timed out waiting for input: auto-logout

The connections to Linux server got disconnected with message “timed out waiting for input: auto-logout”.

It is an unhappy thing when you are run some kind of long running scripts or database SQLs.

The issue is coming from the variable ‘TMOUT’ in Linux environment.

$  cat /etc/profile.d/autologout.sh
export TMOUT=36000

$ grep TMOUT /etc/profile
TMOUT=14400

$ echo $SHELL
/bin/bash


$ cat /etc/bashrc|grep  TMOUT
TMOUT=3600

If you want to disable timeout, then reset variable TMOUT=0

$ export TMOUT=0

How to Check Process Memory Usage in Linux

This post demonstrates how to check a process memory usage in Linux. While there are system resource issues, it is always helpful to identify the root cause by checking suspected process memory usage, which can be memory leaking from time to time.

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network unreachable resolving ‘./NS/IN’ or ‘./DNSKEY/IN’

While checking named status on Oracle Linux, the following warnings occur:

# systemctl status named
..
.
May 17 20:40:59 HOSTNAME named[8468]: network unreachable resolving './NS/IN': 2001:500:1::53#53
May 17 20:40:59 HOSTNAME named[8468]: network unreachable resolving './DNSKEY/IN': 2001:500:2d::d#53
..
.

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How to Disable Transparent HugePages on Oracle Linux 7

It is recommended by Oracle to disable Linux native Transparent HugePages on Oracle database servers, to avoid potential Oracle database performance issues.

This post introduces how to disable Linux native Transparent HugePages, and verify Transparent Hugepages disabled or not.

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PRVG-11551 : Required version of package “cvuqdisk” was not found

Run runcluvfy.sh for pre-upgrading GI from 12.1.0.2 to 12.2.0.1, and get “PRVG-11551 : Required version of package “cvuqdisk” was not found” warning.

$pwd
/u01/app/12.2.0.1/grid

$ ./runcluvfy.sh stage -pre crsinst -upgrade -rolling \ 
              -src_crshome /u01/app/12.1.0/grid     \
              -dest_crshome /u01/app/12.2.0.1/grid  \
              -dest_version 12.2.0.1 -fixup -verbose


Verifying Package: cvuqdisk-1.0.10-1 ...FAILED
racnode2: PRVG-11551 : Required version of package "cvuqdisk" was 
not found on node "racnode2" [Required = "cvuqdisk-1.0.10-1" ; Found =
"cvuqdisk-1.0.9-1"].

racnode1: PRVG-11551 : Required version of package "cvuqdisk" was not found on
node "racnode1" [Required = "cvuqdisk-1.0.10-1" ; Found =
"cvuqdisk-1.0.9-1"].

The old version package was installed.

[root@racnode2 grid]# rpm -qa | grep -i cvu
cvuqdisk-1.0.9-1.x86_64

Find the new cvuqdisk package from new GI HOME binary , and install ( -i ) or upgrade it ( -U ).

[root@racnode2 ~]# cd /u01/app/12.2.0.1
[root@racnode2 12.2.0.1]# cd grid

[root@racnode2 grid]# pwd
/u01/app/12.2.0.1/grid

[root@racnode2 grid]# find ./ -name cvuqdisk*
./cv/rpm/cvuqdisk-1.0.10-1.rpm
./cv/remenv/cvuqdisk-1.0.10-1.rpm

[root@racnode2 grid]# rpm -Uv ./cv/rpm/cvuqdisk-1.0.10-1.rpm
Preparing packages...
cvuqdisk-1.0.10-1.x86_64
cvuqdisk-1.0.9-1.x86_64
[root@racnode2 grid]# rpm -qa | grep cvuqdisk
cvuqdisk-1.0.10-1.x86_64
[root@racnode2 grid]#