-behind: Resume all the consecutive non-write operations in the request queue in a single go.

2010-03-29T11:29:48+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 740 (read-ahead does not work to its full potential when loaded on top of write-behind)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=740