the MySQL service on local computer started and then stopped

Question

the MySQL service on local computer started and then stopped  Some services stop automatically if they are not in use by other services or programs   Can anyone resolve this issue  Thanks

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In my case  I tried to open a DOS prompt and go to the MySQL bin  directory and issue the below command   mysqld --defaults-file  C  Program Files MySQL MySQL Server 5 0 my ini  --standalone --console   And it shows me I was missing the  C  Program Files MySQL MySQL Server 5 0 Uploads  folder  I built one and problem solved

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If you have changed data directory  the path to the database root in my ini  to an external hard drive  make sure that the hard drive is connected

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Search for services msc and look up through your services that are running if there is a mysql service running already other than the one you want to run  it could be xampp or wamp  or another service  for example Skype  using the same port as mysql and stop the service so you can run your mysql service

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If using version 8 and you edit the my ini I found that Notepad is putting 3 hex characters at the beginning of the my ini file  EF BB BF  Deleting the 3 characters from the beginning of the file in a hex editor fixes the problem   In version 8 they are accidentally putting Unicode characters in the ini file   This is causing Notepad to save the file with Byte order mark characters   The following line in the file is the culprit  The line   range from 1 to 2 32 - 1     Unique    means that each ID must be different   has 3 Unicode characters   This is causing notepad to append the byte order mark to the text file

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Open Service Right click on MYSQL service select Log on check local system account start service

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This error happened in my case when secure-file-priv was pointing to unexistent folder  make sure it exists and readable   The line of code example in my ini  secure-file-priv  D  MySQL uploads

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non of the above actually works so delete mysql reinstall mysql restore back if any   enjoy

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the MySQL service on local computer started and then stopped  This Error happen when you modified my ini in C  ProgramData MySQL MySQL Server 8 0 my ini not correct   You can search my ini original configuration or checking yours to make sure everything is OK

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Using Community 8 0 17  upgraded from 8 0 16  There may be a more secure way of doing this  but since I m just running a dev box     navigate to the  data folder make SURE the  data folder is EMPTY  If files exist the --initialize option will fail give SYSTEM Full Control permissions on the  data folder go back to your command prompt run mysqld --initialize   you should see all of the required data file structures in the data folder now  If they are not created  the mysqld process has contention or improper security to write into the folder correctly    Now start your named service in whatever fashion you want  SC NET service msc  etc   Assuming all of the files were created properly by --initialize the service will start

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This may be because of changing lower case table names after a server has been already initialized   From the docs      lower case table names can only be configured when initializing the   server  Changing the lower case table names setting after the server   is initialized is prohibited    The solution to this problem is to set lower case table names parameter at server installation as described in the following answer   Can t set lower case table names in MySQL 8 x on Windows 10

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I had this issue after my database was working fine for long time  It turned out it was some data corruption   In the error log I had   2017-02-07T10 11 42 270567Z 0  ERROR  InnoDB  Ignoring the redo log due to missing MLOG CHECKPOINT between the checkpoint 44002250712 and the end 44002250240  2017-02-07T10 11 42 270606Z 0  ERROR  InnoDB  Plugin initialization aborted with error Generic error 2017-02-07T10 11 42 577436Z 0  ERROR  Plugin  InnoDB  init function returned error  2017-02-07T10 11 42 577470Z 0  ERROR  Plugin  InnoDB  registration as a STORAGE ENGINE failed  2017-02-07T10 11 42 577484Z 0  ERROR  Failed to initialize plugins  2017-02-07T10 11 42 577488Z 0  ERROR  Aborting   Then I had to delete the 2 ib logfile  files  and it restarted again

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mysqld --initialize  Run the above after the install command  Then try to start the service - that should work

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Rename or delete the folder under      C  ProgramData MySQL MySQL Server 5 7   folder name change as per your MYSQL version number

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In my case  mysqld was starting and stopping with no error message  I needed to open command prompt using  Run as Administrator   and then run mysqld   I am only doing this for temporary development  I would not recommend running MySQL as an administrator in any case   This was the final step after the above troubleshooting

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After installing it by mysqld --install  Try this mysqld --initialize  We got the same problem but it s now working

