uptime tracker

Looking back at fastdfsupdates, we can see fastdfs-nginx-module_v1.01.tar.gz nginx module. So we tested it on a test machine today. We are considering replacing lustre with a waste of resources! Environment: storage1：192.168.6.100storage2：192.168.6.101tracker：192.168.6.102 1. Download and install FastDFS on each machine Nginx $> wget http://fastdfs.googlecode.com/files/FastDFS_v2.04.tar.gz# decompress nginx $> tar zxvf fastdfs_v2.04.tar.gzng133 $> cd FastDFS # Because I added the fastdfs module

ones:Available_tracers:this shows what tracers is compiled to trace the system.Current_tracer:displays What tracer is currently enabled. Can is changed by echoing a new tracer into it.Tracing_enabled:lets you enable or disable the current tracing.Trace:actual trace output.Set_ftrace_pid:sets the PID of the process for which trace needs to be performed.To find out the available tracers, just cat the Available_tracers file. Tracers in the space-separated output Include:nop (not a tracer, which is

: This article describes how to install and use a FastDFS + Nginx lightweight distributed file system. For more information about PHP tutorials, see. 1 Introduction FastDFS is an open-source lightweight distributed file system that manages files, including file storage, file synchronization, and file access (file upload and download, it solves the problems of large-capacity storage and load balancing. It is especially suitable for online services with files as the carrier, such as photo album w

much each service contributes to the total delay. With distributed tracking, we have better visibility of the situation. [] (https://raw.githubusercontent.com/studygolang/gctt-images/master/debugging-latency/2.png) * See the delay details through the distributed tracking you collect. * In this case, in order to serve/messages, we have written three internal Rpc:auth. AccEsstoken, Cache. Lookup and Spanner. Query. We can see how much each RPC contributes to the delay. This time, we see is **auth

my favorite solution is to use Supervisord to check the running process and restart the process in the event of a crash. To start Gpu_mon, you first need to set up Supervisord. If it is not installed, you can put the configuration file into the/etc/supervisor/conf.d/gpu_mon.conf. Here's the configuration I used: [Program:gpu_mon] Command=/usr/bin/python3 After the installation is complete, you will need to reboot the Supervisord and check that Gpu_mon is started by running the following comma

.21.vi/vim Command line Text editor"Four" file compression and Decompression commands (4)1.tar Packaging compression2.unzip unzip the file.3.gzipgzip compression tool.4.zip Compression Tool"Five" Information display command (11)1.uname commands for displaying operating system-related information2.hostname displays or sets the host name of the current system3.DMESG Display boot information for diagnosing system failures4.uptime Display system run time

: Insufficient spaceQ:EBUG-FILE:STORAGE_DISK_RECOVERY.C, line:699, disk recovery:begin recovery data path:/home/nginx/fastdfs ...A: This is a data migration problem, which requires the same number of Sub_dir that were previously configured.Q: When you start storage server, you are always in a zombie state.Starting storage Server,storage will connect to tracker server and will retry if not connected. Until the connection is successful, the startup is t

it is a virtual machine environment, it is recommended to log in directly to root, because many operations under root can be done directly under the interface, for those who are not familiar with Linux easy to operate, of course, the formal environment, but also is to use the terminal to operate under the ordinary user. 1. Copy the fastdfs_v5.05.tar.gz, Libfastcommon.master.zip, nginx-1.8.0.tar.gz to the root folder and unzip 2. Copy the pcre-8.34.tar.gz, zlib-1.2.8.tar.gz, fastdfs-nginx-module

to strictly limit the user's BT download traffic or completely prohibit BT download. In general, there are seven most direct methods available. Restrict viewing of Bt websitesThere are many BT websites, but considering the characteristics of Bt downloads, the more people you download, the faster the speed. The more seed, the faster the speed. There are only a large number of people who download torrent files from popular BT websites. Generally, there are fewer people on Bt websites and fewer

Install FastDFS on centos Download link to install the desired file: http://download.csdn.net/detail/zhangbest2009/9795602 ========================================================== ============================================== Step 1. Install the dependency package libevent[Root @ zhangserver soft] # rpm-aq | grep libevent | xargs rpm-e -- nodeps [Root @ zhangserver soft] # tar zxvf libevent-2.0.15-stable.tar.gz [Root @ zhangserver soft] # cd libevent-2.0.15-stable [Root @ zhangserver soft] #.

