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  • HOME
  • Angular
    • Angular – Testing with Protractor
    • Angular 6: Using Karma for Unit Testing
    • Create an NGINX docker Container on Windows Pro
    • Using Angular 6
    • Using Bootstrap
  • RAC & ASM
    • 12.2 related Articles
      • Convert database to Policy Managed
    • 12c feature
      • Pluggable DB
      • FLEX ASM
      • LEAF Notes in 12c
      • HANFS
      • Management Repository
      • Recreate MGMT DB
      • Crsctl EVALUATION command
    • RAC Tools
      • Orachk
      • OSWatcher
        • OSWatcher Usage
        • Debugging Node Eviction
      • Cluvfy
        • Cluvfy Usage
        • Common cluvfy errors
        • Debug Cluvfy: PRVF-9802
      • Cluster Health Monitor
        • Debugging Node Eviction
        • Display CHM in tabular form
        • Cluster Health Monitor
        • Display data with oclumon
      • OUI / Opatch
        • Oracle Installer OUI
        • Install newest Opatch
        • Opatch
      • Monitoring with ORATOP
      • RACCheck
      • Procwatcher Usage
      • TFA Collector Usage
    • ASM/ACFS/DBFS
      • Diag/Errors/Overview
        • Generic ASM Overview
        • Using KFOD, KFED, AMDU
        • Useful ASM Commands
        • Diagnostics for ASM
        • ASM doesn’t start CRS-1714
        • ORA-15040, ORA-15042 error
        • root.sh : CLSRSC-366
      • ACFS
        • ACFS – A closer look
        • ACFS 12.1 installation
        • ACFS 11.2 install
        • ACFS Snapshots 11.2
        • Mount error : ACFS-2017
      • DBFS
        • Errors mounting DBFS
        • Setup DBFS
      • DNFS
        • DNFS 11.2.0.4 3
      • ISCSI/Multipath
        • OPENFILER – Multipath setup
      • ASM Operations
        • md_backup / mount DG
        • Create/Drop DG
        • Cancel DROP Disk
        • Rename ASM disk
        • Rename Diskgroup
      • Recovering DG
        • OCR DG lost all disks
        • OCR DG lost single disk
        • Recovering FRA DG
      • Block/Disk corruption
        • Locate ASM bloks
        • Fixing block corruption
        • Using kfed repair
      • ASM and Udev
        • UDEV for Multipath env
        • Udev for ASM devices
      • ASM SPfile
        • Using ASM spfile
        • How ASM reads a spfile ?
    • RAC NETWORKING
      • Setup DNS, NTP,DHCP
      • Change Public IP
      • Verify CI device
      • Debugging Network
      • GNS
        • GNS SCAN Timeouts
        • Recreate GNS 12102
        • GNS Overview and Usage
        • Recreate GNS 11204
        • Cleanup GNS
      • HAIP
        • Add network to HAIP
        • Debug HAIP
      • SCAN Listener
        • Recreate SCAN listeners
        • Print Scan Listener status
        • Restart Scan Listener
      • VIP
        • Change VIP to ONLINE status
      • Static Listener Config
      • Nodeapps
        • Change NETMASK,+ …
        • Change CI IP address
        • Switching CI device
    • Troubleshooting
      • Debug HAIP
      • Debugging GIPC
        • DEBUG GIPC
        • GIPC Defects
      • Debugging Network/Listener
        • Debugging Network
        • Debug RAC listener
      • Using ISDE and TFA WEB
      • Debugging Node Eviction
      • Debug CRS OHASD startup
      • Debugging DRM
      • DEBUG Install problems
      • Debug Upgrade Problems
      • Reading LMBH trace file
      • Analyze logs using TINTs
      • Tracing LMS with set_ev
    • ClusterWare
      • Resources
        • Who stops my resource ?
