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• mysql never releases memory

  - by Ishu

  I have a production server clocking about 4 million page views per month. The server has got 8GB of RAM and mysql acts as a database. I am facing problems in handling mysql to take this load. I need to restart mysql twice a day to handle this thing. The problem with mysql is that it starts with some particular occupation, the memory consumed by mysql keeps on increasing untill it reaches the maximum it can consume and then mysql stops responding slowly or does not respond at all, which freezes the server. All my tables are indexed properly and there are no long queries. I need some one to help on how to go about debugging what to do here. All my tables are myisam. I have tried configuring the parameters key_buffer etc but to no rescue. Any sort of help is greatly appreciated. Here are some parameters which may help. mysql --version mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (i686) using readline 5.1 mysql> show variables; +---------------------------------+------------------------------------------------------------+ | Variable_name | Value | +---------------------------------+------------------------------------------------------------+ | auto_increment_increment | 1 | | auto_increment_offset | 1 | | automatic_sp_privileges | ON | | back_log | 50 | | basedir | /usr/ | | bdb_cache_size | 8384512 | | bdb_home | /var/lib/mysql/ | | bdb_log_buffer_size | 262144 | | bdb_logdir | | | bdb_max_lock | 10000 | | bdb_shared_data | OFF | | bdb_tmpdir | /tmp/ | | binlog_cache_size | 32768 | | bulk_insert_buffer_size | 8388608 | | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | | collation_connection | latin1_swedish_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | | completion_type | 0 | | concurrent_insert | 1 | | connect_timeout | 10 | | datadir | /var/lib/mysql/ | | date_format | %Y-%m-%d | | datetime_format | %Y-%m-%d %H:%i:%s | | default_week_format | 0 | | delay_key_write | ON | | delayed_insert_limit | 100 | | delayed_insert_timeout | 300 | | delayed_queue_size | 1000 | | div_precision_increment | 4 | | keep_files_on_create | OFF | | engine_condition_pushdown | OFF | | expire_logs_days | 0 | | flush | OFF | | flush_time | 0 | | ft_boolean_syntax | + -><()~*:""&| | | ft_max_word_len | 84 | | ft_min_word_len | 4 | | ft_query_expansion_limit | 20 | | ft_stopword_file | (built-in) | | group_concat_max_len | 1024 | | have_archive | NO | | have_bdb | YES | | have_blackhole_engine | NO | | have_compress | YES | | have_crypt | YES | | have_csv | NO | | have_dynamic_loading | YES | | have_example_engine | NO | | have_federated_engine | NO | | have_geometry | YES | | have_innodb | YES | | have_isam | NO | | have_merge_engine | YES | | have_ndbcluster | NO | | have_openssl | DISABLED | | have_ssl | DISABLED | | have_query_cache | YES | | have_raid | NO | | have_rtree_keys | YES | | have_symlink | YES | | | init_connect | | | init_file | | | init_slave | | | interactive_timeout | 28800 | | join_buffer_size | 131072 | | key_buffer_size | 2621440000 | | key_cache_age_threshold | 300 | | key_cache_block_size | 1024 | | key_cache_division_limit | 100 | | language | /usr/share/mysql/english/ | | large_files_support | ON | | large_page_size | 0 | | large_pages | OFF | | lc_time_names | en_US | | license | GPL | | local_infile | ON | | locked_in_memory | OFF | | log | OFF | | log_bin | ON | | log_bin_trust_function_creators | OFF | | log_error | | | log_queries_not_using_indexes | OFF | | log_slave_updates | OFF | | log_slow_queries | ON | | log_warnings | 1 | | long_query_time | 8 | | low_priority_updates | OFF | | lower_case_file_system | OFF | | lower_case_table_names | 0 | | max_allowed_packet | 8388608 | | max_binlog_cache_size | 4294963200 | | max_binlog_size | 1073741824 | | max_connect_errors | 10 | | max_connections | 400 | | max_delayed_threads | 20 | | max_error_count | 64 | | max_heap_table_size | 16777216 | | max_insert_delayed_threads | 20 | | max_join_size | 4294967295 | | max_length_for_sort_data | 1024 | | max_prepared_stmt_count | 16382 | | max_relay_log_size | 0 | | max_seeks_for_key | 4294967295 | | max_sort_length | 1024 | | max_sp_recursion_depth | 0 | | max_tmp_tables | 32 | | max_user_connections | 0 | | max_write_lock_count | 4294967295 | | multi_range_count | 256 | | myisam_data_pointer_size | 6 | | myisam_max_sort_file_size | 2146435072 | | myisam_recover_options | OFF | | myisam_repair_threads | 1 | | myisam_sort_buffer_size | 16777216 | | myisam_stats_method | nulls_unequal | | net_buffer_length | 16384 | | net_read_timeout | 30 | | net_retry_count | 10 | | net_write_timeout | 60 | | new | OFF | | old_passwords | OFF | | open_files_limit | 2000 | | optimizer_prune_level | 1 | | optimizer_search_depth | 62 | | pid_file | /var/run/mysqld/mysqld.pid | | plugin_dir | | | port | 3306 | | preload_buffer_size | 32768 | | profiling | OFF | | profiling_history_size | 15 | | protocol_version | 10 | | query_alloc_block_size | 8192 | | query_cache_limit | 1048576 | | query_cache_min_res_unit | 4096 | | query_cache_size | 134217728 | | query_cache_type | ON | | query_cache_wlock_invalidate | OFF | | query_prealloc_size | 8192 | | range_alloc_block_size | 4096 | | read_buffer_size | 2097152 | | read_only | OFF | | read_rnd_buffer_size | 8388608 | | relay_log | | | relay_log_index | | | relay_log_info_file | relay-log.info | | relay_log_purge | ON | | relay_log_space_limit | 0 | | rpl_recovery_rank | 0 | | secure_auth | OFF | | secure_file_priv | | | server_id | 1 | | skip_external_locking | ON | | skip_networking | OFF | | skip_show_database | OFF | | slave_compressed_protocol | OFF | | slave_load_tmpdir | /tmp/ | | slave_net_timeout | 3600 | | slave_skip_errors | OFF | | slave_transaction_retries | 10 | | slow_launch_time | 2 | | socket | /var/lib/mysql/mysql.sock | | sort_buffer_size | 2097152 | | sql_big_selects | ON | | sql_mode | | | sql_notes | ON | | sql_warnings | OFF | | ssl_ca | | | ssl_capath | | | ssl_cert | | | ssl_cipher | | | ssl_key | | | storage_engine | MyISAM | | sync_binlog | 0 | | sync_frm | ON | | system_time_zone | CST | | table_cache | 256 | | table_lock_wait_timeout | 50 | | table_type | MyISAM | | thread_cache_size | 8 | | thread_stack | 196608 | | time_format | %H:%i:%s | | time_zone | SYSTEM | | timed_mutexes | OFF | | tmp_table_size | 33554432 | | tmpdir | /tmp/ | | transaction_alloc_block_size | 8192 | | transaction_prealloc_size | 4096 | | tx_isolation | REPEATABLE-READ | | updatable_views_with_limit | YES | | version | 5.0.77-log | | version_bdb | Sleepycat Software: Berkeley DB 4.1.24: (January 29, 2009) | | version_comment | Source distribution | | version_compile_machine | i686 | | version_compile_os | redhat-linux-gnu | | wait_timeout | 28800 | +---------------------------------+------------------------------------------------------------+

