-A command to monitor logical volumes to see the size of the data and metadata. Alternatively, you can use the VGS command to monitor the available space for the volume group.When the threshold is reached, the log displays the automatic expansion information for the thin pool, which can be viewed using the following command:$ journalctl -fu dm-event.serviceWhen you confirm that your configuration file is correct, you can delete the previous backup dir
Build a docker environment for the Distributed log platform from the beginning and build a docker
In the previous article (spring mvc + ELK build a log platform from the beginning), we will share with you how to build a distributed log Platform Based on spring mvc + redis +
Docker Storage Driver Detailed introduction
Recently do project, during the Docker storage driver will not, so find information on the Internet, and resolved, here on the record.
Objective
Understand how Docker is stored
Dock
When we set up the Docker cluster, we will solve the problem of how to collect the log Elk provides a complete solution this article mainly introduces the use of Docker to build Elk collect Docker cluster log
Elk Introduction
Elk is made up of three open source tools , El
Brief Introduction:
1, Docker 1.12.6/v17.03 documents in the CENTOS7 system installation, clearly stated that for production, must use the Devicemapper-driven DIRECT-LVM mode, we need to prepare the block equipment in advance to provide better stability and performance. The Devicemapper-driven LOOP-LVM mode is used by default because the installation is simple and applies only to test environments. As can be seen from the
Label:SQL2000 installation failed, [ODBC Driver Manager] No data source found, see log file for more information(2010-09-13 17:38:18) reproduced Recently installed the database SQL server2000 when installed to the end of the time, to jump out of the "SQL2000 installation failed, [ODBC driver Manager] did not find the data source, more information please view the
Environment: CENTOS7
Command: Systemctl start Docker
Systemctl Status Docker-l
Error: Error Starting daemon:selinux is isn't supported with the Overlay2 graph driver on this kernel. Either boot into a newer kernel or disable SELinux in Docker (--selinux-enabled=false)
Solution:
This means that the SELinux in t
I recently added support for Docker container logs in the Log collection feature. This article simply talks about strategy selection and how to handle it.
About the container log for DockerI'm not going to say much about Docker, it's going to be hot for two years. Recently I was also deploying some components of the
development, testing, and operational dimensions. Good at using Docker to build the entire DevOps Automation platform. Love the research Dockerfile, and the technology around Docker, CoreOS in-depth study.Getting started with DockerDocker introduction to Docker's advantages and what can be solved by Docker component compositionDockerfileDockerfile Concept docker
If the time can be reversed, the real world every step can be broken down to the smallest, recorded, is the log, all things the same day.In the face of history, examine the log, you can choose to forget, you can choose to remember, experienced, can choose to cherish, also can let it dust-laden.What about Docker containers? The
0, Preface
This article is mainly referred to dockerinfo this article Elk log system, which Docker configuration file is mainly provided by the blog, I do just on the basis of this article, deleted part of this article does not need, while noting the construction process of some problems.
About Elk, this article does not do too much introduction, detailed can view the official website, here first posted our
1. Overview
In a distributed cluster environment, the log content of a single node tends to be stored on its own node, which has many problems. We need a unified log processing center to collect and centrally store logs, and to view and analyze them. The Twelve-factor app has recommendations for log processing.
The corresponding processing technology is now very
) Download and install Sqlplus: http://www.oracle.com/technetwork/database/features/instant-client/sqlplus-cloud-3080557.htmlPlace the extracted files of the downloaded Sqlplus compressed package into the same directory as the Oracle Instantclient: 3) Open Nvicat, "Tools"-"Options"-"OCI", configure the OCI library to C:\instantclient_12_2\oci.dll,sql*plus set to C:\instantclient_12_2\ Sqlplus.exe3. Establish a connection1) Connection Name any2) connection type: Basic3) host name or Ip:localhos
1 Background and questions
With the advent of cloud computing, PAAs platforms, and the application of technologies such as virtualization and Docker, more and more services are deployed in the cloud. Usually, we need to get the log, for monitoring, analysis, forecasting, statistics and other work, but the cloud of services is not a physical fixed resources, log
1 Background and questions
With the advent of cloud computing, PAAs platforms, virtualization, containerized technologies such as Docker, more and more services are deployed in the cloud. Usually, we need to get logs for monitoring, analysis, prediction, statistics and other work, but the cloud service is not a physical fixed resources, log access to increase the difficulty, the past can be SSH landing or F
The basic skeleton of the Logrus and log principle (i) in Docker that was analyzed to the container's printout and log function is done in the Entry.log () function, and this Entry.log () also contains two parts: 1) via log Driver the hook function to record the
1. The Docker container and the system time are inconsistent because the Docker container has a native time zone of 0 time zones, while the domestic system is in the East eight zone.2. There is also a eight-hour time difference between the log time played by the Java application running in the container and the standard time of the container obtained through the
java log Configuration
Syslog-ng process inside Docker
[Root@d390c7582ad7 syslog-ng]# Cat syslog-ng.conf @version: 3.2 # syslog-ng configuration file. # # should behave pretty much like the original syslog on RedHat.
But # it could is configured a lot smarter.
# # See Syslog-ng (8) and syslog-ng.conf (5) For more information.
# options {flush_lines (0);
Time_reopen (10);
Log_fifo_size (
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