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Such a problem can very often come due to configuration errors  Vivek Sethi mentioned 20th December 2012 that it is possible to get logging in the console by running the following command  C  Windows system32 gt  quot C  Program Files MySQL MySQL Server 5 5 bin mysqld quot  --defaults-file  quot C  Program Files MySQL MySQL Server 5 5 my ini quot  --standalone --console  Right-clicking on my service in Windows 10  I recognized the --defaults-file  parameter  and with console logging I was able to see what was wrong in my configuration  In my case the path to datadir  and secure-file-priv  was wrong  I hope others can be empowered as well by being able to see logging details in the console  Good luck

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I had the exact same message as displayed in the question  I have tried many suggestions with little luck  I was about to install WAMP  I m on Windows  and was about to uninstall MySql 8 0 first  when I noticed a program included in the installation   MySQL Installer - Community  so I tried that  With this installer I set up a new connection  added password to root  added another user with password  set my choice of locations for all logs and ran the install  The result was that it now totally works

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If you came across this while installing WAMP64 on Windows 10  Check if data folder in MySQL folder is missing  My WAMP 3 2 3 version installation failed to create such a folder  So wamp icon was orange  1 of 2 services running   A quick fix was to run this command from MySQL location  C  wamp64 bin mysql mysql5 7 31 bin  mysqld --initialize-insecure

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Also remember to give NETWORK SERVICE permission to the folder    Right-click Data folder Select Properties Select Security tab Click Advanced Click Change Permissions    Click Add    Type NETWORK SERVICE Click Check Names Click OK Select Full Control Click OK     four times Start MySQL service

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Follow the below instruction as below to save your day   If you modify my ini not correct  you will find the trouble  the MySQL service on local computer started and then stopped   So you need to check your my ini in  C  ProgramData MySQL MySQL Server 8 0 my ini  again to make sure there is no strange command  If you don t know and want to restore to original  you can search on web with key word  my ini configuration   download the latest and copy it to  C  ProgramData MySQL MySQL Server 8 0 my ini   For whom delete the SQL service on Window or Linux  You can follow these step below    Window   Delete Current Service   You need to stop MySQL80 MySQLXX in Service before carry out the action below Open commandLine of Window and run as administrator  sc delete mysql80  lt   If you use mysql80  it will delete MySQL80 in Service  sc delete mysql  lt   If you use  mysql --initliaze   it will delete MySQL in Service  The command mysqld --initialize just create MySQL in Service of Window or Linux   So when you check it Path Executable  it misses my ini so you can t use you MySQL Server although MySQL Service is working  For MySQL80   C  Program Files MySQL MySQL Server 8 0 bin mysqld exe  --install MySQL80 --defaults-file  C  ProgramData MySQL MySQL Server 8 0 my ini   For MySQLXX   C  Program Files MySQL MySQL Server X X bin mysqld exe  --install MySQLXX --defaults-file  C  ProgramData MySQL MySQL Server X X my ini      It will create MySQLXX Service working with my ini  Then MySQL works normally and you won t need to install your MySQL again   I don t use Linux or Mac so I can t instruct - But you can find the answer above for reference

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You also might have accidentally added some wrong text in my ini file  Make sure no invalid character is added at the beginning of the file

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I see this error when I install MySQL 8 x  edit the max allowed packet in the my ini file  and then restart mysql on a Windows 10 machine  My recommendation  to avoid this issue  is to edit the my ini file in a hex editor  something like Frhed   DO NOT USE NOTEPAD  It does something to the hex layout of the  ini file

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This problem is so complicated and depend on MySQL Version My problem was happened on MySQL 8 0 2  When I ve config my ini file on notepad and save it I soleved following  jhersey29 solution https   stackoverflow com a 55519014 1764354 but little different approch   my solution is restore my ini file and edit config value via Option files on WorkBench Application  workBench Menu Example

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Nothing was working for me but then I checked here  I ran that command qc sc mysql57 and copied the value of BINARY PATH NAME from it  After that I checked this and changed the value of lower case table names from 0 to 2 in my ini file  Then in the command prompt  I ran this command -  lt  lt  BINARY PATH NAME  gt  gt  --install-manual  After that  I started the MySQL57 service and it worked

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The same problem happened with me also  nothing worked    I first deleted the service  in my case MySQL80 and MySQL  by command   sc delete MySQL80 sc delete MySql   and then reinstalled MySQL  Mine was MySQL 8 0  And then everything was back to normal

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Delete or rename the 2 following files from  C  ProgramData MySQL MySQL Server 5 7 Data   ib logfile0 ib logfile1

[mysql] the MySQL service on local computer started and then stopped

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