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• SQL SERVER – FIX : ERROR : 4214 BACKUP LOG cannot be performed because there is no current database

  - by pinaldave

  I recently got following email from one of the reader. Hi Pinal, Even thought my database is in full recovery mode when I try to take log backup I am getting following error. BACKUP LOG cannot be performed because there is no current database backup. (Microsoft.SqlServer.Smo) How to fix it? Thanks, [name and email removed as requested] Solution / Fix: This error can happen when you have never taken full backup of your database and you try to attempt to take backup of the log only. Take full backup once and attempt to take log back up. If the name of your database is MyTestDB follow procedure as following. BACKUP DATABASE [MyTestDB] TO DISK = N'C:\MyTestDB.bak' GO BACKUP LOG [MyTestDB] TO DISK = N'C:\MyTestDB.bak' GO Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Backup and Restore, SQL Error Messages, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: SQL Log

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• mysql replication 1x master, 1x slave

  - by clarkk

  I have just setup one master and one slave server, but its not working.. On my website I connect to the slave server and I insert some rows, but they do not appear on the master and vice versa.. What is wrong? This is what I did: Master: -> /etc/mysql/my.cnf [mysqld] log-bin = mysql-master-bin server-id=1 # bind-address = 127.0.0.1 binlog-do-db = test_db Slave: -> /etc/mysql/my.cnf [mysqld] log-bin = mysql-slave-bin server-id=2 # bind-address = 127.0.0.1 replicate-do-db = test_db Slave: terminal 0 > mysql> STOP SLAVE; // and drop tables Master: terminal 1 > mysql> CREATE USER 'repl_slave'@'slave_ip' IDENTIFIED BY 'repl_pass'; mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl_slave'@'slave_ip'; mysql> FLUSH PRIVILEGES; mysql> FLUSH TABLES WITH READ LOCK; -- leave terminal open terminal 2 > shell> mysqldump -u root -pPASSWORD test_db --lock-all-tables > dump.sql mysql> SHOW MASTER STATUS; Slave: terminal 3 > shell> mysql -u root -pPASSWORD test_db < dump.sql terminal 0 > mysql> CHANGE MASTER TO mysql> MASTER_HOST='master_ip', mysql> MASTER_USER='repl_slave', mysql> MASTER_PASSWORD='repl_pass', mysql> MASTER_PORT=3306, mysql> MASTER_LOG_FILE='mysql-master-bin.000003', // terminal 2 > SHOW MASTER STATUS mysql> MASTER_LOG_POS=4, // terminal 2 > SHOW MASTER STATUS mysql> MASTER_CONNECT_RETRY=10; mysql> START SLAVE; mysql> SHOW SLAVE STATUS; Here is the slave status: Array ( [Slave_IO_State] => Waiting for master to send event [Master_Host] => xx.xx.xx.xx [Master_User] => repl_slave [Master_Port] => 3306 [Connect_Retry] => 10 [Master_Log_File] => mysql-master-bin.000003 [Read_Master_Log_Pos] => 106 [Relay_Log_File] => mysqld-relay-bin.000002 [Relay_Log_Pos] => 258 [Relay_Master_Log_File] => mysql-master-bin.000003 [Slave_IO_Running] => Yes [Slave_SQL_Running] => Yes [Replicate_Do_DB] => test_db [Replicate_Ignore_DB] => [Replicate_Do_Table] => [Replicate_Ignore_Table] => [Replicate_Wild_Do_Table] => [Replicate_Wild_Ignore_Table] => [Last_Errno] => 0 [Last_Error] => [Skip_Counter] => 0 [Exec_Master_Log_Pos] => 106 [Relay_Log_Space] => 414 [Until_Condition] => None [Until_Log_File] => [Until_Log_Pos] => 0 [Master_SSL_Allowed] => No [Master_SSL_CA_File] => [Master_SSL_CA_Path] => [Master_SSL_Cert] => [Master_SSL_Cipher] => [Master_SSL_Key] => [Seconds_Behind_Master] => 0 [Master_SSL_Verify_Server_Cert] => No [Last_IO_Errno] => 0 [Last_IO_Error] => [Last_SQL_Errno] => 0 [Last_SQL_Error] => )

