My LiFe StOrY

2016년 6월 16일 목요일

[EtC] mysql 한글 깨지는 경우

my.cnf 파일을 수정 하여 아래의 내용을 넣는다.

[client]
default-character-set = utf8

[mysql]
default-character-set = utf8

[mysqld]
init_connect = SET collation_connection = utf8_general_ci
init_connect = SET NAMES utf8
character-set-server = utf8
collation-server = utf8_general_ci

[mysqldump]
default-character-set = utf8

[EtC] tomcat startup 느려진 경우

INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [190,232] milliseconds.

tomcat startup 이 느려진 이유를 찾기 위해 catalina.log 를 보니, 위와 같은 메세지가 보이는 경우 catalina.sh 파일에 아래와 같이 추가 하도록 한다.

#!/bin/sh

JAVA_OPTS="$JAVA_OPTS -Djava.security.egd=file:/dev/./urandom"

참고 : tomcat 메모리 할당

#!/bin/sh

export CATALINA_OPTS="-server -Xms8192m -Xmx8192m -XX:PermSize=256M -XX:MaxPermSize=256M -XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:+AggressiveOpts"

2016년 6월 2일 목요일

[MySqL] mysql backup script

root@api:/usr/local/apache-tomcat-7.0.64# cat ~/mysql-backup.sh

#!/bin/bash

backupdir='/home/freecatz/MYSQL_BACKUP/'`date +%Y%m%d`
olddir='/home/freecatz/MYSQL_BACKUP/'`date -d "7 day ago" +%Y%m%d`

function FN_DB_BACKUP(){
echo $(date +%H:%M) - $1 DATABASE FULL BACKUP START.  >>  $backupdir/$1.log
mysqldump -uroot -p'qwer1234' $1 > $backupdir/$1.sql
echo $(date +%H:%M) - $1 DATABASE FULL BACKUP FINISH.  >>  $backupdir/$1.log
mysql -uroot -p'qwer1234' -e "SELECT TABLE_SCHEMA, CONCAT(FORMAT(SUM(DATA_LENGTH + INDEX_LENGTH) / (1024*1024), 2), 'MB') FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '$1'" | grep -v TABLE_SCHEMA >> $backupdir/$1.log
}


function FN_MK_DIR(){
mkdir -p $backupdir

if [ -d $olddir ]; then
rm -rf $olddir
fi
}


if [ ! -d $backupdir ]; then
FN_MK_DIR
fi


FN_DB_BACKUP DBTEST1
FN_DB_BACKUP DBTEST2
FN_DB_BACKUP DBTEST3

crontab 에 주기적으로 실행 시켜 두면 된다.

# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# m h dom mon dow user  command
17 *    * * *   root    cd / && run-parts --report /etc/cron.hourly
25 6    * * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6    * * 7   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6    1 * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )

00 23   * * *   root    /root/mysql-backup.sh
#

2016년 5월 26일 목요일

[Qt] String to QDate

QDate dt = QDate::fromString(ui->dateEdit->text(), "yyyy-MM-dd");

    switch(dt.dayOfWeek()){
       case 1:
            qInfo() << ui->dateEdit->text() << " 월요일 입니다.";
            break;
        case 2:
            qInfo() << ui->dateEdit->text() << " 화요일 입니다.";
            break;
        case 3:
            qInfo() << ui->dateEdit->text() << " 수요일 입니다.";
            break;
        case 4:
            qInfo() << ui->dateEdit->text() << " 목요일 입니다.";
            break;
        case 5:
            qInfo() << ui->dateEdit->text() << " 금요일 입니다.";
            break;
        case 6:
            qInfo() << ui->dateEdit->text() << " 토요일 입니다.";
            break;
        case 7:
            qInfo() << ui->dateEdit->text() << " 일요일 입니다.";
            break;
    }

[Qt5] Open Default Web Browser

#include 

    QDesktopServices::openUrl(QUrl("freecatz.blogspot.kr"));

[Qt5] Hardware Infomation

#include 

    qInfo() << QSysInfo::currentCpuArchitecture();
    qInfo() << QSysInfo::kernelType();
    qInfo() << QSysInfo::kernelVersion();
    qInfo() << QSysInfo::machineHostName();
    qInfo() << QSysInfo::prettyProductName();
    qInfo() << QSysInfo::productType();
    qInfo() << QSysInfo::productVersion();
    ....

