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Mysql-bin.000001 files are generated and processing methods mysql-bin.000001, mysql-bin.000002 and other files are database operation logs, such as UPDATE a table, Mysql-bin.000001 files are generated and processing methods mysql-bin.000001, mysql-bin.000002 and other files are database operation logs, such as UPDATE a

InMySQL databaseMedium,Mysql-bin.000001,Mysql-bin.000002Such files are database operation logs, such as updating a table or deleting some data. Even if the statement does not match the data, this command is stored in the log file, the execution time of each statement is also recorded. There are two main purposes to do this: 1. Data Recovery If there is a problem with your database, and you have had a backup before, you can check the log file to find o

Solve the problem of using ultra-large space bitsCN.com In recent months, servers have always been on the machine frequently, leading to unguaranteed availability of the bill lid. But it is also strange, when the server can be normally connected, Nginx also seems to be normal, but the PHP-FPM lost response. Later, I accidentally found out:Rootfs 7.7G 7.7G 0 100%/ The root directory is full! It is considered that there are too many logs and the logs are cleared. However, logs are full every week.

The statement "#" is called a macro definition or precompiled directiveSingle-line comment/**/Multiline commentfunction return value: Void means that no data is returned, and return statements are required if the data is returned-------------Data Type-------------The data type determines how much memory is used to store the data.4294967295 is the maximum number of positive integers allowed for 32-bit CPU registersOctal starts with 0, each value range is 0-7, the hexadecimal prefix is 0X or 0x, t

Shahelper.java PackageCom.util;/** * @authorWangxiangyu * @date: October 16, 2017 9:00:47 * class Description: Sha Signature Algorithm*/ Public classShahelper {Private Final StaticString[] hexdigits = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"}; /*** Convert byte array to 16 binary string * *@paramB-byte array *@return16 binary strings*/ Public StaticString bytearraytohexstring (byte[] b) {StringBuffer RESULTS

SHA and sha of message digest algorithm for Information Encryption SHA is an implementation method of the message digest algorithm. The implementation of MD2 \ 4 \ 5 has been summarized earlier. Next, we will summarize the implementation of SHA. Jdk Implementation of SHA: Pr

In recent months, servers have always been on the machine frequently, leading to unguaranteed availability of the Bill lid. But it is also strange, when the server can be normally connected, Nginx also seems to be normal, but the PHP-FPM lost response. Later, I accidentally found out:Rootfs 7.7G 7.7G 0 100%/ The root directory is full! It is considered that there are too many logs and the logs are cleared. However, logs are full every week. It makes Bill's lid restless. Later, the/var was partit

Tags: log effect organization occupancy problem IMA blog MySQL log serviceDescription: mysql-bin.000001, mysql-bin.000002 files, such as the database operation log, such as update a table, or delete some data, even if the statement does not have matching data, the command will be stored in the log file, also includes the time of execution of each statement, also recorded in. This is primarily for operational review and multi-database synchronization.

After installing MySQL with ports, after a period of time found that the/var space is insufficient, check, you will find that mysql-bin.000001, mysql-bin.000002 and other documents occupy space, then what are these files? This is the operation log of the database, such as update a table, or delete some data, even if the statement does not have matching data, this command will be stored in the log file, also includes the time of each statement executio

Today found/usr/local/mysql/var under a lot of mysql-bin.000001, mysql-bin.000002 files, Google's. This is the operation log of the database, such as update a table, or delete some data, even if the statement does not have matching data, this command will be stored in the log file, also includes the time of each statement execution, also recorded in. This has the following two purposes:1: Data recoveryIf your database is out of order and you have a pr

After the authority confirmed that the SHA1 encryption algorithm is more and more high, SHA fingerprint fraud cost is getting lower, then Microsoft, Google and other IT giants have released the SHA1 encryption algorithm declaration, the third-party certification body from January 1, 2016 onwards, will fully stop the issuance of SHA1 algorithm digital certificate. All this suggests that the SHA1 algorithm, which has been born since 1995, will be replac

This article is reproduced from: Portal, theft code shameful, we are the code of the porter, only handling, not stolen code Package cc.restyle.util; Import Java.security.MessageDigest; Import java.security.NoSuchAlgorithmException; /** * SHA-512 Encryption * */public class SHA512 {/** incoming text content, return SHA-256 String */public static string encry256 (final Strin G StrText) {return

Micro framework provides the ability to access the Internet. In terms of data security, micro framework only supports RSA and xtea algorithms. Due to the communication needs of heterogeneous systems, I have compiled an Encryption Class Library, which currently only implements SHA-1, SHA-256 algorithm, and will be improved later. See http://www.microframework.cn/post/2009/03/16/

#import #import "NSSTRING+HASH.H" #import Object-c MD5 and SHA and Hmac-sha

After installing MySQL with ports, after a period of time found that the/var space is insufficient, check, you will find that mysql-bin.000001, mysql-bin.000002 and other documents occupy space, then what are these files? This is the operation log of the database, such as update a table, or delete some data, even if the statement does not have matching data, this command will be stored in the log file, also includes the time of each statement executio

Analysis of malicious software detection mechanism bypass by SHA-1 and SHA-2 combination Symantec recently posted on its blog that it is aware of a disturbing attack trend in malware. After stealing a normal SHA-2 certificate, malware can survive more easily.SHA-1 is insecure. This change is part of the evolution of malware. After all,

After the authority confirmed that the SHA1 encryption algorithm is more and more high, SHA fingerprint fraud cost is getting lower, then Microsoft, Google and other IT giants have released the SHA1 encryption algorithm declaration, the third-party certification body from January 1, 2016 onwards, will fully stop the issuance of SHA1 algorithm digital certificate. All this suggests that the SHA1 algorithm, which has been born since 1995, will be replac

Objective:For the SHA Secure Hash algorithm, not used before, just stay in the heard of the stage, today in the picture cache frame Glide source found that its cache key is not MD5 encryption algorithm, but SHA-256 encryption algorithm, this just hook up my curiosity, so while the night nothing, To learn a bit.Several other encryption methods: RSA encryption of Android data encryption AES encry

The Java encryption and decryption technology series SHA Order Background Body Comparison of SHA-1 and MD5 Code implementation Conclusion OrderThe basic one-way encryption algorithm--MD5 is introduced in the previous article, and the principle of its realization is also roughly stated. This article continues the one-way encryption mentioned earlier, mainly on

SHA is an implementation of the Message digest algorithm, which has already summed up the implementation of MD2\4\5, and then summarizes SHA's implementation for you.The JDK implementation of SHA:Private Static void sha_jdk () { try { = messagedigest.getinstance ("SHA"); We can get different message digest key digest.update (Src.getbytes ()) through