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• Why when trying to restore a SQL DB from backup, it keeps referring to backup's original location an

  - by rm

  I've done a full DB backup to C:\Backups\MyDb.bak Then I've setup a job to incrementally back the DB up every day to that same location. Then I've moved the backup files to X:\Backups\, changing the target directory in backup job Now that I try to restore the database from backup, it keeps trying to refer to C:\Backups\MyDb.bak, but that file is no longer there. How do I fix the issue w/o having to move the backup files back to C:\Backups?

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• Recover Ubuntu grub without LiveCD - Can't boot with Ubuntu LiveCD after install Windows

  - by Paulocoghi

  I installed Windows after installing Ubuntu. But Ubuntu is still intact in its partition. I'm trying to run the Ubuntu LiveCD to recover grub, but the LiveCD no longer works. It stops the boot process and does not load completely. I can not run Ubuntu in live mode to recover grub. Is there any way to recover the grub/grub2 without the LiveCD? Edit: [Important] I've downloaded a new Ubuntu 10.10 ISO. I also did the MD5 check. It's all right. Then, I recorded this .iso and still can not load the LiveCD to the end.

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• \G like vertical output in MySQL Workbench for show engine innodb status

  - by KCD

  show engine innodb status; is unusable in MySQL Workbench, as shown here: =====================================120329 12:39:32 INNODB MONITOR OUTPUT=====================================Per second averages calculated from the last 17 seconds-----------------BACKGROUND THREAD-----------------srv_master_thread loops: 192438... However show engine innodb status \G is great on the mysql command line client. Is there any \G equivalent on MySQL workbench or better way to get this information?

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• Good/Better config for MySQL on an EC2 Large Instance

  - by Tim Reynolds

  I have an EC2 Large instance dedicated to MySQL. It will be serving a Joomla/Magento combo so it has a blend of InnoDB and MyISAM tables. I have only worked with MyISAM in the past and am therefore unfamiliar with the settings InnoDB uses. Experiments so far have been less than fruitful, as I keep causing the InnoDB engine to be disabled. My instance is running Ubuntu 10.04 64 bit server edition and has ~7.5G of ram. MySQL is currently using ~0.6% of that, with somewhat poor performance. I would like to configure it to use as much of the system RAM as is reasonable. Testing some settings I learned that the InnoDB logs can't collectively be larger than 4G. Would anyone be able to provide some base InnoDB and MyISAM settings to get my started. Thank you Tim

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• What could cause sudden crash of a MySQL 5.0.67 installation?

  - by Alex R

  I have an old Ubuntu 8.10 32-bit with MySQL 5.0.67. There's 5.7GB of data in it and it grows by about 100MB every day. About 3 days ago, the MySQL instance begin dying suddenly and quitely (no log entry) during the nightly mysqldump. What could be causing it? Upgrading MySQL is a long-term project for me, unless there happens to be a specific bug in 5.0.67 then I guess I'll just need to reprioritize. I'm hoping somebody might be familiar with this problem since this is a fairly popular version bundled with Ubuntu 8.10. Thanks

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• InnoDB table locks without apparent reason

