Summary: log: Fix problem with creation of lots of .nfsxxx... files
Review request for Trac Ticket(s): #1042
Peer Reviewer(s): [email protected]
Pull request to: 
Affected branch(es): 4.4 ->
Development branch: <<IF ANY GIVE THE REPO URL>>

--------------------------------
Impacted area       Impact y/n
--------------------------------
 Docs                    n
 Build system            n
 RPM/packaging           n
 Configuration files     n
 Startup scripts         n
 SAF services            y
 OpenSAF services        n
 Core libraries          n
 Samples                 n
 Tests                   n
 Other                   n


Comments (indicate scope for each "y" above):
---------------------------------------------
 <<EXPLAIN/COMMENT THE PATCH SERIES HERE>>

changeset be700bc6fdf5c25a99a219d59f34bd4d899382ab
Author: Lennart Lund <[email protected]>
Date:   Fri, 12 Sep 2014 14:46:46 +0200

        log: Fix problem with creation of lots of .nfsxxx... files [#1042]

        Fix log service fault creation of .nfs file in the log directories.
        * Always do fdatasync() before closing a file.
        * Always invalidate the stream file descriptor on close also if failed
        * Save file descriptors if file thread is busy on close. Close files 
when
        available again.
        * If file open time out but file is opened the fd is not used and must 
be
        invalidated (closed)
        * Correct mutex unlock/lock around file I/O
        * Create a new filename for current log file even if removal of oldest 
file
        fail


Complete diffstat:
------------------
 osaf/services/saf/logsv/lgs/lgs_file.c    |  103 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 osaf/services/saf/logsv/lgs/lgs_file.h    |    2 +
 osaf/services/saf/logsv/lgs/lgs_filehdl.c |  132 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------
 osaf/services/saf/logsv/lgs/lgs_filehdl.h |    2 +-
 osaf/services/saf/logsv/lgs/lgs_stream.c  |   69 
+++++++++++++++++++++++++++--------------------------
 tests/logsv/tet_LogOiOps.c                |   21 ++++++++++++++--
 6 files changed, 271 insertions(+), 58 deletions(-)


Testing Commands:
-----------------
a)
# logtest

b)
For more testing the following can be done:
In file lgs_filehdl.c there is an outcommented define RAND_TIMEOUT_TEST. If 
this define is activated and
the log service is rebuilt a delay will be activated randomly causing file I/O 
operations to time out.
Run logtest


Testing, Expected Results:
--------------------------
a)
All testcases shall PASS

b)
The log service shall not crash. Some testcases may fail but shall only fail on 
imm command timeout which
some testcases cannot handle. In test cases writing log records there will be 
many TRY_AGAIN messages
but the test case shall eventually PASS.

Conditions of Submission:
-------------------------
Ack by reviewers


Arch      Built     Started    Linux distro
-------------------------------------------
mips        n          n
mips64      n          n
x86         n          n
x86_64      n          n
powerpc     n          n
powerpc64   n          n


Reviewer Checklist:
-------------------
[Submitters: make sure that your review doesn't trigger any checkmarks!]


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    do not contain the patch that updates the Doxygen manual.


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