it is absolutely necessary to strictly limit the user's BT download traffic or completely prohibit BT download. In general, there are seven of the most direct ways available. 　　 restrict browsing to BT website BT site A lot, but given the characteristics of BT Download: The number of downloads, the faster the speed; The more seed, the faster. Only the more popular bt website torrent file Downloads More people, the general BT site to the less, the number of downloads is also small, unless he

management is certainly not beyond it. However, as we have mentioned, the particularity of the open source software development model also puts forward new and stricter process requirements for its bug tracking and management process. In this case, it is necessary to have a more correct understanding of the defect tracking system (bug Tracker) first. Defects include product errors, requirements and design changes, new features or extensions (Feature,

1.the 3 modes that the Hadoop cluster can run. Single-machine (local) mode pseudo-distributed mode fully distributed mode 2. note points in the stand-alone (local) mode. There is no daemon in stand-alone mode (standalone), and everything runs on a JVM. There is also no DFS here, using the local file system. Stand-alone mode is suitable for running mapreduce programs during development, which is also the least used mode. 3. note points in pseudo-distribution mode. Pseudo-distributed (Pseudo) is

file, which means we need to modify bothConfiguration files:Command: vim/etc/init.d/fdfs_storagedTo make a global substitution command:%s+/usr/local/bin+/usr/binCommand: Vim/etc/init.d/fdfs_trackerdTo make a global substitution command:%s+/usr/local/bin+/usr/binFour. Configuring the Tracker1 Enter the cd/etc/fdfs/directory configuration tracker file and put the Tracker.conf.sample fileMake a copy of cope: Go to modify the tracker.conf file2 Modify tr

a text file that contains the tracker information and file information. Tracker information is mainly the address of the tracker server required for BT download and the settings for the tracker server. The file information is generated based on the calculation of the target file, the calculation result is encoded acco

://sourceforge.net/2. decompress and install the configurationTar-zxvf libevent-2.0.21-stable.tar.gzCd libevent-2.0.21-stableMkdir-p/usr/local/libevnet./Configure -- prefix =/usr/local/libeventMake make install# Create a soft link to the/lib library for libevent. The 64-bit system corresponds to/lib64.Ln-s/usr/local/libevent/lib/libevent-2.0.so.5/usr/lib/libevent-2.0.so.5 Ln-s/usr/local/libevent/lib/libevent-2.0.so.5/usr/lib64/libevent-2.0.so.5At this point, the libevent installation is complet

Hadoop Copvin-45 common questions and Answers1.What are the 3 modes that a Hadoop cluster can run? Stand-alone (local) mode Pseudo-distributed mode Fully distributed mode 2. note points in stand-alone (local) mode?There is no daemon in stand-alone mode (standalone), and everything runs on a JVM. There is also no DFS here, using the local file system. Stand-alone mode is suitable for running mapreduce programs during development, which is also the least used mode.3. What are

];Getpattern (Patch,dt.patch[i],mean,stdev);(2) Calculate the correlation similarity and conservative similarity of the pattern of the image to the online model m:Classifier. Nnconf (Dt.patch[i],dt.isin[i],dt.conf1[i],dt.conf2[i]);(3) The correlation similarity is higher than the threshold value, it is considered to contain the foreground target:if (dt.conf1[i]>nn_th) Dbb.push_back (Grid[idx]);So far, the detector detection is complete, all through the three detection Module scanning window exis

FastDFS installation configuration Step 1: Install FastDFS 1. decompress FastDFS_v4.07.tar.gz ==> FastDFS 2. cd FastDFS ==> vim make. sh modify the following content: TARGET_PREFIX =/usr/local/fdfs TARGET_CONF_PATH =/usr/local/fdfs/conf mkdir-p/usr/local/fdfs /conf modify if ["$ uname" = "Linux"]; then if ["$ WITH_LINUX_SERVICE" = "1"]; then if [! -D $ TARGET_CONF_PATH]; then mkdir-p $ TARGET_CONF_PATH cp-f conf/tracker. conf $ TARGET_CONF_PATH cp-f c

FastDFS installation configuration Step 1: install fastdfs1.decompress fastdfs_v4.07.tar.gz gt; FastDFS2.cdFastDFS gt; vimmake. sh modify the following content: TARGET_PREFIX/usr/local/fdfsTARGET_CONF_PATH/usr/local/fdfs/conf FastDFS installation configuration Step 1: install FastDFS 1. decompress FastDFS_v4.07.tar.gz ==> FastDFS 2. cd FastDFS ==> vim make. sh modify the following content: TARGET_PREFIX =/usr/local/fdfs TARGET_CONF_PATH =/usr/local/fdfs/conf mkdir-p/usr/local/fdfs /conf modify