  - by Skreo

  Hi, I have an InnoDB table for visitors' counting, which has perfectly worked for several years, but it failed twice yesterday, may be cause of the increase of visitors Without apparent reason, this table locked, with hundreds of DELETE an REPLACE INTO queries (+500) with "updating" or "cleaning up" status. (I've no more the copy of the processlist...) This table contains few entries, between 500 and 1500, so the updating queries are usualy very fast and don't lock. I don't know where I must search to find the cause of this problem and resolve it definitively. But I guess this could give you a better vision of the problem : mysql> show global status like "%innodb_row_lock%"; +-------------------------------+-----------+ | Variable_name | Value | +-------------------------------+-----------+ | Innodb_row_lock_current_waits | 0 | | Innodb_row_lock_time | 132004175 | | Innodb_row_lock_time_avg | 10521 | | Innodb_row_lock_time_max | 59373 | | Innodb_row_lock_waits | 12546 | +-------------------------------+-----------+ 5 rows in set (0.00 sec) Sorry for my poor english, and thanks for your help ;-)

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• Innodb statistics

  - by user64204

  We're running InnoDB as a MySQL engine and using phpMyadmin to administer our database. Under Status - Query statistics, phpMyadmin gives us the following: We would like to know where these figures come from because we would like to create a Munin graph showing the evolution of these statistics over time. When we run the SHOW STATUS; query here is what we get: Innodb_rows_deleted 247555 Innodb_rows_inserted 822911 Innodb_rows_read 694934413 Innodb_rows_updated 15048 As you can see there is a substantial difference although both were taking almost at the same time. Q: Do you know where phpMyadmin gets its values from?

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• How to get a table creation script in MySQL Workbench?

  - by estourodepilha.com

  I am rolling back to MySQL GUI Tools' MySQL Query Browser since I can't find the shortcut to get a table's creation script in MySQL Workbench.

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• What's the quickest way to dump & load a MySQL InnoDB database using mysqldump?

  - by Josh Schwartzman

  I would like to create a copy of a database with approximately 40 InnoDB tables and around 1.5GB of data with mysqldump and MySQL 5.1. What are the best parameters (ie: --single-transaction) that will result in the quickest dump and load of the data? As well, when loading the data into the second DB, is it quicker to: 1) pipe the results directly to the second MySQL server instance and use the --compress option or 2) load it from a text file (ie: mysql < my_sql_dump.sql)

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• SQL SERVER – Fix : Error : 3117 : The log or differential backup cannot be restored because no files

  - by pinaldave

  I received the following email from one of my readers. Dear Pinal, I am new to SQL Server and our regular DBA is on vacation. Our production database had some problem and I have just restored full database backup to production server. When I try to apply log back I am getting following error. I am sure, this is valid log backup file. Screenshot is attached. [Few other details regarding server/ip address removed] Msg 3117, Level 16, State 1, Line 1 The log or differential backup cannot be restored because no files are ready to roll forward. Msg 3013, Level 16, State 1, Line 1 RESTORE LOG is terminating abnormally. Screenshot attached. [Removed as it contained live IP address] Please help immediately. Well I have answered this question in my earlier post, 2 years ago, over here SQL SERVER – Fix : Error : Msg 3117, Level 16, State 4 The log or differential backup cannot be restored because no files are ready to rollforward. However, I will try to explain it a little more this time. For SQL Server database to be used it should in online state. There are multiple states of SQL Server Database. ONLINE (Available – online for data) OFFLINE RESTORING RECOVERING RECOVERY PENDING SUSPECT EMERGENCY (Limited Availability) If the database is online, it means it is active and in operational mode. It will not make sense to apply further log from backup if the operations have continued on this database. The common practice during the backup restore process is to specify the keyword RECOVERY when the database is restored. When RECOVERY keyword is specified, the SQL Server brings back the database online and will not accept any further log backups. However, if you want to restore more than one backup files, i.e. after restoring the full back up if you want to apply further differential or log backup you cannot do that when database is online and already active. You need to have your database in the state where it can further accept the backup data and not the online data request. If the SQL Server is online and also accepts database backup file, then there can be data inconsistency. This is the reason that when there are more than one database backup files to be restored, one has to restore the database with NO RECOVERY keyword in the RESTORE operation. I suggest you all to read one more post written by me earlier. In this post, I explained the time line with image and graphic SQL SERVER – Backup Timeline and Understanding of Database Restore Process in Full Recovery Model. Sample Code for reference: RESTORE DATABASE AdventureWorks FROM DISK = 'C:\AdventureWorksFull.bak' WITH NORECOVERY; RESTORE DATABASE AdventureWorks FROM DISK = 'C:\AdventureWorksDiff.bak' WITH RECOVERY; In this post, I am not trying to cover complete backup and recovery. I am just attempting to address one type of error and its resolution. Please test these scenarios on the development server. Playing with live database backup and recovery is always very crucial and needs to be properly planned. Leave a comment here if you need help with this subject. Similar Post: SQL SERVER – Restore Sequence and Understanding NORECOVERY and RECOVERY Note: We will cover Standby Server maintenance and Recovery in another blog post and it is intentionally, not covered this post. Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, Readers Question, SQL, SQL Authority, SQL Backup and Restore, SQL Error Messages, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• dependency problems at installation from mysql-server-5.5