        • Recreate database resource
        • Managing Resources
        • Add/remove RAC instance
      • CRS
        • Pin and Unpin a node
        • Switch CRS stack
        • CRS versions
      • OLR, OCR and Votedisk
        • Full OCR reconfig
        • Restore OCR from backup
        • Backup and Recover OLR
        • Relocate OCR Voting Disks
        • Cleanup CRS 10g, 11g
        • Recreate 11.2 OCR
        • Find OCR Master Node
      • GPnP
        • Fix profile.xml problems
        • Grid Plug and Play ( GPnP )
      • CRS_STARTUP_Problems
        • Debug CW with DTRACE
        • Address already in use
        • GIPC error [29] msg
        • Debug CW startup
      • CW – Errors/Corruption
        • GIPCD Errors
        • Startup db – CRS-2643
        • Drop DG: CRS-222 CRS-2730
        • CRS-210 / OCR corruption
        • Add Node ORA-12519
      • CW with 3rd party
      • Recreate 10.2 Nodeapps, ..
    • Cache Fusion II / DRM
      • A closer look into DRM
      • Cache Fusion II
      • Mapping res and ROWID
    • Install/Upgrade/Cloning
      • root.sh / rootupgrade.sh
        • Rerunning root.sh
        • Rerunning rootupgrade.sh
      • Upgrade
        • Downgrade to 11.2.0.3
        • Upgrade to 11.2.0.4
        • Debug Upgrade Problems
        • Upgrade FLEX ASM
        • Upgrade PDB to 12.1.0.2
        • OUI hangs at 7%
      • Install
        • Install RAC 12cR2 PM
        • Install RAC 12.1.0.2 PM
        • Recreate OUI Inventory
        • Creating Groups, Users
        • Setting ORACLE_BASE
        • DEBUG Install problems
        • RAC One Node ( 12c )
        • Install 12.1/GNS/ASMLib
        • Install 11.2.0.4/GNS
        • Install 11.2.0.3/GNS
        • Install CRS 10.2.0.1 OEL 5.10
        • Install RAC 10.2.0.1
      • Cloning/Addnode
        • 12c: Delete Node
        • 11.2: clone CRS
        • Add Node 11.2
        • 10.2.0.1 Add Node
      • CRS CLEANUP
        • Cleanup 11.2 CRS installation
        • Cleanup failed CRS 10.2 install
        • Manually delete 11.2 CRS
        • Removing node – 10.2.0.1
      • Kernel UPGRADE
        • UEK 3.8.13 OEL 6.5 upgrade
    • PATCHING
      • Using datapatch with RAC
      • Manual apply CW Patch
      • PSU Patching Info
      • Opatch auto error
      • Installing PSU11.2.x.x.x
        • Install/Deinstall PSU 11.2.0.4.4
        • Install PSU 11.2.0.3.11
        • Install PSU 11.2.0.4.3
        • Manually apply 11.2.0.4.2
        • Install PSU 11.2.0.3.8
        • PSU 11.2.0.3.8 – 30 Installation steps
        • Install Grid PSU 11.2.0.3.4
      • Install Patch Set 10.2.0.5
      • Tracking PSU patches
      • Deinstallation PSU 11.2.0.3.8
    • Performance
      • Overview / Important Docs
        • 12c Perf Guide – Michael Zoll
        • RAC Performance Overview
        • RAC Wait Events Summary
      • Specific GC Wait Events
        • RHS: Gc buffer busy release/ acquire
        • GC CR Block 3-Way/Block Busy Wait Event
        • Sequence – SV contention
        • Gcs Log Flush Sync
      • AWR / ASH and EM related
        • RAC AWR sample
        • Create ASH dumps
        • RAC and ASH reports
        • Tuning with AWR/EM
      • GES Locks and Deadlocks
      • Log File Sync Wait Event
        • Log File Sync wait event and SSD disks
        • Redo Log Write Perfr. with dd
        • CPU starvation/Schedule
        • Using lfsdiag.sql and iostat
    • Policy Managed Database
      • Loosing a cluster node
      • Convert to PM database
      • PM database / CRS-2643
      • ORA.-1031 after convert
      • Overview Serverpools
      • Managing Server Pools
      • Serverpools in Action
    • Node_Eviction
      • Eviction Overview
      • CPU/Swapping eviction
      • Missing Network HB
      • Missing Voting Disks
      • Node Eviction – CSSD hang
      • Member Kill Eviction
    • RAC Admin
      • Reduce SGA/PGA Memory
      • Add/ Remove Instance
      • Managing REDO logs
        • REDO logs to SSD Disk
        • Switch Logfile hangs
      • FRA
        • FRA: Duplex controlfile
        • FRA: Duplex REDO logs
      • Fix SPfile problems
      • RMAN and Backup
        • RMAN usage and commands
        • Backup and Recovery
      • Using RDA
    • Services
      • Working with Services
      • Who stops my service ?
