What do mysql backup and restore ?

  1. pasterrichard05 profile image61
    pasterrichard05posted 3 years ago

    What do mysql backup and restore ?

    I am newbie to mysql and want to clarify below on mysql backup and restore

    What are the things needed to backup mysql and restore it like database name, username, password etc.

    1)I have a database which need to be restored on different server so I used mysql dump command to backup the database by using username root and now during restoration on different server what is the username and password I need to use.

    2)If I have created a new empty database on new server so can I restore old database on this new database.

  2. pauldeeds profile imageSTAFF
    pauldeedsposted 3 years ago

    You will need to recreate the grants on the new server.  They typically aren't part of the mysqldump export.  There are tools, such as pt-show-grants that can help with that, but for simple configuration it should be pretty easy to just run the appropriate GRANT commands.

    A grant for the root user was probably part of the initial mysql server setup process.  If it wasn't you'll need to do that before you can do anything else.  You can import the dump using the username/password of the root user.  But, for security reasons you should use less privileged users for typical connections.

    There are some decent answers here as well:

    http://serverfault.com/questions/8860/h … new-server

  3. drynalexandr profile image61
    drynalexandrposted 3 years ago

    You have many options!!!
    If you don't get to connect on database, you will have to restore it.
    The basic restore command for restoring a full database from a disk backup image is
    db2 RESTORE DATABASE dbname FROM directory TAKEN AT timestamp
    To restore from TSM use:
    db2 RESTORE DATABASE dbname USE TSM TAKEN AT timestamp
    The timestamp represents the time the database
    was backed up (it's the timestamp you see when the backup completes and
    it also exists in the recovery history file and for backups to disk you
    can see it in the filename or path)
    Assuming the backup was done online with log archiving enabled, there is one more thing to do. When you perform an online backup, the restore must apply any transactions that were going on when the backup occurred in order to make sure the database is consistent. So now you must roll forward the database or the tablespaces to a point of consistency. For database level restores, you can roll forward to any point between the end of the backup and the current time (i.e. end of logs).
    To check if a backup image is corrupted, you can use the db2ckbkp command
    db2ckbkp -h
    To check the backups taken on your server you can perform the following command
    db2 list history backup all for
    Output:
    Op Obj Timestamp+Sequence Type Dev Earliest Log Current Log Backup ID
    -- --- ------------------ ---- --- ------------ ------------ --------------

    B D 20080328013138001 N D S0000002.LOG S0000002.LOG

    Contains 4 tablespace(s):
    00001 SYSCATSPACE
    00002 USERSPACE1
    00003 SYSTOOLSPACE

    00004 DMS_TS

    Comment: DB2 BACKUP SAMPLE ONLINE
    Start Time: 20080328013138
    End Time: 20080328013213

    Status: A

    EID: 8 Location: c:\SAMPLE.0\DB2\NODE0000\CATN0000\20080328
    The Start Time: 20080328013138 is the backup image timestamp.
    To roll the database forward to the end of the logs and open the database for access
    db2 ROLLFORWARD DATABASE dbname TO END OF LOGS AND STOP
    To rollforward to a given point in time you can say
    db2 ROLLFORWARD DATABASE dbname TO isotime USING LOCAL TIME AND STOP
    If you able to connect on database, but some tablespaces are offline or are in the not normal state, you need to check and fix the problem.
    Soon, a document will be post here with more details step by step to teach what you have to do when a database get crashed
    http://bytes.com/topic/mysql/answers/96 … ost3793382

 
working

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

Show Details
Necessary
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
Features
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Marketing
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Statistics
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)