  - by Furtano

  qcons@014-QCONS:/var/lib$ sudo apt-get install -f mysql-server Paketlisten werden gelesen... Fertig Abhängigkeitsbaum wird aufgebaut Statusinformationen werden eingelesen... Fertig mysql-server ist schon die neueste Version. 0 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht aktualisiert. 2 nicht vollständig installiert oder entfernt. Nach dieser Operation werden 0 B Plattenplatz zusätzlich benutzt. Möchten Sie fortfahren [J/n]? j mysql-server-5.5 (5.5.28-0ubuntu0.12.04.2) wird eingerichtet ... 121112 11:16:52 [Note] Plugin 'FEDERATED' is disabled. 121112 11:16:52 InnoDB: The InnoDB memory heap is disabled 121112 11:16:52 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121112 11:16:52 InnoDB: Compressed tables use zlib 1.2.3.4 121112 11:16:52 InnoDB: Initializing buffer pool, size = 128.0M 121112 11:16:52 InnoDB: Completed initialization of buffer pool 121112 11:16:52 InnoDB: highest supported file format is Barracuda. 121112 11:16:53 InnoDB: Waiting for the background threads to start 121112 11:16:54 InnoDB: 1.1.8 started; log sequence number 1595675 121112 11:16:54 InnoDB: Starting shutdown... 121112 11:16:54 InnoDB: Shutdown completed; log sequence number 1595675 start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: Fehler beim Bearbeiten von mysql-server-5.5 (--configure): Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück dpkg: Abhängigkeitsprobleme verhindern Konfiguration von mysql-server: mysql-server hängt ab von mysql-server-5.5; aber: Paket mysql-server-5.5 ist noch nicht konfiguriert. dpkg: Fehler beim Bearbeiten von mysql-server (--configure): Abhängigkeitsprobleme - verbleibt unkonfiguriert Es wurde kein Apport-Bericht verfasst, da die Fehlermeldung darauf hindeutet, dass dies lediglich ein Folgefehler eines vorherigen Problems ist. Fehler traten auf beim Bearbeiten von: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1)

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• Backup software for incremental swapped-out drives?

  - by user13743

  We're using Acronis Home 11 to backup our main Windows machine at the office. We have a set of portable hard drives that we swap out each week, for redundancy. We have incremental sets ( a new diff of the entire series each night) building on each drive. However, from time to time, Acronis gets confused and sometimes makes a new full backup. This eats up a lot of drive on the disks. Also, I have to trick the Acronis script each time I swap out a drive and point it to the new incremental backup set. Finally, if a drive gets full, there's no way to partition the backup set on a drive. I found this out the hard way, and now one drive is full with one backup set. So now on the other drive, I have three folders of backup sets. When one starts to get full, I delete the oldest one and start a new set. That way one single drive never gets filled up with one single backup set. I'm looking for a backup software that can backup Windows in incremental sets, and doesn't get tripped up with swapped out drives. Is there a better solution?

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• Finding a backup and synchronization solution

  - by Andrea Zilio

  I'm having difficulties to find a backup and synchronization solution with the following characteristics: Cross-platform: Windows, Linux, Mac Offsite backup (so Internet Backup) Data deduplication Transfer only new/modified bits of modified files Secure: Data encrypted before leaving computer Maintain multiple versions of files (even deleted files) Folder synchronization integrated with backup and across multiple computers connected to the internet (not necessarily in the same LAN) I think that the Folder Sync feature needs a better explanation. The use case is this: you have a desktop pc and a laptop. The desktop pc contains a folder with some files and this folder is part of the backup (so it was selected to be backed up). The laptop does not contain that folder or that files at all. Then you're abroad with your laptop and you need that folder. So you want to be able to open the backup program, select that folder from the backup and download it in your laptop mantaining it synchronized with the backed up version. When you then come back home and switch on your desktop pc you want the folder we're talking about to be updated in the desktop PC. Does anyone knows any service with all these features? I've only found SpiderOak to support all the features I've mentioned but I'm not completely satisfied by the time taken to complete a backup. Sometimes it seems to hang for minutes with no reasons at all and folder synchronization occurs only after all files are backed up (instead folder sync should have a separated queue independent from other backup operations and synchronization should occurs frequently... for example every 5 minutes or less, independently from the frequency of normal backup operations)

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• Mysql start fails with Operating System error 13

  - by curious

  I have XAMPP on my Ubuntu Lucid system and everything worked fine. But there seems to be some problem now and mysql wouldn't start. I had tried to recover a few Drupal databases and hence copied the raw files to /opt/lampp/var/mysql folder like all other database folders. And, I guess that could have caused the problem. I am pasting the last few lines of the error log. Someone please help me out. 100814 15:17:47 mysqld_safe Starting mysqld daemon with databases from /opt/lampp/var/mysql 100814 15:17:47 [Note] Plugin 'FEDERATED' is disabled. 100814 15:17:47 [ERROR] Can't open shared library 'libpbxt.so' (errno: 0 API version for STORAGE ENGINE plugin is too different) 100814 15:17:47 [Warning] Couldn't load plugin named 'PBXT' with soname 'libpbxt.so'. 100814 15:17:48 InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name /opt/lampp/var/mysql/ibdata1 InnoDB: File operation call: 'open'. InnoDB: Cannot continue operation.

