Prometheus does not support the alarm function, mainly through the plug-in alertmanager to achieve alarm. Alertmanager is used to receive the alarm information sent by Prometheus, process the alarm and send it to the specified user or group.
The process of Prometheus triggering an alarm is as follows:
Posted on Sun, 28 Jun 2020 22:35:57 -0400 by flamtech
When we use Redis as cache, one of the problems we need to consider is cache penetration. There are many types of cache penetration, and different types have different solutions. As one of the solutions, the bloon filter is used. The bloom filter is mainly used to determine whether an element is contai ...
Posted on Sat, 27 Jun 2020 02:42:46 -0400 by methodlessman
Merging or splitting by specified characters is a common scenario. MySQL is easier to write in merged characters, but splitting by specified characters is more cumbersome (that is, writing more characters).This article will show examples of merging and splitting by specified characters.
Group_can be used directly for merging sp ...
Posted on Wed, 24 Jun 2020 22:09:54 -0400 by zggtf211
1, Environment introduction
The data replication between MySQL is based on binary log files. Once the binary log is enabled in MySQL database, all operations in its database will be recorded in the binary log in the form of events as Master. Other databases as Slave will keep communication with the Ma ...
Posted on Wed, 24 Jun 2020 02:45:40 -0400 by Wetzut
Write before: Blogger is a rebel who pursues freedom after 80's standard of devoting himself to education and training. His nickname comes from Su Shi's "the height is too cold" in "the head of the tune of water". He always reminds himself to stand the loneliness and suffer the loneliness. On the road of technology, he is ...
Posted on Tue, 23 Jun 2020 03:37:21 -0400 by Fribbles
1, elasticsearch practice
Open source distributed search analysis engine and love ability are based on apache lucene, a full-text search engine library
elasticsearch is not only lucene, but also a full-text search engine:
A distributed file storage, each field can be indexed and searched
A distributed r ...
Posted on Sun, 21 Jun 2020 06:22:37 -0400 by egpis
Simple Distributed Cluster Cluster Setup for HDFS
This paper describes a simple HDFS fully distributed cluster setup operation, which is a simple distributed cluster because it is not a highly available HDFS.The next article will describe how to build a distributed cluster of HDFS for HA.
Posted on Sat, 20 Jun 2020 21:56:51 -0400 by abhi_10_20
1 create nfs
Deploy the nfs service on the kubernetes master node and execute on the master node
#master node install nfs
yum -y install nfs-utils
#Create nfs directory
mkdir -p /nfs/data/
chmod -R 777 /nfs/data
#Edit the export file, which is the default configuration file of nfs
/nfs/data *(rw,no_root_sq ...
docker installation elasticsearch
(1) View local images Image
(2) View containers that are running on this machine
(3) pull image from dockerhub
docker pull image name
Installation and configuration
Docker search esearch all elasticsearch versio ...
Posted on Mon, 15 Jun 2020 03:04:48 -0400 by php_blob
mfs explanation and deployment
1, MFS details
Composition of MFS file system
MFS read data processing:
MFS write data processing:
The process of deleting files in MFS
MFS process of modifying file content
MFS renaming process
The process of MFS traversing files
Posted on Sun, 14 Jun 2020 02:16:37 -0400 by xkaix