1th Chapter MySQLFailure Cases: 1.1Background Notes:MySQL architecture does not have a master-slave replication system and does not backup on timeThere are two libraries conf libraries and Jira libraries in the database, only one copy of the backup data , or a year ago1.2Failure Scenarios:unexpected downtime , resulting in physical damage to the disk, which means that the Jira files in the data directory in
-f nohup.out[Email protected] insurance]$ sh startweblogic.shUnzip zip[Email protected] tianruicai]$ Unzip Apache-jmeter-2.13.zipCompress filesTAR-ZCVF Airsale-_20170720-_bug.tar AirsaleUnzip the fileTAR-ZXVF Airsale_2017_07_04.tartgz File DecompressionTAR-ZXVF weblogic12fix+jdk1.8.tgzEnvironment variable ConfigurationYou need to configure the JDK yourself to place the JDK in the/u01/jdk1.8.0_144Vim ~/.bash_profilePath=/u01/jdk1.8.0_144/bin: $PATH: $HOME/binExport PATHLogin in effect againSave c
/update_1.2.xTo learn more about other versions of Subclipse, and for more information about the Subclipse plugin, visit the web site of the Subclipse project :http://subclipse.tigris.org/ . 3.1.2. Installing MylynTo install Mylyn with integrated Jira support, add Mylyn extras eclipse Update URL If your organization uses Atlassian ' s JIRA2 toFollow the questions and you will need to do so. Use the following update site to installMylyn:? Mylyn (Eclips
Youngstrom created a feature request in spring Jira that required support for the container-free WEB application Architecture in the Spring framework. He talked about configuring the Web container service within the main container boot spring container. Here is an excerpt from the JIRA request:
I think spring's WEB application architecture can be greatly simplified if it provides tools and referen
-step come, start $ (atlassian_home)/**/, directory of start_crowd.sh;
There is a mistake, that is to find java_home path, because I edited in the/etc/profile file, will java_home written in, use root users can, the general official website proposed a new Jira user, to run the Jira program.5. In the browser input http://ip:8095/, you can enter, follow the prompts step by step;Enter URL:
Enter the serial nu
. Participate There's a lot of exciting work to do in the near future. We are actively studying such functions as dynamic resource allocation, dependency clustering, support for PYSPARKSPARKR, support for the kerberized HDFs cluster, and client-side mode and the interactive execution environment of popular notebooks. For those who fall in love with Kubernetes's way of managing applications declaratively, we are also committed to kubernetes operator Spark-submit, which allows users to declar
. This is a minor bug in the current version:
https://issues.apache.org/jira/i#browse/YARN-1289
2013-10-30:
Configure Fairscheduler ACL, find not working, either update queue or restart Resourcemanager,acl or not
Actually, it's a bug:https://issues.apache.org/jira/i#browse/yarn-1288.
This issue has been resolved: http://blog.csdn.net/baiyangfu_love/article/details/14004331
2013-11-01:
Web UI page, to vie
Introduced:
For Agile Software Development, it is important to keep track of the progress of the project at all times, as you can keep abreast of the health of the team and deal with unexpected situations in a timely manner to ensure that our projects are delivered on time after each iteration.
Implementation mode:
The best tool to see the project progress is of course Burndown chart, we use Jira to do project management tools,
2014-03-20, part of the picture source onlineInstallation process reference: Confluence5.1 The latest version of the installation cracking Chinese http://www.eifr.com/article.php?id=2079 How to install the confluence on CentOS (as a supplement to some of the file user Permissions section, and run the script, this example is useless) Http://bin63.com/how-to-install-confluence-on-centos JIRA + confluence Installation on Linux Centos 6.2 (Simple Descri
corresponding input prompt, so I do not do more introduction, Figure 1 is a simple introduction to fill in the relevant information:
Figure 1 providing project-related information
After clicking Create, you will enter a Jira page (Sonatype use Jira to track each project's progress), and you will receive an e-mail message in the mailbox you are registering with, and the task is created and waiting to be p
Objective
The new memory model is presented in this JIRA, JIRA-10000, corresponding to the design document in this: Unified-memory-management.