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• MySql backup (MySqldump questions)

  - by Camran

  I have a vps with ubuntu 9 server. I need to backup my MySql database. Can MySql make backups automatically? If so, how? If not, how should I do it then? The website is a classifieds website (PHP, MySql etc) Thanks

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• sudo apt-get install mysql-server fails

  - by danwoods

  Hi all, I'm coming from a fresh install of Ubuntu server 9.10 and trying to install mysql-server by using 'sudo apt-get mysql-server' I get the following errors: dan@dev:~$ sudo apt-get install mysql-server [sudo] password for dan: Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libdbd-mysql-perl libdbi-perl libhtml-template-perl libnet-daemon-perl libplrpc-perl mysql-client-5.1 mysql-server-5.1 Suggested packages: dbishell libipc-sharedcache-perl tinyca The following NEW packages will be installed: libdbd-mysql-perl libdbi-perl libhtml-template-perl libnet-daemon-perl libplrpc-perl mysql-client-5.1 mysql-server mysql-server-5.1 0 upgraded, 8 newly installed, 0 to remove and 0 not upgraded. Need to get 16.5MB of archives. After this operation, 39.0MB of additional disk space will be used. Do you want to continue [Y/n]? y Get:1 http://us.archive.ubuntu.com karmic/main libnet-daemon-perl 0.43-1 [46.9kB] Get:2 http://us.archive.ubuntu.com karmic/main libplrpc-perl 0.2020-2 [36.0kB] Get:3 http://us.archive.ubuntu.com karmic/main libdbi-perl 1.609-1 [800kB] Get:4 http://us.archive.ubuntu.com karmic/main libdbd-mysql-perl 4.011-1ubuntu1 [136kB] Get:5 http://us.archive.ubuntu.com karmic-updates/main mysql-client-5.1 5.1.37- 1ubuntu5.1 [8,202kB] Get:6 http://us.archive.ubuntu.com karmic-updates/main mysql-server-5.1 5.1.37-1ubuntu5.1 [7,186kB] Get:7 http://us.archive.ubuntu.com karmic/main libhtml-template-perl 2.9-1 [65.8kB] Get:8 http://us.archive.ubuntu.com karmic-updates/main mysql-server 5.1.37-1ubuntu5.1 [64.3kB] Fetched 16.5MB in 1min 34s (175kB/s) Preconfiguring packages ... Selecting previously deselected package libnet-daemon-perl. (Reading database ... 123083 files and directories currently installed.) Unpacking libnet-daemon-perl (from .../libnet-daemon-perl_0.43-1_all.deb) ... Selecting previously deselected package libplrpc-perl. Unpacking libplrpc-perl (from .../libplrpc-perl_0.2020-2_all.deb) ... Selecting previously deselected package libdbi-perl. Unpacking libdbi-perl (from .../libdbi-perl_1.609-1_i386.deb) ... Selecting previously deselected package libdbd-mysql-perl. Unpacking libdbd-mysql-perl (from .../libdbd-mysql-perl_4.011-1ubuntu1_i386.deb) ... Selecting previously deselected package mysql-client-5.1. Unpacking mysql-client-5.1 (from .../mysql-client-5.1_5.1.37-1ubuntu5.1_i386.deb) ... Selecting previously deselected package mysql-server-5.1. Unpacking mysql-server-5.1 (from .../mysql-server-5.1_5.1.37-1ubuntu5.1_i386.deb) ... Selecting previously deselected package libhtml-template-perl. Unpacking libhtml-template-perl (from .../libhtml-template-perl_2.9-1_all.deb) ... Selecting previously deselected package mysql-server. Unpacking mysql-server (from .../mysql-server_5.1.37-1ubuntu5.1_all.deb) ... Processing triggers for man-db ... Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot Setting up libnet-daemon-perl (0.43-1) ... Setting up libplrpc-perl (0.2020-2) ... Setting up libdbi-perl (1.609-1) ... Setting up libdbd-mysql-perl (4.011-1ubuntu1) ... Setting up mysql-client-5.1 (5.1.37-1ubuntu5.1) ... Setting up mysql-server-5.1 (5.1.37-1ubuntu5.1) ... * Stopping MySQL database server mysqld [ OK ] * Starting MySQL database server mysqld [fail] invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.1 (--configure): subprocess installed post-installation script returned error exit status 1 Setting up libhtml-template-perl (2.9-1) ... dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.1; however: Package mysql-server-5.1 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: mysql-server-5.1 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) What am I missing? [update] mysqld returns: dan@dev:~$ sudo mysqld [sudo] password for dan: 100220 12:18:17 [Note] Plugin 'FEDERATED' is disabled. InnoDB: Unable to lock ./ibdata1, error: 11 InnoDB: Check that you do not already have another mysqld process InnoDB: using the same InnoDB data or log files. 100220 12:18:17 InnoDB: Retrying to lock the first data file InnoDB: Unable to lock ./ibdata1, error: 11 InnoDB: Check that you do not already have another mysqld process This goes on for a while... InnoDB: Unable to lock ./ibdata1, error: 11 InnoDB: Check that you do not already have another mysqld process InnoDB: using the same InnoDB data or log files. ^[[BInnoDB: Unable to lock ./ibdata1, error: 11 InnoDB: Check that you do not already have another mysqld process InnoDB: using the same InnoDB data or log files. 100220 12:19:57 InnoDB: Unable to open the first data file InnoDB: Error in opening ./ibdata1 100220 12:19:57 InnoDB: Operating system error number 11 in a file operation. InnoDB: Error number 11 means 'Resource temporarily unavailable'. InnoDB: Some operating system error numbers are described at InnoDB: http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html InnoDB: Could not open or create data files. InnoDB: If you tried to add new data files, and it failed here, InnoDB: you should now edit innodb_data_file_path in my.cnf back InnoDB: to what it was, and remove the new ibdata files InnoDB created InnoDB: in this failed attempt. InnoDB only wrote those files full of InnoDB: zeros, but did not yet use them in any way. But be careful: do not InnoDB: remove old data files which contain your precious data! 100220 12:19:57 [ERROR] Plugin 'InnoDB' init function returned error. 100220 12:19:57 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 100220 12:19:57 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use 100220 12:19:57 [ERROR] Do you already have another mysqld server running on port: 3306 ? 100220 12:19:57 [ERROR] Aborting 100220 12:19:57 [Warning] Forcing shutdown of 1 plugins 100220 12:19:57 [Note] mysqld: Shutdown complete How can I check what process is using port: 3306? [Update]: sudo netstat -anp | grep LISTEN returns dan@dev:~$ sudo netstat -anp | grep LISTEN [sudo] password for dan: tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 1372/master tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 4391/mysqld tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1409/cupsd tcp6 0 0 ::1:631 :::* LISTEN 1409/cupsd [More Updates]: I can log into mysql if that makes a difference

