Linux check list

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Install tools for operation.

yum install nano wget epel-release

Update

If you update some packages, your config files override with new ones. You can find old files with rpm extension in same directory.

Latest Packages

Some linux distributions update their package with delay. IUS is good option for using latest package. You can get IUS package list here and install them with below command.

Install ius rpm package first:

yum install https://centos7.iuscommunity.org/ius-release.rpm

Use u suffix for Installing package from ius repo. For example use below for installing git 2.x:

yum install git2u

Postgres

Download rpm package, check this list for other versions.

wget https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm

Install package.
rpm -i pgdg-centos96-9.6-3.noarch.rpm
yum install postgresql96-server postgresql96-contrib
/usr/pgsql-9.6/bin/postgresql96-setup initdb

Create db and user.

su postgres
createuser --interactive
createdb -O myuser mydb

Run psql for setting password to new user.

psql
ALTER USER mydbuser WITH PASSWORD 'mynewpass';
\q

Proxy

If you need proxy you can use nginx. You need give permission to nginx for accessing http resources.

setsebool httpd_can_network_connect true -P

Check nginx.log with

tail -10f /var/log/nginx/error.log

php & php-fpm

Use IUS for latest release, php72u.

Permissions overwritten after update, check /var/lib/php/fpm permissions.

Java

JRE

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jre-8u181-linux-x64.rpm"

yum localinstall jre-8u181-linux-x64.rpm

JDK
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.rpm"

Firewall

firewalld

My hybris development environment test

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I am using my company mac pro 2015 for a lot of thing. So I need different environment look like C#, hybris, ABAP, etc. These environment needs service look like db. These service using my ram always. So I am using VM for environment which are not used often. I created VM for new hybris versions for testing (docker cannot pause / resume systems yet). I try some scenarios for my best hybris development environment.

VM: OS version Centos 7, Java 8 u162, MySQL 5.7.21 and hybris version 6.6.

Enviroment Compile time (ant clean all)
Hybris files in host shared with guest vm 21 minutes 9 seconds
Hybris files in guest vm 3 minutes 8 seconds
2 minutes 29 seconds
Hybris files in guest vm and shared with host (without nfs optimization)  5 minutes 44 seconds

 

DB connection for DDL in groovy

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DANGER!!!

In hybris hac, you cannot run DDL (data definition language) commands. You need unprotected connection to db. You can use below example. DDL commands are dangerous!!!

import java.util.List;
import javax.sql.DataSource;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

def config = spring.getBean("configurationService").getConfiguration();

DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(config.getString("db.driver"));
dataSource.setUrl(config.getString("db.url"));
dataSource.setUsername(config.getString("db.username"));
dataSource.setPassword(config.getString("db.password"));
JdbcTemplate jdbc = new JdbcTemplate(dataSource)
jdbc.execute("ALTER TABLE MYTABLE ALTER (P_MYFIELD BIGINT)");

Using separate file for different class logging

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Below example logging flexiblesearch class to separate file with time based trigger policy. Also we can add rollover strategy for removing old files.

log4j2.appender.FlexlogAppender.type=RollingFile log4j2.appender.FlexlogAppender.name=FlexlogAppender
log4j2.appender.FlexlogAppender.fileName=${HYBRIS_LOG_DIR}/Flexlog.log
log4j2.appender.FlexlogAppender.filePattern=${HYBRIS_LOG_DIR}/Flexlog.log-%d{yyyy-MM-dd}.log
log4j2.appender.FlexlogAppender.ImmediateFlush=true log4j2.appender.FlexlogAppender.layout.type=PatternLayout
log4j2.appender.FlexlogAppender.layout.pattern=%m%n log4j2.appender.FlexlogAppender.policies.type = Policies
log4j2.appender.FlexlogAppender.policies.time.type = TimeBasedTriggeringPolicy log4j2.appender.FlexlogAppender.policies.time.interval = 1000000
log4j2.appender.FlexlogAppender.policies.time.modulate = true log4j2.logger.flexible.name = de.hybris.platform.jalo.flexiblesearch
log4j2.logger.flexible.level = DEBUG log4j2.logger.flexible.appenderRef.stdout.ref = FlexlogAppender log4j2.logger.flexible.additivity = false

Installing SAP Netware ABAP 7.51 SP02 on CentOS 7 Minimal

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You can find great documentation for installing SAP Netware ABAP 7.51 SP02 at Julie blog post. I didn’t use shared OS because of huge disk/ram usage.

Prerequest

Install your favorite text editor

Install nano, vim, etc with yum.

yum install nano
Enable ssh for root

You can open multiple terminal and make copy paste with ssh to your server.

nano /etc/ssh/sshd_config

Remove # for uncomment line “PermitRootLogin yes” or add it if missing.

service sshd restart

Disable firewall

You need to open a lot of port for SAP Netware in firewall. You can disable firewall instead of configuring it.

service firewalld stop
systemctl disable firewalld
Install uuidd package

SAP Netware using uuidd library for generating GUID, install it.

yum install uuidd
Install vmware tools and shared folder

Install open-vm-tools.

yum install open-vm-tools

You can find vmware tools in VMWare Virtual Machine menu as Install VMware Tools. Then you can check /mnt folder for CD which including tools. Copy it to your temp.

cp VMwareTools-10.x.tar.gz /tmp
tar -zxvf VMwareTools-10.x.tar.gz

Install python for tools installer.

yum install python

Change directory to extracted folder then run tools installer.

phyton install vmware-install.pl

Installation

Start installation script with below arguments.

./install.sh -g -s

Known hybris strategies

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Strategy Interface Description
DefaultCommerceCloneSavedCartStrategy  Clone cart.
DefaultCloneAbstractOrderStrategy  Clone order.
DefaultCommerceAddToCartStrategy CommerceAddToCartStrategy Adding product to cart.
DefaultMultiCodeCouponRedemptionStrategy CouponRedemptionStrategy<>  Single code coupon redemption.
DefaultSingleCodeCouponRedemptionStrategy CouponRedemptionStrategy<>   Multi code coupon redemption.

 

Delete all item by type

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You can delete all item by type with impex. Below example removing all stock levels.
REMOVE StockLevel[batchmode=true];itemType(code)[unique=true]
;StockLevel

Update object private property with groovy

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You can update private field an object with below sample code.

def myBean = spring.getBean("myBean");

def f = myBean.getClass().getDeclaredField("myField");
f.setAccessible(true);
f.set(myBean, "new string value");

Changing item attribute type in hybris

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Some times you need attribute type change in hybris. Hybris as own ORM and it is not support updating attribute type. If you change attribute type you will get error like this:

de.hybris.platform.servicelayer.exceptions.ModelSavingException: <########## NewPropError ##########> value type mismatch in unlocalized property ‘myproperty’ of ‘myitem’ : expected ‘class java.lang.Integer’ but got ‘class java.lang.Long’

If you don’t want to adding new field than migrating data and removing old, you can use below procedure.

  • Change column type in DB. You cannot do this on hac because DDL disabled.
  • Update system in hac (Platform -> Update without Create essential data option).

Mount shared folder in VM

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You can use below command for mount shared folder to VM guest. You need install vmware tools before use this.

/usr/bin/vmhgfs-fuse .host:/ /mnt/hgfs -o subtype=vmhgfs-fuse,allow_other