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Full Discussion: Meaning of /var/log/messages
Operating Systems Linux Red Hat Meaning of /var/log/messages Post 302997566 by Anjan Ganguly on Tuesday 16th of May 2017 01:57:43 PM
Old 05-16-2017
Meaning of /var/log/messages

I am getting a lot of message as follows in /var/log/message files as follows.
Code:
 messages.1:559:May  4 20:01:56 SERVER2 kernel: session_stat: sync=0 async=33 aretr=0
messages.1:560:May  4 20:02:42 SERVER2 kernel: session_stat: dev=fd:5 state=6 blksize=4096 mmapsize=262144
messages.1:561:May  4 20:02:42 SERVER2 kernel: session_stat: psize=16777216 pstrt=0 mshft=0 ioctls=23102
messages.1:562:May  4 20:02:42 SERVER2 kernel: session_stat: bhpgs=0 bhcnt=0 abhs=5498 fbhs=5498 dbhs=0
messages.1:563:May  4 20:02:42 SERVER2 kernel: session_stat: gpgs=515866 ppgs=515866 emmax=515361 emmin=483151 emcur=0 cached=0
messages.1:564:May  4 20:02:42 SERVER2 kernel: session_stat: rblk=221688 cblk=309 rcblk=317 rc2blk=0 mcblk=220 rwcolls=2
messages.1:565:May  4 20:02:42 SERVER2 kernel: session_stat: sync=0 async=309 aretr=0
messages.1:566:May  4 20:02:49 SERVER2 kernel: session_stat: dev=fd:6 state=6 blksize=4096 mmapsize=262144
messages.1:567:May  4 20:02:49 SERVER2 kernel: session_stat: psize=8388608 pstrt=0 mshft=0 ioctls=1402
messages.1:568:May  4 20:02:49 SERVER2 kernel: session_stat: bhpgs=0 bhcnt=0 abhs=719 fbhs=719 dbhs=0
messages.1:569:May  4 20:02:49 SERVER2 kernel: session_stat: gpgs=515558 ppgs=515558 emmax=515361 emmin=483151 emcur=0 cached=0
messages.1:570:May  4 20:02:49 SERVER2 kernel: session_stat: rblk=41143 cblk=33 rcblk=34 rc2blk=0 mcblk=32 rwcolls=2
messages.1:571:May  4 20:02:49 SERVER2 kernel: session_stat: sync=0 async=33 aretr=0
messages.1:572:May  4 20:02:58 SERVER2 kernel: session_stat: dev=fd:4 state=6 blksize=4096 mmapsize=262144
messages.1:573:May  4 20:02:58 SERVER2 kernel: session_stat: psize=8388608 pstrt=0 mshft=0 ioctls=3726
messages.1:574:May  4 20:02:58 SERVER2 kernel: session_stat: bhpgs=0 bhcnt=0 abhs=889 fbhs=889 dbhs=0
messages.1:575:May  4 20:02:58 SERVER2 kernel: session_stat: gpgs=515558 ppgs=515558 emmax=515361 emmin=483151 emcur=0 cached=0
messages.1:576:May  4 20:02:58 SERVER2 kernel: session_stat: rblk=41723 cblk=33 rcblk=34 rc2blk=0 mcblk=32 rwcolls=2
messages.1:577:May  4 20:02:58 SERVER2 kernel: session_stat: sync=0 async=33 aretr=0
messages.1:578:May  4 20:07:15 SERVER2 kernel: session_stat: dev=fd:0 state=6 blksiz

Can some body tell me what is the meaning of this messages are? Actually I was having some customized application malfunction at the same time this message appears.I need to analyze the same.For that I need the information regarding meaning of these messages.
 

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mesg(5) 							File Formats Manual							   mesg(5)

NAME
mesg - enable or disable System V IPC messages at boot time (OBSOLETE) DESCRIPTION
The tunable is obsolete. The System V IPC message subsystem is always enabled. Overview A System V message is just a sequence of bytes that can be passed between cooperating processes via a message queue. Messages can be of any length up to a tunable maximum. Messages larger than 64 bytes (not tunable) are stored in reserved kernel memory. Messages equal to or smaller than 64 bytes are allocated with the message header and therefore do not consume extra kernel structure to maintain the memory. Each message is "typed" with an application-specific number. Each message queue is referenced by a unique ID, and can contain multiple individual messages. The process receiving a message can get the "first" message (FIFO), the first of a specified type, the first of a group of types, or wait for a specific type to appear. WARNINGS
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun- able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see at AUTHOR
was developed by AT&T. SEE ALSO
ipcrm(1), ipcs(1), msgctl(2), msgget(2), msgrcv(2), msgsnd(2), msgmnb(5), msgmni(5), msgmbs(5), msgtql(5). OBSOLETE
Tunable Kernel Parameters mesg(5)
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