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• MySQL Connect Content Catalog Live

  - by Bertrand Matthelié

  The MySQL Connect Content Catalog is now live and you can check out the great program the content committee put together for you. We received a lot of very good submissions during the call for papers and we’d like to thank you all again for those, it was a very difficult job to choose. Overall MySQL Connect will in two days include: Keynotes, with speakers such as Oracle Chief Corporate Architect Edward Screven and Vice President of MySQL Engineering Tomas Ulin 66 conference sessions, enabling you to hear from: Oracle engineers on MySQL 5.6 new features, InnoDB, performance and scalability, security, NoSQL, MySQL Cluster…and more MySQL users and customers including Facebook, Twitter, PayPal, Yahoo, Ticketmaster, and CERN Internationally recognized MySQL community members and partners on topics such as performance, security or high availability 6 Birds-of-a-feather sessions, in which you’ll be able to engage into passionate discussions about replication, backup and other subjects, and help influence the MySQL roadmap 8 Hands-On Labs designed to give you hands-on experience about MySQL replication, MySQL Cluster, the MySQL Performance Schema…and more Demo pods about MySQL Workbench, MySQL Cluster, MySQL Enterprise Edition and other technologies and services We’ll also have networking receptions on both Saturday and Sunday evening, enabling you to discuss with the Oracle engineers developing and supporting the MySQL products, as well as with other users and customers. Additionally, you’ll have the opportunity to meet and learn from our partners in the exhibition hall. Some of the MySQL Connect speakers such as Henrik Ingo and Andrew Morgan have already blogged about their presence at MySQL Connect, and you can find more information about their sessions or their thoughts about the conference in their blogs. We also published an interview with Tomas Ulin a few weeks ago. In summary, don’t miss MySQL Connect! And you only have about 3 weeks left to register with the early bird discount and save US$500. Don’t wait, Register Now! Interested in sponsorship and exhibit opportunities? You will find more information here.

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• Installing mysql-server on 10.04LTS gives "404 Not Found" error

  - by bc1

  Hi I am trying to install mysql on Ubuntu 10.04LTS (Lucid Lynx) and I am getting this error. Is this a server side issue - is the server up? I am running this from the command line on a remote server... sudo apt-get install mysql-server Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libdbd-mysql-perl libdbi-perl libhtml-template-perl libmysqlclient16 libnet-daemon-perl libplrpc-perl mysql-client-5.1 mysql-client-core-5.1 mysql-common mysql-server-5.1 mysql-server-core-5.1 psmisc Suggested packages: dbishell libipc-sharedcache-perl tinyca mailx The following NEW packages will be installed: libdbd-mysql-perl libdbi-perl libhtml-template-perl libmysqlclient16 libnet-daemon-perl libplrpc-perl mysql-client-5.1 mysql-client-core-5.1 mysql-common mysql-server mysql-server-5.1 mysql-server-core-5.1 psmisc 0 upgraded, 13 newly installed, 0 to remove and 85 not upgraded. Need to get 23.2MB/24.3MB of archives. After this operation, 61.7MB of additional disk space will be used. Do you want to continue [Y/n]? Y Err http://archive.ubuntu.com/ubuntu/ lucid-updates/main mysql-common 5.1.62-0ubuntu0.10.04.1 404 Not Found [IP: 91.189.92.192 80] <more of the same error messages here> Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/m/mysql-dfsg-5.1/mysql-common_5.1.62-0ubuntu0.10.04.1_all.deb 404 Not Found [IP: 91.189.92.166 80] <more of the same error messages here> E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