      • Failover testing
    • Oracle RESTART
      • Install Oracle Restart 12c
      • Reconfigure HAS
    • RAC Generic
      • NFS mount CW logfiles
      • RAC Scripts
      • Startup Problems
        • ORA-27303
        • ORA-1172, ORA-1151
        • ORA-214
        • ORA-1110
  • XA & TX mgmt
    • Tx recovery in a RAC env
    • TPM code RAC/XA
    • Perf RAC/XA Tx
  • Linux
    • Installing Dtrace on OEL 7.3
    • Using Dtrace OEL 6.X
    • Display Linux version
    • UEK3 OEL 6.5 upgrade
    • Linux Performance
      • About Context Switches
      • Linux performance tools
      • Linux Scheduler
      • Set OS prioroty/CPU affinity
      • Create Log File Sync wait
    • Linux Space
      • Expand an XFS Filesystem
      • Cleaning Buffer Cache
      • Shrinking XFS root LV
      • Logical Volume operations
      • Using parted
      • Mapping of /dev/dm-0
      • Increase LVM space
      • Add swap to LVM
      • Linux partition layout
      • Simulate I/O errors
    • Linux Network
      • What process occupies a port ?
      • Setup Chrony
      • Using tcpdump
      • Using route command
      • Using NTP
      • NFS mount Solaris Box
      • Block TCP traffic
    • UDEV
      • Multipath setup for RAC/ASM
      • Configure udev rules for ASM devices
      • UDEV setup for 10g RAW devices
    • YUM_and_RPM
      • Using Linux installer Yum
      • RPM commands
    • Disable firewall on OEL 6
  • VirtualBox
    • Restart USB Mouse Driver
    • Mixed RAC/ Internet Access
    • Move VDI to new system
    • VirtualBox Errors
      • Cannot register hard disk
      • VERR_VD_IMAGE_READ_ONLY
      • Vbox Crash / low memory
      • AltGr key no working
      • Clipboard not working
    • Moving .vbox and .vdi files
    • VM details via CMD
    • Configure Network
    • Attach Shared Devices
    • Install Guest Additions
  • IDE
    • Debugging JavaScript and WordPress
    • Debugging with Netbeans
    • Copy a Maven JPA project
  • JEE7 / Weblogic / Wildfly
    • Payara
      • Payara Server 4.1 fails with https Connections
    • Using IntelliJ/Android Studio
    • JEE7: Using Logging with SLF4j
    • JEE7: Using Resources
    • WildFLY
      • Installation and First Steps
      • Using logback
      • 2PC with RAC
      • UCP Pool & RAC
      • JDBC & Arquillian/JUnit
      • WildFLY & UCP & XA
      • Using Oracle JDBC driver
      • Object Factory & Singleton
      • JNDI & Simple OBJECTs
      • Clean Tx from LOG-STORE
      • Wildfly Configuration Tasks
    • JUnit, JMeter,Webdriver, ..
