Quick reference for zookeeper commands
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This document provides syntax examples for common operations using ZooKeeper like creating znodes, getting and setting znode data, creating children, listing children, checking znode status, and removing znodes. The operations covered include creating standard, sequential, and ephemeral znodes, getting and watching znode data, setting znode data, creating child znodes, listing child znodes, getting znode status, and removing znodes. Examples are given for each operation syntax.
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![Create Znodes
=============
Syntax
------
create /path /data
create -s /path /data
create -e /path /data
Ex
--
create /FirstZnode "Myfirstzookeeper-app"
create -s /FirstZnode "second-data"
create -e /SecondZnode "Ephemeral-data"
--------------------------------------------------------------------------------
------------------------------------------------------
Get Data of a znode
===================
Syntax
------
get /path
Ex
--
get /FirstZnode
get /FirstZnode0000000003
--------------------------------------------------------------------------------
------------------------------------------------------
Watch Znode for Changes
=======================
Syntax
------
get /path [watch] 1
Ex
--
get /FirstZnode 1
--------------------------------------------------------------------------------
------------------------------------------------------
Set Data of a znode
===================
Syntax
------
set /path /data
Ex
--
set /SecondZnode "Data-updated"
set /FirstZnode "Mysecondzookeeper-app"
--------------------------------------------------------------------------------
------------------------------------------------------
Create Children of a znode
==========================
Syntax
------
create /parent/path/subnode/path /data
Ex
--
create /FirstZnode/Child1 "firstchildren"
create /FirstZnode/Child2 "secondchildren"
--------------------------------------------------------------------------------
------------------------------------------------------
List children of a znode](https://image.slidesharecdn.com/quickreferenceforzookeepercommands-151208154747-lva1-app6891/85/Quick-reference-for-zookeeper-commands-1-320.jpg)
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This curriculum vitae summarizes Devender Singh's qualifications and experience. He has passed matriculation and senior secondary examinations from CBSE and holds a BA in Arts. He has over 17 years of experience in security roles for the Indian Army, including as a security officer and manager of an Army petrol pump. Currently, he works as a hostel warden at Amity Group of Schools in Noida. He is proficient in Microsoft Office applications and Windows operating systems.
Dave bio data
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Dave bio data
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Capital onehadoopclass
The document describes setting up Hadoop in pseudo-distributed mode on a CentOS virtual machine instance. It details steps like creating a user account, installing Java and Hadoop, formatting the namenode, starting HDFS and YARN daemons, creating HDFS directories, and running a sample Pi estimation MapReduce job.
Mongodb workshop
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Ass hđh
The document outlines the steps to compile a custom Linux kernel and add a new system call. It describes creating a new partition, mounting it, downloading the kernel source, configuring and compiling the kernel, installing modules and files to boot directory. It also provides code for a new system call to generate a unique ID and tests the system call. The final sections discuss creating a patch file and rebooting with the new kernel.
Ass OS
The document provides instructions for compiling a custom Linux kernel and adding a new system call. It describes creating a new partition, mounting it, extracting and compiling the kernel source code. It also details adding a new system call to return a unique ID, including modifying configuration files, implementing the system call code, and testing the new system call. After compiling the kernel, the instructions describe installing modules, creating an initramfs, copying kernel files to the boot directory, and configuring GRUB to boot the new kernel.
Xss Xsrf
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Quick reference for curl
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Using MySQL without Maatkit is like taking a photo without removing the camera's lens cap. Professional MySQL experts use this toolkit to help keep complex MySQL installations running smoothly and efficiently. This session will show you practical ways to use Maatkit every day.
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Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
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Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
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Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
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at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar KanvariaLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
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9
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- 1. Create Znodes ============= Syntax ------ create /path /data create -s /path /data create -e /path /data Ex -- create /FirstZnode "Myfirstzookeeper-app" create -s /FirstZnode "second-data" create -e /SecondZnode "Ephemeral-data" -------------------------------------------------------------------------------- ------------------------------------------------------ Get Data of a znode =================== Syntax ------ get /path Ex -- get /FirstZnode get /FirstZnode0000000003 -------------------------------------------------------------------------------- ------------------------------------------------------ Watch Znode for Changes ======================= Syntax ------ get /path [watch] 1 Ex -- get /FirstZnode 1 -------------------------------------------------------------------------------- ------------------------------------------------------ Set Data of a znode =================== Syntax ------ set /path /data Ex -- set /SecondZnode "Data-updated" set /FirstZnode "Mysecondzookeeper-app" -------------------------------------------------------------------------------- ------------------------------------------------------ Create Children of a znode ========================== Syntax ------ create /parent/path/subnode/path /data Ex -- create /FirstZnode/Child1 "firstchildren" create /FirstZnode/Child2 "secondchildren" -------------------------------------------------------------------------------- ------------------------------------------------------ List children of a znode
- 2. ======================== Syntax ------ ls /path Ex -- ls /FirstZnode -------------------------------------------------------------------------------- ------------------------------------------------------ Check Status of a znode ======================= Syntax ------ stat /path Ex -- stat /FirstZnode -------------------------------------------------------------------------------- ------------------------------------------------------ Remove / Delete a znode ======================= Syntax ------ rmr /path delete /path Ex -- rmr /FirstZnode delete /FirstZnode Verification ------------ get /FirstZnode