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• Problem after mysql-server installation I cant install any thing in ubuntu 12.04.1 now

  - by mohammed ezzi

  I'm not an advanced user of Linux and I tried to install work with database so I installed Mysql-server, I think I did same thing wrong so I get in trouble and now I cant install any thing and this what I get when I use apt-get -f install : root@me:~# apt-get -f install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: mysql-server mysql-server-5.5 Suggested packages: tinyca mailx The following packages will be upgraded: mysql-server mysql-server-5.5 2 upgraded, 0 newly installed, 0 to remove and 194 not upgraded. 2 not fully installed or removed. Need to get 0 B/8,737 kB of archives. After this operation, 15.4 kB of additional disk space will be used. Do you want to continue [Y/n]? y dpkg: dependency problems prevent configuration of mysql-server-5.5: mysql-server-5.5 depends on mysql-server-core-5.5 (= 5.5.24-0ubuntu0.12.04.1); however: Version of mysql-server-core-5.5 on system is 5.5.28-0ubuntu0.12.04.3. dpkg: error processing mysql-server-5.5 (--configure): dependency problems - leaving unconfigured No apport report written because MaxReports is reached already dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured No apport report written because MaxReports is reached already Errors were encountered while processing: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) I tried to remove mysql-server but nothing happened.

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• A Successful OTN MySQL Developer Day in Paris

  - by Bertrand Matthelié

  @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } On Wednesday this week Oracle held its first MySQL Developer Day in France. The room was packed with close to 100 people eager to learn more about MySQL. @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } We got great feedback from the attendees who could hear about the new MySQL Cluster 7.2 features, NoSQL Access to MySQL and MySQL Cluster, MySQL performance tuning in MySQL 5.5 and in MySQL 5.6…and more. Sessions included MySQL Essentials MySQL Replication and Scalability Developing MySQL Applications with Java and PHP MySQL Cluster Testing early releases of MySQL in a sandbox (by guest speaker and Oracle ACE Director for MySQL Giuseppe Maxia) MySQL Performance Tuning MySQL Enterprise Edition Management Tools Developing MySQL applications for ISVs & OEMs Thank you to all attendees for your active participation, and to all speakers for great and engaging presentations! More OTN MySQL Developer Days to come…stay tuned.

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• Total newb having SSH and remote MySQL access problems

  - by kscott

  I don't often work with linux or need to SSH into remote MySQL databases, so pardon my ignorance. For months I had been using the HeidiSQL client application to remotely access a MySQL database. Today two things happened: the DB moved to a new server and I updated HeidiSQL, now I cannot log in to the MySQL server, when attempting I get this message from Heidi: SQL Error (2003) in statement #0: Can't connect to MySQL server on 'localhost' (10061) If I use Putty, I can connect to the server and get MySQL access through command line, including fetching data from the DB. I assume this means my credentials and address are correct, but do not understand why putting those same details into HeidiSQL's SSH tunnel info won't work. I also downloaded the MySQL Workbench and attempted to set up a connection through that client and got this message: Cannot Connect to Database Server Your connection attempt failed for user 'myusername' from your host to server at localhost:3306: Lost connection to MySQL server at 'reading initial communication packet', system error: 0 Please: 1 Check that mysql is running on server localhost 2 Check that mysql is running on port 3306 (note: 3306 is the default, but this can be changed) 3 Check the myusername has rights to connect to localhost from your address (mysql rights define what clients can connect to the server and from which machines) 4 Make sure you are both providing a password if needed and using the correct password for localhost connecting from the host address you're connecting from From Googling around I see that it could be related to the MySQL bind-address, but I am a third party sub-contractor with no access to the MySQL settings of this box and the system admin is assuring me that I'm an idiot and need to figure it out on my end. This is completely possible but I don't know what else to try. Edit 1 - The client settings I am using In Heidi and MySQL Workbench I am using the following: SSH host + port: theHostnameOfTheRemoteServer.com:22 {this is the same host I can Putty to} SSH Username: mySSHusername {the same user name I use for my Putty connection} SSH Password: mySSHpassword {the same password for the Putty connection} Local port: 3307 MySQL host: theHostnameOfTheRemoteServer.com MySQL User: mySQLusername {which I can connect with once in with Putty} MySQL Password: mySQLpassword {which works once in with Putty} Port: 3306

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• Trouble restoring an iPod touch backup

  - by stringo0

  I ran into some problems with my iPod, and am trying to restore a backup following this link - http://support.apple.com/kb/HT1414 I tried following the section under "Restoring your iPhone or iPod touch". When it gets to step 9, it simply doesn't show up - the restore happens, the iPod restarts, but I DO NOT get an option to set it up as a new device, or restore a backup. A backup does exist (checked the location). Any ideas on how I can restore the backup?

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