ERROR or above I n the package nomodule.log4j.logger.nomodule=fatallog4j.logger.com.opensymphony.xwork2= Debuglog4j.logger.org.apache.struts2=debugTo create a test Actiontest.java:1 Packagecn.clear.web.test;2 3 ImportCom.opensymphony.xwork2.ActionSupport;4 5 Public classActiontestextendsactionsupport{6 7 8 /**9 * @fieldName: SerialversionuidTen * @fieldType: Long One * @Description: TODO A */ - - Private Static Final LongSerialversionuid = 3248237427179914097L; the - P
This article is shared with the comrades who are still struggling with the configuration of Eclipse and MAVEN environment, let it be less detours, say no more, go straight aheadEnvironmental problems One is the configuration is not configured well, the second is the various parts may appear compatibility problems, resulting in errors, in summary, I chose a practical configuration method, as follows:1. Install Eclipse:eclipse-jee-luna 4.4.1 X86 (my 32-bit, 64-bit choice 64-bit version)2. Install
This blog is based on the following software:Centos 7.3 (1611)kafka_2.10-0.10.2.1.tgzzookeeper-3.4.10.tar.gzhbase-1.3.1-bin.tar.gzapache-storm-1.1.0.tar.gzhadoop-2.8.0.tar.gzjdk-8u131-linux-x64.tar.gzIntelliJ idea 2017.1.3 x64
The whole process of integrating spring IBatis is as follows:
All required *.jar files are introduced. Configure Web. Xml.
Configure Log4j.
Configure the C3P0 database connection pool. Configure spring and integrate with Ibatis. Build the database
cmdb.
Now, RegEx is fully tested for Version 2.2, 2.x, and subsequent migration solutions. The topic is a bit running, and now the scheme of trimming is to trim the alarm of some emails and text messages while I am developing the alarm platform Phase II. The scheme of trimming is within 3 minutes, if duplicate information is not sent, you can define the trim time for each information type on the platform.
Some serious and disaster-level alarms need to be contacted by noc. At this time, we can u
solutions. The topic is a bit running, and now the scheme of trimming is to trim the alarm of some emails and text messages while I am developing the alarm platform Phase II. The scheme of trimming is within 3 minutes, if duplicate information is not sent, you can define the trim time for each information type on the platform.
Some serious and disaster-level alarms need to be contacted by NOC. At this time, we can use some voice alarm API interfaces to solve such problems. Most of them use twil
Zookeeper Vulnerability Analysis
For those who do not know ZooKeeper, it is a well-known open-source project that supports highly Reliable Distributed Coordination. It is trusted by many security companies around the world, including PagerDuty. It provides highly available and linear services based on the leader's philosophy, and these services can be dynamically reselected by most arbitration to ensure service consistency.
The leadership election and
alarm notification sent frequency, and so on, Grafana can not meet, for this alarm rule we have implemented an alarm engine, To satisfy these more complex alarm rules.
NotificationGrafana Alarm notification is only triggered when the state transitions, that is, the alarm status will send an alarm notification, if the condition has been satisfied for a period of time before the recovery of the alarm conditions, Grafana will not always send notifications until the time of recovery to send a reco
Notes | Inherit Mixins and introductions
Many people say that AOP is an interceptor, pointcut expression, aspect and implementation (advices). Actually AOP
More than that, another important feature in JBoss AOP is the ability to transparently pass interfaces to Java classes. You
You can enforce an interface implemented by a class, and you can even attach another class (mixins) to implement this interface. Just like C + +
The multiple integrations insi
notify our team. In this example, we will send a notification to the ops team's chat room and send a text message to the engineer on duty. In "Say what's happening", we will name the monitor and add a short message with the notification. We recommend that you start the investigation first. We will @ the Slack used by the ops team and @ pagerduty will send a warning to the text message.NGINX metric notification
Save Integrated Monitoring. Click "Save
and Disadvantages of pushgateway
20. Explain the Exporter Code of Prometheus
21. grafana introduction graph of Prometheus
22. Details on grafana graphic settings of Prometheus
23. Prometheus's grafana alerting alarm-1
24. Alert alert for grafana of Prometheus-2
25. Prometheus's grafana alert-3
26. Prometheus enterprise practice CPU monitoring
27. Prometheus enterprise practice memory monitoring
28. Prometheus's business practice usage Estimation Function
29. Prometheus enterprise practice I/O/n
library uses pylibmc and libmemcached. Amazon also provides the caching service-elastic cache service. Instagram also has some attempts, but it is not cheap.
Task queue/release notification
The queue service uses gearman and the notification system uses pyapns.
Monitoring
The number of server instances mentioned above adds up to more than 100, and effective monitoring is quite necessary. Using Munin as the main monitoring tool, you have also written many custom plug-ins, and pingdom ser
there is no time to deal with the alarm. The Manpower department does not give the force, the delay cannot find the person.Fortunately, there are some alarm aggregation services abroad, pagerduty, Bigpanda and so on.The main function of this kind of tool is to realize the alarm of all monitoring system in one platform, so as to realize the service of alarming aggregation, so that OPS personnel can concentrate on it event, avoid multi-platform switch
The module is used to manage object operations, which is also an entry for Saltstack to be managed via push, such as executing commands, viewing package installations, viewing service runs, and so on, all via the Saltstack module.After installing master and Minion, many module will be installed and the supported module list can be viewed by the following commandSalt ' minion1 ' sys.list_modulesMinion1:-ACL-Aliases-Alternatives-Apache-Archive-Artifactory-At-Blockdev-Bridge-Btrfs-Buildout-Cloud-cm
graphics tools
Cabot-monitoring and alerting, similar to Pagerduty
Extended collection of Check_mk-nagios
Dash-a low-overhead web dashboard monitor for gnu/linux machines.
Icinga-nagios Branch
Librenms-observium Branch
Monit-Small open source tools for managing and monitoring Unix systems
Munin-Network Resource monitoring tool
Naemon-NAGIOS4 Core-based network monitoring tool with performance enhancements and new features
Nagios-Com
Directory Server-Apache Software Foundation project written in Java
Fusion Directory-improved service and corporate directory management based on OPENLDAP
Opendj–opends Branch
OpenDS-Another directory server written in Java
OpenLDAP-Developed by the OpenLDAP project
Log ManagementLog management tools: Collect, Parse, visualize
elasticsearch– a Lucene-based document store, primarily for log indexing, storage, and analysis.
fluentd– Log Collection and issuance
Original: Use Opserver to monitor your ASP (one, Opserver monitoring introduction and platform building)ObjectiveThere have been 2 articles on how to monitor the ASP. NET Core project.Today we mainly talk about how to monitor our ASP.First, let's introduce what is Opserver, which is the stack Overflow (Stack Overflow is a program-related IT technology quiz site. Users can submit questions, browse questions, index related content, and use simple HTML when creating a homepage. On the questions pag
Tags: PMM alert alarmHere is how to increase the alarm function, saying that no alarm function monitoring is not good monitoring!PMM monitoring type mainly has, actually should say is Grafana
e-mail #最常用的, but the disadvantage is that the service provider's SMTP server, often have a delay, be treated as spamThe Official Configuration tutorial:Https://www.percona.com/blog/2017/01/23/mysql-and-mongodb-alerting-with-pmm-and-grafana/?utm_source=tuicool utm_medium=referral
Webhook #不考虑了,
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