[Qt5] UUID

#include 

    QUuid uuid = QUuid::createUuid();
    qInfo() << uuid.toString();

[Qt5] IP Address and MAC Address

.pro file

QT       += network

.cpp source file

#include 
#include 

    QString _MAC = "";
    QString _IP = "";
    
    QTcpSocket socket;
    socket.connectToHost("8.8.8.8", 53); // google DNS, or something else reliable
    if (socket.waitForConnected(3000)) {
//        qInfo() << socket.localAddress().toString();
        foreach(QNetworkInterface interface, QNetworkInterface::allInterfaces()){
            foreach (QNetworkAddressEntry entry, interface.addressEntries()){
                if(socket.localAddress().toString() == entry.ip().toString()){
                    qInfo() << socket.localAddress().toString() << " - " << interface.hardwareAddress();
                    _MAC = interface.hardwareAddress();
                    _IP = socket.localAddress().toString();
                }
            }
        }
    } else {
        qInfo() << socket.errorString();
    }

    socket.destroyed();

2016년 5월 20일 금요일

[EtC] tomcat server.xml

<?xml version='1.0' encoding='utf-8'?>


<Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.startup.VersionLoggerListener" />


<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />

<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />


<GlobalNamingResources>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>


<Service name="Catalina">





<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
disableUploadTimeout="true"
enableLookups="false"
URIEncoding="UTF-8" />






<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />




<Engine name="Catalina" defaultHost="freecatz.pe.kr" jvmRoute="tomcat1">




<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="8">

<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>

<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Membership className="org.apache.catalina.tribes.membership.McastService"
address="228.0.0.4"
port="45564"
frequency="500"
dropTime="3000"/>
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="auto"
port="4000"
autoBind="100"
selectorTimeout="5000"
maxThreads="6"/>

<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>
</Sender>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
</Channel>

<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>

<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>

<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>


<Realm className="org.apache.catalina.realm.LockOutRealm">

<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>

<Host name="freecatz.pe.kr"
appBase="webapps"
unpackWARs="false"
autoDeploy="false">
<Alias>freecatz.pe.kr</Alias>
<Context className="org.apache.catalina.core.StandardContext"
reloadable="true"
allowLinking="true"
cachingAllowed="true"
charsetMapperClass="org.apache.catalina.util.CharsetMapper"
cookies="true"
crossContext="true"
displayName="API Service"
docBase="/home/tomcat/webapps/freecatz.pe.kr/ROOT"
path=""
privileged="false"
swallowOutput="false"
useNaming="true"
workDir="/home/tomcat/server/apache-tomcat-8.0.43_1/work/freecatz.pe.kr"
wrapperClass="org.apache.catalina.core.StandardWrapper">
</Context>





<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />

</Host>
</Engine>
</Service>
</Server>

2016년 5월 19일 목요일

[MySqL] my.cnf backup

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
default-character-set = utf8

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0

[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking

init_connect = SET collation_connection = utf8_general_ci
init_connect = SET NAMES utf8
character-set-server = utf8
collation-server = utf8_general_ci
log-bin-trust-function-creators=1
log-error=/var/log/mysql/mysql-err.log
log-slow-queries=/var/log/mysql/mysql-slow.log

#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1

#
# * Fine Tuning
#
key_buffer = 128M
max_allowed_packet = 128M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
max_connections = 500
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M

#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#slow_query_log_file = /var/log/mysql/mysql-slow.log
#slow_query_log = 1
#long_query_time = 2
#log_queries_not_using_indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem

[mysqldump]
quick
quote-names
max_allowed_packet = 128M
default-character-set = utf8

[mysql]
default-character-set = utf8
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer = 16M

#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/