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Differential backup: Back up data based on full backup. Because the tar command cannot implement differential backup, this article explains how to use the dump and restore commands. Of course, the dump and restore commands can also implement full backup and Incremental backup. 1. Create Backup directory partition mounting [root@serv01 data]# mkdir /backup[root@serv01 data]# fdisk /dev/sdb[root@serv01 data]

Tags: Java running term runtime dump bin sudo tuning traceDump is a dump of information on the memory of the program runtime, allowing us to see how the program is running. Dump is a very useful tool for tuning and troubleshooting.Heap DumpThe Java runtime objects are allocated to heap memory, and heap dump is a

Display 227 Entering Passive Mode (xxx,xxx,,xxx,xxx,x) when logged in to FTPBecause FTP has two modes of operation, port mode and PASV mode, Chinese meaning is active and passive, details are as follows:Active FTP:Command connection: client >1024 port → Server 21 portData connection: Client >1024 port ← Server 20 PortP

Q: The "XXX" type cannot be implicitly converted to "XXX []" Or Cannot implicitly convert type 'xxx' to 'xxx []' This problem occurs only when release is debugged. Because there is no specific error location information, it has not been solved for six months. I have no intention to find a solution today. I 'd like

I am so happy today that I have solved a problem that has been suffering me for a week. I am so excited that I am crying. For this problem, my mouth is broken and my hair is caught. Although the solution shows the greatness of "Baidu", I am still very happy. Here I will show my results The problem is that downloading the zip package under 2 GB does not fail every time, but it will fail as long as I leave the current page and enter the current page again (enter requestfail ), if you just leave an

[Original] tinker dex file format dump tool tinker-dex-dump, dextinker-dex-dumpPreface Tinker is an open-source hot update project launched. Compared with other hot update solutions, Tinker has the advantages of small patch packages, support classes, so, and resource file replacement. In the class replacement solution, the DexDiff algorithm is independently developed to make the patch package smaller. Altho

When you test on a real machine, the following information appears, and the app hangs. Restore the connection to "" XXX "for IPod" and run "xxx" again, or if "xxx" is still running, you can attach to it by selecti ng Debug > Attach to Process > XXX.This is because the application suddenly consumes a lot of memory, and then allocates the scheduling memory, an erro

* ** No rules can be used to create a solution for the target "XXX" problem required by "XXX", or a xxx Solution In the topic of the last semester of the 4th season, 1. uncompress uboot_tq2440.tar.gz in Linux 2, tar xvzf uboot_tq2440.tar.gz 3. Enter uboot_tq2440/ 4. make TQ2440_config (configure the TQ2440 Development Board) 5. make ARCH = arm CROSS_COMPILE

There are a couple of things that I'm going to tell you about my situation.1.word Improper setting causesLook at the picture:And then you can open it.2.word format problems, such as the original doc, was manually changed to docx~~~Workaround: Change back3.word version incompatible, such as 2003 open 2007 or laterWorkaround: Search the Internet for compatibility packs4. If you have a friend who does not want trouble: Open with WPS, Save as Word, and then open with Office.Friendship reminds: WPs t

Tag: Install Lib Conflicts file installationThe following error is prompted when you perform the installation of RPM-IVH lib64stdc++6-4.6.1-2-mdv2011.0.x86_64.rpm:Warning:lib64stdc++6-4.6. 1-2-mdv2011. 0. X86_64.rpm:Header V3 dsa/sha1 Signature, key ID70771Ff3:nokeypreparing ...########################################### [100%] file/usr/lib64/libstdc++.so. 6 fromInstall ofLib64stdc++6-4.6. 1-2.x86_64 conflicts with file fromPackage libstdc++-4.4. 7-One by one .El6.x86_64file/usr/lib64/libst

When the test is on the real machine, it appears for example the following information, and the application hangs.Restore the connection to "" XXX "for IPod" and run "xxx" again, or if "xxx" is still running, you can attach to it by selecti ng Debug > Attach to Process > XXX.This is because the application suddenly consumes a lot of memory, and then allocates the

File xxx from install of xxx conflicts with file from xxx, installconflicts When you install rpm-ivh lib64stdc ++ 6-4.6.1-2-mdv2011.0.x86_64.rpm, the following error is prompted: Warning: lib64stdc ++ 6-4.6.1-2-mdv2011.0.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 70771ff3: NOKEYPreparing... ######################################## ### [2, 100%] file/usr/

Reprint: http://blog.csdn.net/kevin_luan/article/details/8447896http://liulinxia02.blog.163.com/blog/static/26868772009111861834942/http://zhumeng8337797.blog.163.com/blog/static/100768914201242410583187/Where Jmap is the tool that comes with JavaView entire JVM memory statusJMAP-HEAP [PID]It is important to note that in the case of CMS GC, the execution of jmap-heap may cause the Java process to hangViewing object detail usage in the JVM heapJmap-histo [PID]Exporting memory information througho

Http://www.cnblogs.com/xzpp/archive/2011/10/10/2206619.html 1. Core dump and heap dump files Core DumpStores CPU and JVM-related information. It mainly stores the running position of each Java application thread at a certain time point, that is, the method of the class to which the execution is performed and the line. Javacore is a text file. Once opened, the execution stack of each thread is displayed in s

When doing some comparative kernel research on Oracle, the dump command is used to dump the information in the database into the trace file. This article simply describes using the dump command to dump the information in a data block into a trace file.Lab Environment: rhel7.2+11.2.0.4Grammar:Alter system

Write a daemon (7) on Windows to capture exceptions and generate dump, daemon dumpWrite a Windows daemon (7) to capture exceptions and generate dump No one can ensure that their Code does not contain any bugs. Once a bug occurs, it is best to crash, so that it can be quickly discovered. If it is not a crash, but the service processing is wrong, it will be troublesome and it may be discovered after a long ti

Core dump and/proc debugging-orisun-blog Core dump and/proc debugging Core Dump Using core dump is post-event debugging (postmortem Debug ). First, set the core file size to 1024. Orisun @ zcypc :~ $ Ulimit-C 0 Orisun @ zcypc :~ $ Ulimit-C 1024 Note that this modification is only valid for the c

There are two basic ways to create a copy of a file.The first relatively simple method is called a periodic dump (or a full-volume dump, a periodic fallback). This approach is to transfer the contents of all the files in the memory to a certain medium, usually a tape or a disk, at a fixed time period.Advantages:The file system can re-assemble the files, placing all the blocks of the user scattered throughou

1.1UseOradebug- -Start taskOradebug Setmypid-- Set the name of the dump file to indicateAlter session Set Tracefile_identifier=undo-- view dump fileSql> Oradebug Tracefile_name;C:\opt\oracle\product\10.2.0\admin\rundb\udump\rundb_ora_6660_pra1.trc-- Set permissionsOradebug Unlimit-- View a list of possible dumps:Sql> Oradebug DumplistEVENTStrace_buffer_onTrace_buffer_off--oradebug

PrefaceTinker is the launch of the hot Update Open source project, compared with other hot update scenarios with small patches, support classes, so, the replacement of resource files and other advantages. In the scheme of class substitution, the Dexdiff algorithm is developed independently, which makes the patch package become smaller. The resulting product of the DEXDIFF algorithm, while also using. dex as the format suffix, is two different formats than the Dex file in the actual virtual machi