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• MySQL crash. Unknown cause. Signal 11

  - by fortmac

  This is a database that I installed ~6 months ago and had been running fine. This is currently running in Ubuntu 12.04. Attempting to connect to MySQL causes this error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) Then theres: $ sudo mysqld which returns: 130702 15:38:54 [Note] Plugin 'FEDERATED' is disabled. 130702 15:38:54 InnoDB: The InnoDB memory heap is disabled 130702 15:38:54 InnoDB: Mutexes and rw_locks use GCC atomic builtins 130702 15:38:54 InnoDB: Compressed tables use zlib 1.2.3.4 130702 15:38:54 InnoDB: Initializing buffer pool, size = 128.0M 130702 15:38:54 InnoDB: Completed initialization of buffer pool 130702 15:38:54 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130702 15:38:54 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130702 15:38:55 InnoDB: Waiting for the background threads to start 130702 15:38:56 InnoDB: 1.1.8 started; log sequence number 5201901917 130702 15:38:56 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 130702 15:38:56 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 130702 15:38:56 [Note] Server socket created on IP: '127.0.0.1'. 130702 15:38:56 [Note] Event Scheduler: Loaded 0 events 130702 15:38:56 [Note] mysqld: ready for connections. Version: '5.5.28-0ubuntu0.12.04.3' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) 19:39:02 UTC - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=16777216 read_buffer_size=131072 max_used_connections=1 max_threads=151 thread_count=1 connection_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 346681 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7f9509e51530 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7f94f1d3de60 thread_stack 0x30000 mysqld(my_print_stacktrace+0x29)[0x7f95083427b9] mysqld(handle_fatal_signal+0x483)[0x7f9508209b43] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f9506f5bcb0] mysqld(+0x320e1c)[0x7f9508113e1c] mysqld(_ZN4JOIN15alloc_func_listEv+0x9c)[0x7f950812391c] mysqld(_ZN4JOIN7prepareEPPP4ItemP10TABLE_LISTjS1_jP8st_orderS7_S1_S7_P13st_select_lexP18st_select_lex_unit+0x918)[0x7f9508124658] mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x130)[0x7f950812d060] mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x17c)[0x7f9508132fbc] mysqld(+0x2f6714)[0x7f95080e9714] mysqld(_Z21mysql_execute_commandP3THD+0x16d8)[0x7f95080f1178] mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7f95080f5e0f] mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1380)[0x7f95080f7260] mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7f950819b80d] mysqld(handle_one_connection+0x50)[0x7f950819b870] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f9506f53e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f9506684cbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f94e0004b80): is an invalid pointer Connection ID (thread ID): 1 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. I'm at a loss. What other reports would be useful in diagnosing this? /var/log/mysql.err & /var/log/mysql.log are empty.

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• Sphinx Mysql Tutorial Help

  - by Frederico

  I have just implemented the Sphinx Storage Engine, and created my first Sphinx table, I'm trying to convert from using my Fulltext MyISAM table, so I figured I would just dump all the data into a sphinx table.. obviously I was wrong. Are there any great tutorials that really take you through transforming a fulltext search on MySQL to a sphinx table? Thanks in advance.

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• use a variable for table name in mysql sproc

  - by Kyle

  I'm trying to pass a table name into my mysql stored procedure to use this sproc to select off of different tables but it's not working... this is what I"m trying: CREATE PROCEDURE `usp_SelectFromTables`( IN TableName varchar(100) ) BEGIN SELECT * FROM @TableName; END I've also tried it w/o the @ sign and that just tells me that TableName doesn't exist...which I know :)

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• Is this MySql Query Statement correct?

  - by Stanley Ngumo

  Hi I would like to know whether this MySql statement will be executed correctly, "SELECT sum(price) FROM products WHERE productid IN (SELECT productid FROM shoppingcart WHERE sessionid=".$this->$sessionid.")" And if not please give me pointers as to where I am wrong. Thanks

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• 50 million+ Rows of Data - CSV or MySQL

  - by eWizardII

  Hello, I have a CSV file which is about 1GB big and contains about 50million rows of data, I am wondering is it better to keep it as a CSV file or store it as some form of a database. I don't know a great deal about MySQL to argue for why I should use it or another database framework over just keeping it as a CSV file. I am basically doing a Breadth-First Search with this dataset, so once I get the initial "seed" set the 50million I use this as the first values in my queue. Thanks,

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• MySQL INSERT and SELECT Order of precedence

  - by Carlos Dubus

  Hi, if an INSERT and a SELECT are done simultaneously on a mysql table which one will go first? Example: Suppose "users" table row count is 0. Then this two queries are run at the same time (assume it's at the same mili/micro second): INSERT into users (id) values (1) and SELECT COUNT(*) from users Will the last query return 0 or 1?

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• Connecting to remote mysql database with API

  - by Ajay

  I am designing a desktop application in C#, which needs to be connected to my online mysql database. I tried to give access in control panel a "%" which means from any IP, but it is not working. May be the hosting provider (bigrock) not allowing that. Alternatively, I am trying to write some code in online on PHP which will get the "sql" as parameter and returns the output as JSON format using json_encode. Is there any alternate methods which is better approach.

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• MySQL Problems......

  - by Kovu

  With the tool "mysql administrator" i get a complete connection to my database, I can change userthings and so on. But not PHPMyAdmin nor Joomly Installation will get a connection, they timed out. Any Ideas?

