glusterfs.git/xlators/debug, branch v3.0.4rc5

io-stats: new counters

2010-03-04T10:04:16+00:00

Add new counters and statistics for:

a) total read data - since process start, last interval and per fd
b) total write data - since process start, last interval and per fd
c) counts of read IO block size - since process start, last interval and per fd
d) counts of write IO block size - since process start, last interval and per fd
e) counts of all FOP types passing through it

Usage:

1. For dumping global stats

sh# setfattr -n io-stats-dump /tmp/filename /mnt/gluster

2. For enabling per-fd stats

option dump-fd-stats on

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

BUG: 268 (Add timing instrumentation code)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=268

io-stats: indentation fixes

2010-03-04T10:04:13+00:00

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

BUG: 268 (Add timing instrumentation code)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=268

trace: multiple fixes

2010-01-26T11:47:10+00:00

       Jeff Darcy 

       Jeff Darcy 

- whitespace and indentation cleanup

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

BUG: 168 (trace does not output debug messages)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=168

BUG: 473 (Trace misreporting pre/post attributes for setattr.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=473

BUG: 519 (Possible SEGV when tracing readlink)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=519

BUG: 269 (Add a specialized STACK_UNWIND macro for each FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=269

error-gen: change all STACK_UNWIND calls to STACK_UNWIND_STRICT

2010-01-23T12:47:30+00:00

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

BUG: 269 (Add a specialized STACK_UNWIND macro for each FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=269

error-gen: unwind fsync with proper parameters

2010-01-23T12:47:26+00:00

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

BUG: 553 (server crashed in server_fsync_cbk)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=553

fix leaks pointed out by cppcheck static analyzer

2009-11-30T11:06:42+00:00

See http://cppcheck.sf.net

[./build/libglusterfs/src/y.tab.c:2104]: (error) Memory leak: cmd
[./libglusterfs/src/md5.c:306]: (error) Resource leak: f
[./xlators/debug/io-stats/src/io-stats.c:1396]: (error) Possible null pointer dereference: this - otherwise it is redundant to check if this is null at line 1402
[./xlators/cluster/stripe/src/stripe.c:3597]: (error) Memory leak: dup_str
[./xlators/debug/trace/src/trace.c:2426]: (error) Possible null pointer dereference: this - otherwise it is redundant to check if this is null at line 2429

These appear in rarely hit error cases or test/demo code so nothing
serious, in fact.

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

BUG: 420 (fix leaks pointed out by cppcheck static analyzer)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=420

debug/error-gen: Correct log messages in init function.

2009-11-19T09:15:32+00:00

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

BUG: 291 (feature enhancement of error-gen translator)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=291

fix a crash in debug/trace

2009-11-13T10:13:29+00:00

stat structure (which is an argument to function) was getting freed
instead of string which actually should have freed.

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

BUG: 378 (trace segfault in trace_create_cbk)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=378

debug/trace: Check asprintf return value to avoid warning, while build

2009-10-09T09:00:37+00:00

Signed-off-by: Anand V. Avati 

BUG: 308 (Warning in debug/trace.c, during build)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=308

debug/error-gen: Feature enhancement of error-gen translator

2009-10-09T05:59:48+00:00

In debug/error-gen translator 3-options are provided.
failure - specifies the percentage failure in fops.
error-no - specifies which error-no to be returned.
enable - specifies which are the fops to be enabled for this translator.

Signed-off-by: Anand V. Avati 

BUG: 291 (feature enhancement of error-gen translator)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=291