      • JMeter
        • JMeter first steps
        • RAC, Jmeter and AWR
        • Tuning VirtualBox and JMeter
      • Using WebDriver
      • JUNIT and Threads
    • Servlet
      • Using ServletContextListener
    • JNDI lookup of REMOTE EJBs
    • JEE7 and JDBC
    • Weblogic 12.1.3 first steps
    • Maven
      • Maven & Oracle JDBC
      • Maven Commands and Usage
    • JPA 2
      • Using JPA ( Transactions and more )
      • A First JPA Sample
      • JPA 2-Phase-Commit
      • Best practice to close EMF
      • Using Eclipselink
      • JTA in a Web Application
      • Using a Sequence
      • JPA Overview
      • Hibernate: DialectResolutionInfo cannot be null
    • JSF
      • Using JSF 2.2
  • MISC
    • EM
      • EM and RAC
      • Crsctl eval delete ..
    • Windows
      • Lsof for windows
      • XMing and Putty on Win 7
      • System_error_53
    • JAVA
      • Send email via Java
    • RDBMS
      • Send_email_from_database
      • RDBMS Temp Space Usage
      • Switching AMM to ASMM
      • ORADEBUG
  • OCP
    • Recovering SPFILE
    • Recover control files
    • DB in ARCHIVELOG
    • DB in NOARCHIVELOG
    • Recover tablespace
    • Incomplete Recovery
    • Using Image Copies
    • Using Block Media Recovery
    • Duplicate database
    • TSPITR
  • Java & Jdbc
    • Java Iterator
    • Using Java8 Features
    • Threads
      • Thread-safe Counter
      • ExecutorService,Callable
    • Java: Static Inner Classes
    • Java: Inner Classes
    • JUNIT and Java
    • Annotation and Reflection
    • Singleton class & Asserts
    • (Un)Loading Static fields
    • JAVA References
    • JAVA: ARM
    • Using Javadoc
    • ConcurrentModificationException looping through an ArrayList and deleting elements
    • JVM loader violoation
    • JDBC
      • UCP & FCF & RAC
    • Send SSL encoded Email from Java
  • HTTP
    • HttpSession Object
  • Web Dev
    • CSS HTML Stuff
      • Multiple Class / ID and Class Selectors
      • Use CSS to reorder DIVs
    • Double Click on GMaps
    • Debugging with Firebug
    • Google Maps Tips
      • SVG Markers
      • Markers disappear
      • Working with GpsVisualizer
  • JavaScript
    • Closures and Lexical Scoping
    • Using Recursions and Closures
    • Maximum call stack size exceeded
    • Calling function from String
    • Google Dev Tools Tips
    • Ajax and Timeouts
    • Object Reflection
    • Prototypal Inheritance
    • Exception Handling
    • My JavaScript Secrets
  • WordPress
    • Basic Collapsible with Bootstrap
    • WordPress function.php
    • Debugging JavaScript and WordPress
    • Add 2.nd BLOG to XAMPP
    • IP Change for WordPress Sites
    • First Steps with 2017 Theme
    • Testing your WordPress Page
    • PlugINs and Editor Setting for WordPress Projects
    • Child Theme /File Locations
    • Ajax Requests
    • WordPress Details
    • Duplicator PlugIn
  • Project Details
    • Javascript Project Summary
  • Bash
    • GIT Commit Command via bash
  • Web Development
    • SVG Samples
    • Unit Testing with Netbeans [Mocha]
    • Using ESLint
    • Using cURL with a CSRF token protected Login
    • Using GIT
    • Decrypt HTTPS traffic
    • Using Selenium WebdriverJS
  • Node.js
    • First Node.js project
  • PHP
    • Using PHPUnit
    • PHP and Reference Operator &
    • PHP Static Class
    • CORS Details
    • XML Parsing
    • PHP Tips and Errors
    • Handling Parse Errors
    • Using Arrays with AJAX
  • JUNIT
    • JUNIT and Java
  • JSF and Primefaces
    • Enum with JSF and Primefaces

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