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• Error in connecting to MySql Host

  - by Mark

  Can anyone tell me on how this error arise? 'Unable to connect to any of the specified MySQL hosts.'

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• PHPFOG and MySql

  - by jim dif

  I am playing around with PHPFog and as a result I ended up with a MySql database. I am trying to figure out how to connect to it with a success message. PHPFog says use this: mysql_connect( $server = getenv('MYSQL_DB_HOST'), $username = getenv('MYSQL_USERNAME'), $password = getenv('MYSQL_PASSWORD')); mysql_select_db(getenv('MYSQL_DB_NAME')); So I basically plug my variables into the above? Or Do I do something different? Thanks, Jim

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• connect java application to mysql server in netbeans 6.8

  - by Avadhesh sharma

  i am beginner in java as well as in netbeans .please give me complete procedure how i can connect my java application to mysql to insert data .

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• data caching in mysql

  - by Praveen Prasad

  can we cache queries in mysql with php. or please suggest me some ways to do so.

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• MySQL: Updating entry WITHOUT updating timestamp

  - by Yongho

  I have a timestamp in a mysql table with attribute "ON UPDATE CURRENT_TIMESTAMP". Is there a way to manually disable updating the timestamp on a special occasion? (eg: updating the entry to revise a blog post, but not to re-date it)

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• Connect to MySQL in Ruby using NetBeans

  - by Varun

  I've downloaded the "dbd-mysql-0.4.4.zip" and linked it to my project. While I try to run a demo code from NetBeans the very first line require "dbi" gives me an error. Is there a different way to do it? I also tried jruby setup.rb config --with=dbi,dbd_mysql from the command prompt and it gave me the following error: config: unknown option --with=dbi,dbd_mysql Try 'ruby setup.rb --help' for detailed usage. Any suggestions please?

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• How do I generate site map from MySQL database

  - by mathew

  Hi all I am new to Php and working on a project which needs to generate sitemaps from URLS which stored in MySQL database. how can I do this?? Is there any one have any idea?? site maps can be in php extension too and only requirement is list of sites display in each page

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• Repeating events in a MySQL DB

  - by kylex

  I'm needing to create a MySQL database that is capable repeating events in the exact same way that google calendar repeats events. What is the best way to structure the table(s) to do this?

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• passing LIMIT as parameters to MySQL sproc

  - by Kyle

  I'm creating a paging class and need to pass in two parameters to my MySQL stored procedure for the LIMIT clause. I'm passing them in as INTs and trying something like this SELECT * FROM `MyTable` LIMIT MyFirstParamInt, MySecondParamInt it gives me an error when I try and save the sproc though. Is there a way to do this that I'm just missing? Or am I going to have to EVAL the whole query and EXECUTE it?

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• Update Mysql database with dataset changings? (C#)

  - by Ases

  I'm changing my dataset in my program. And when my job was finished, I'm connecting to mysql database. I don't want to do this job again, how can I send changings to database like this mydatadapter.Update(dataset, " table"); I found this code, but I can't run it :S

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• Native language problem in mysql with tinyMCE

  - by jasmine

  I have turkish character problem in mysql database when adding content with tinymce from admin panel. Charset is: <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-9"" /> How can I solve this? Thanks in advance

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• How to kill locked mysql queries

  - by jcure

  Hi, I am creating and testing a mysql join query but each time so far it causes the database tables to lockup and the site hangs. I have to then call the host and they kill the locked queries. Is this something I can do from phpmyadmin so not to bother them while I tweak the script to work? Thanks for any reply.

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• php date will not insert into mysql database

  - by Piers Blinco

  this is a strange one. I have a date, that is converted to mm-dd-yyyy when posting it to mysql i have re-ordered it to yyyy-mm-dd but yet it still will not insert $date = date("Y-m-d", strtotime($_POST['leaving_date']) ); any advice? Cheers EDIT The actual query: mysql_query("INSERT INTO booking_info (customer_id, booking_ref, date_of_travel) VALUES (".mysql_real_escape_string($_POST['customer_id']).", ".mysql_real_escape_string($rnd).", ".mysql_real_escape_string($date).")");

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• fastest way to copy a table in mysql

  - by Anon

  which one is the fastest way to completely copy a table on mysql ? CREATE TABLE copy LIKE original; INSERT INTO copy SELECT * FROM original; or CREATE TABLE copy SELECT * FROM original; ALTER TABLE copy ADD PRIMARY KEY (id); or theres another way ? PS. can't use command-line tools like mysqldump, must be on-the-fly.

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• opening pdf file using php that take data from mysql

  - by Sahar

  hello, anyone can plz help me? i wanted to create pdf file using php and have done it. now i want to create pdf file that get data from mysql table.. i've searched for the sample code for long time but didnt find even a single code related to my query.. thanx in advance

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• MySQL function to compare values in a db table against the previous

  - by Stuart

  Iam quite new to functions in SQL and I would like to create a function to compare values in a MySQL table against previous and I am not sure how to do this. For example (iId is the input value) DECLARE pVal INT(20); DECLARE val INT(20); SELECT price INTO pVal FROM products WHERE Id=iId; SELECT price FROM products; IF price == pVal THEN SET val = price; END IF; Thanks

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• Maximum number of records in a MySQL database table

  - by pepernik

  What is the upper limit of records for MySQL database table. I'm wondering about autoincrement field. What would happen if I add milions of records? How to handle this kind of situations? Thx!

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