Tutorial Background:It usually takes the following three steps to compile and install the program source code:./configure à make install
Step 1: Execute the configure script in the source code pathThe purpose of this step is: a. Check whether the
To sum up the software installation in Linux, we should know that there are two ways to install the software: one is to install the software package, that is, to install the rpm package, this means that these packages are compiled binary rpm
Prepare for CentOS compilation and installation of Apache 2.4:
[Root @ NFSServer ~] # Yum groupinstall "Development tools"
Download the latest httpd, apr, apr-util from the http://httpd.apache.org and decompress
[Root @ NFSServer ~] # Tar zxvf apr-1.
Introduction to the spine plug-inConsidering the increasing number of machines in the production environment, the cmd provided by the system. php polling may not be able to complete collection of all machines at the set time. You can change the
1. hbase cluster construction process (based on the hbase pseudo distribution on the original Hadoop1)
1.1 cluster structure, master node (hmaster) is hadoop1, slave node (region server) is hadoop101 and hadoop102, hadoop103
1.2 modify hbase files
In network services, web services are essential in people's lives. people browse webpages on their websites every day to obtain the latest information, how is web Service implemented as an interactive platform? Of course, we cannot leave our website
DirectoryPreface1. Related Environment2. Get code3. Install Hadoop4. Install Native Lib5. Installation Complete6. Related Links
PrefaceRecently, CDH4.5 needs to be installed. After the restart, the system prompts that native lib is missing. After
1. Install lzop:Yum-y install lzop
Ii. Install lzo1. wget http://www.oberhumer.com/opensource/lzo/download/lzo-2.06.tar.gz2. tar-zxvf lzo-2.06.tar.gz3. Music lzo-2.06 lzo & cd lzo4. export CFLAGS =-m645../configure-enable-shared6. make & make
I. symptom
Hadoop process CPU accounts for 800%
Ii. query Problems
1. TOP
Z highlight
H display thread
<> Page flip
2. Jstatack
Sudo-u admin jstack 97932 | less
2014-03-20 21:45:45Full thread dump OpenJDK (Taobao) 64-Bit Server VM
1. Create a Hadoop user [all operations are root, on all master and slaver]1) create a hadoop User: adduser hadoop2) Change Password: passwd hadoop========================================================== ============================================
No matter what scheduling algorithm you use, requests from the same customer will be sent to the same server within a certain period of time. By default, the connection timeout is 360 seconds, but you can define this value by yourself, if the
The configuration file of CentOS 6.5 DNS is correct, but it cannot be resolved.
When we configure a DNS resolution file, we usually copy its template to modify it. Because Centos 6.5 adds permission management, therefore, when we copy the template
NIS is mainly used for identity authentication.
Verification Method
1. Local authentication,
2. The network is the domain used for authentication in windows, DC and nis in linux. Master and slave are relatively simple compared with windows domains,
Overview
Storm ensures that each tuple is processed at least once to provide reliable data processing. The most frequently asked question about this is: "Since tuple may be overwritten for launch (replay), how can we make statistics on the number of
Directory 1. Install openjdk1.7.0.11.1 run the installation command... 11.2 check that Java is successfully installed... 22. Install JBoss7.1.1. 22.1 Download jboss7.1... 22.2 Add a user... 22.3 set boot startup... 52.4 grant the execution
1. Introduction to RHCS
RHCS is the abbreviation of Red Hat Cluster Suite, which is the Red Hat Cluster Suite. RHCS is a Cluster tool set that provides high availability, high reliability, load balancing, storage sharing, and low cost, it integrates
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