chronyc node synchronization

To force a node to synchronize its time:

# chronyc -a 'burst 4/4'
# chronyc -a makestep

Monitoring user SYS will expire in -32,799 hours

 

Modifying EM Metric Threshold in bulk

1. Login.

./emcli login -username=sysman

2. Select from oms repository.

select './emcli modify_threshold -target_name="'||A.target_name||'" -target_type="oracle_database" -metric="sizeOfOSAuditFiles" -column="FILE_SIZE" -warning_threshold="1000" -critical_threshold="2000" -force' from sysman.MGMT$METRIC_COLLECTION A
where A.target_type='oracle_database' and A.metric_name='sizeOfOSAuditFiles'

3. Execute the result.

SYSMAN issue - ORA-25226: dequeue failed, queue SYSMAN.MGMT_ADMINMSG_BUS is not enabled for dequeue

SYSMAN issue:

java.sql.SQLException: ORA-25226: dequeue failed, queue SYSMAN.MGMT_ADMINMSG_BUS is not enabled for dequeue

ORA-06512: at "SYSMAN.EM_ADMINMSG_BUS", line 294

ORA-06512: at line 1

Solution:

Stop the OMS.

exec dbms_aqadm.start_queue('SYSMAN.EM_PC_TP',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_LOADERJOB_QUEUE',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_ADMINMSG_BUS',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_GROUP_EVENT_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_JOB_STATUS_UPD_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_LOADER_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_EVENT_BUS',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_TASK_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_CNTR_QUEUE',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_HOST_PING_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_NOTIFY_INPUT_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.MGMT_NOTIFY_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_NOTIFY_Q',true,true);

exec dbms_aqadm.start_queue('SYSMAN.EM_SYSTEM_EVENT_Q',true,true);

Start the OMS.

PS:

select 'exec dbms_aqadm.start_queue(''SYSMAN.'||name||''',true,true);' from all_queues 

where trim(enqueue_enabled) = 'NO' 

and owner='SYSMAN'

and queue_type='NORMAL_QUEUE'

Install tensorflow-gpu 2.3 + keras-gpu 2.3.1 using Anaconda 1.9.12 and Python 3.6 on Windows

Run anaconda with admin privileges

1. conda install tensorflow-gpu==2.1

2. pip install tensorflow --upgrade 

3. conda install keras-gpu

Oracle Free Cloud credit card issues

Oracle said:
we do not accept virtual cards or prepaid cards.
(мы не принимаем виртуальные и препэйд карты)

Check your card
Prepaid option must No
(Prepaid должен быть No)

nginx upgrade from 1.12 to 1.15

# rpm -qa| grep nginx
nginx-filesystem-1.12.2-2.el7.noarch
nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64
nginx-mod-http-perl-1.12.2-2.el7.x86_64
nginx-mod-http-geoip-1.12.2-2.el7.x86_64
nginx-mod-mail-1.12.2-2.el7.x86_64
nginx-1.12.2-2.el7.x86_64
nginx-all-modules-1.12.2-2.el7.noarch
nginx-mod-stream-1.12.2-2.el7.x86_64
nginx-mod-http-image-filter-1.12.2-2.el7.x86_64

cd /etc/yum.repos.d/

vi nginx.repo
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/centos/7/$basearch/
gpgcheck=0
enabled=1

mkdir /etc/systemd/system/nginx.service.d
printf "[Service]\nExecStartPost=/bin/sleep 0.1\n" > /etc/systemd/system/nginx.service.d/override.conf

yum update nginx

systemctl daemon-reload
systemctl restart nginx
systemctl status nginx
netstat -plunt | grep nginx

#  rpm -qa| grep nginx
nginx-filesystem-1.12.2-2.el7.noarch
nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64
nginx-mod-http-perl-1.12.2-2.el7.x86_64
nginx-mod-http-geoip-1.12.2-2.el7.x86_64
nginx-mod-mail-1.12.2-2.el7.x86_64
nginx-all-modules-1.12.2-2.el7.noarch
nginx-1.15.10-1.el7_4.ngx.x86_64
nginx-mod-stream-1.12.2-2.el7.x86_64
nginx-mod-http-image-filter-1.12.2-2.el7.x86_64