Memory Manager
In the Spark 1.6 release, Memorymanager is selected by the
Spark.memory.uselegacymode=falseSpark.memory.uselegacymode=true (represents the previous version of 1.6 used)
Decision-making. If you use a model prior to 1.6, this will be managed using Static
Hadoop's Jira HDFS-7240 for details. After such a long period of development and intense name discussions will eventually be named HDDs (Hadoop distributed Data Store) See Jira HDFS-10419.
So how does ozone solve the existing problem of HDFs?
The main thrust of ozone is scaling HDFs (scaling HDFs). Scaling HDFs is the current problem with HDFs: Namenode metadata management bottleneck to deal with, on the o
0x55db5f7cf91f 0x55db5fe8e120 0x7f848d56e6ba 0x7f848d2a482d Key points: Failed to mlock: Cannot allocate memory andGot signal: 6 (Aborted).InvestigationThere are two issue on the Jira of MongoDB that are identical to this one:
SERVER-29086
SERVER-28997
Analysissuch as SERVER-28997
Saslscramsha1clientconversations has a scramsecrets which they ' ll pull out of the cache. Scramsecrets allocate secure storage in their defau
Apache Qpid Security Restriction Bypass Vulnerability (CVE-2015-0223)
Release date:Updated on:
Affected Systems:Apache Group Qpid Description:Bugtraq id: 72319CVE (CAN) ID: CVE-2015-0223
Apache Qpid (Open Source AMQP Messaging) is a cross-platform enterprise communication solution that implements the Advanced Message Queue Protocol.
Apache Qpid versions earlier than qpidd 0.31 have security vulnerabilities in the implementation of the access mechanism. Attackers can also access qpidd when th
Apache Axis incomplete repair SSL certificate verification Bypass Vulnerability (CVE-2014-3596)
Release date:Updated on:
Affected Systems:Apache Group AxisDescription:--------------------------------------------------------------------------------Bugtraq id: 69295CVE (CAN) ID: CVE-2014-3596
Apache Axis is a fully functional Web service implementation framework, while Axis2 is a restructured version of axis1.
Vulnerability CVE-2012-5784 repair is not complete, check whether the server host na
Two JTCDH4.2.0) OOM problems occurred in the previous phase, leading to an error in the ETL process. Because most of the cluster parameters that were just taken over were default, the CMS related to the JVM parameters of JT was modified, at the same time, the interval and cachesize of the retireJob are reduced to see if it works. after three days, I started to report an alarm. I can see that the Old gen has been rising and cannot be released. It is estimated that it is a memory leak. I will anal
slice. You can say that a process uses 1/3 CPU time slice or 1/5 time slice. For more information about CPU resource division and scheduling, see the following links:
Https://issues.apache.org/jira/browse/YARN-1089
Https://issues.apache.org/jira/browse/YARN-1024
Hadoop new features, improvements, optimizations, and Bug Analysis Series 5: YARN-3[Summary]Currently, YARN memory resource scheduling draws on th
Because the pre-compiled packages on the official website of Hadoop2 are all compiled in 32 bits, and problems may occur in 64-bit systems, you need to compile and run them on 64-bit systems.
Example: http://apache.osuosl.org/hadoop/common/hadoop-2.2.0/
Download hadoop-2.2.0-src.tar.gz
Decompress the package and run:
$ Mvn-version
$ Mvn clean
$ Mvn install-DskipTests
$ Mvn compile-DskipTests
$ Mvn package-DskipTests
$ Mvn package-Pdist-DskipTests-DtarHowever, the following problems occur
be returned gradually.
How do I allocate resources in a queue to its subqueues?
When a TaskTracker sends a heartbeat request to a new task, the scheduler selects the task according to the following policies:
1 )? Sort all sub-queues by ratio {used capacity}/{minimum-capaity;
2 )? Select a queue with the smallest ratio of {used capacity}/{minimum-capaity:
If a leaf queue has a pending task, select a task (cannot exceed maximum capacity );
Otherwise, select a task recursively from the sub-queue o
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