{"id":115474,"date":"2024-05-01T18:46:44","date_gmt":"2024-05-01T16:46:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupna-subd-mysql-8-4-0-lts"},"modified":"2024-05-01T18:46:44","modified_gmt":"2024-05-01T16:46:44","slug":"dostupna-subd-mysql-8-4-0-lts","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/dostupna-subd-mysql-8-4-0-lts","title":{"rendered":"K dispozici je datab\u00e1ze MySQL 8.4.0 LTS.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spole\u010dnost Oracle vytvo\u0159ila novou v\u011btev datab\u00e1zov\u00e9ho syst\u00e9mu MySQL 8.4 a zve\u0159ejnila opravn\u00fdch aktualizaci MySQL 8.0.37. Verze MySQL Community Server 8.4.0 byly p\u0159ipraveny pro v\u0161echny hlavn\u00ed distribuce Linuxu, FreeBSD, macOS a Windows. Verze 8.4.0 spad\u00e1 do v\u011btve s dlouhodobou podporou (LTS), kter\u00e1 se vyd\u00e1v\u00e1 ka\u017ed\u00e9 dva roky a je podporov\u00e1na po dobu 5 let (plus je mo\u017en\u00e9 z\u00edskat dal\u0161\u00edch 3 roky roz\u0161\u00ed\u0159en\u00e9 podpory).         <\/p>\n<p>MySQL 8.4.0 je \u010dtvrt\u00e9 vyd\u00e1n\u00ed vyvinut\u00e9 podle nov\u00e9 modelu vyd\u00e1n\u00ed, kter\u00fd zahrnuje dva typy v\u011btv\u00ed MySQL \u2013 \u201eInnovation\u201c a \u201eLTS\u201c. V\u011btve Innovation, mezi kter\u00e9 pat\u0159\u00ed MySQL 8.1, 8.2 a 8.3, jsou doporu\u010deny pro ty, kte\u0159\u00ed cht\u011bj\u00ed d\u0159\u00edve p\u0159istupovat k nov\u00fdm funkc\u00edm. Tyto v\u011btve jsou publikov\u00e1ny ka\u017ed\u00e9 3 m\u011bs\u00edce a jsou podporov\u00e1ny pouze do doby vyd\u00e1n\u00ed dal\u0161\u00edho v\u00fdznamn\u00e9ho vyd\u00e1n\u00ed (nap\u0159\u00edklad po vzniku v\u011btve 8.4 byla podpora v\u011btve 8.3 ukon\u010dena). V\u011btve LTS jsou doporu\u010deny pro nasazen\u00ed, kter\u00e1 pot\u0159ebuj\u00ed p\u0159edv\u00eddatelnost a dlouhodobou stabilitu chov\u00e1n\u00ed. N\u00e1sleduj\u00edc\u00ed po v\u011btvi LTS vznikne nov\u00e1 v\u011btve Innovation \u2013 MySQL 9.0.        <\/p>\n<p>Hlavn\u00ed zm\u011bny v MySQL 8.4:  <\/p>\n<ul>\n<li class=\"l\"> Do optimaliz\u00e1toru byla p\u0159id\u00e1na podpora automatick\u00e9 aktualizace histogram\u016f, nez\u00e1visle na prov\u00e1d\u011bn\u00ed operace \u201eANALYZE TABLE\u201c pro rodi\u010dovskou tabulku. Automatick\u00e9 aktualizace se aktivuj\u00ed pomoc\u00ed zad\u00e1n\u00ed v\u00fdrazu \u201eAUTO UPDATE\u201c p\u0159i prov\u00e1d\u011bn\u00ed operace \u201eANALYZE TABLE\u201c, a lze je deaktivovat pomoc\u00ed v\u00fdrazu \u201eMANUAL UPDATE\u201c, kter\u00fd se pou\u017e\u00edv\u00e1 jako v\u00fdchoz\u00ed.\n<li class=\"l\"> Byly p\u0159id\u00e1ny mo\u017enosti \u201e--keyring-migration-from-component\u201c, \u201e--keyring-migration-source\u201c a \u201e--keyring-migration-destination\u201c pro migraci z komponentu keyring do pluginu keyring.\n<li class=\"l\"> Bylo p\u0159id\u00e1no nov\u00e9 opr\u00e1vn\u011bn\u00ed FLUSH_PRIVILEGES, kter\u00e9 na rozd\u00edl od d\u0159\u00edve dostupn\u00e9ho opr\u00e1vn\u011bn\u00ed RELOAD poskytuje u\u017eivateli pr\u00e1va pouze k proveden\u00ed operace \u201eFLUSH PRIVILEGES\u201c.\n<li class=\"l\"> Bylo p\u0159id\u00e1no nov\u00e9 opr\u00e1vn\u011bn\u00ed OPTIMIZE_LOCAL_TABLE, kter\u00e9 u\u017eivateli umo\u017e\u0148uje prov\u00e1d\u011bt operace \u201eOPTIMIZE LOCAL TABLE\u201c a \u201eOPTIMIZE NO_WRITE_TO_BINLOG TABLE\u201c.\n<li class=\"l\"> Byly zm\u011bn\u011bny v\u00fdchoz\u00ed hodnoty syst\u00e9mov\u00fdch prom\u011bnn\u00fdch group_replication_consistency a group_replication_exit_state_action. Prom\u011bnn\u00e1 group_replication_consistency je nyn\u00ed nastavena na hodnotu BEFORE_ON_PRIMARY_FAILOVER m\u00edsto EVENTUAL, zat\u00edmco prom\u011bnn\u00e1 group_replication_exit_state_action je nastavena na hodnotu OFFLINE_MODE m\u00edsto READ_ONLY.\n<li class=\"l\"> Ve verz\u00edch dod\u00e1van\u00fdch se zabudovanou knihovnou OpenSSL byla aktivov\u00e1na nov\u00e1 verze OpenSSL 3.0.13.\n<li class=\"l\"> P\u0159\u00edm\u00e9 aktualizace z MySQL 5.7 na MySQL 8.4 byly ukon\u010deny. P\u0159echod z MySQL 5.7 nyn\u00ed vy\u017eaduje nejprve p\u0159echod na v\u011btev 8.0, a teprve pot\u00e9 aktualizaci na verzi 8.4.\n<li class=\"l\"> Byly zm\u011bn\u011bny v\u00fdchoz\u00ed hodnoty n\u00e1sleduj\u00edc\u00edch nastaven\u00ed InnoDB: innodb_adaptive_hash_index, innodb_buffer_pool_in_core_file, innodb_buffer_pool_instances, innodb_change_buffering, innodb_doublewrite_files, innodb_doublewrite_pages, innodb_flush_method, innodb_io_capacity, innodb_io_capacity_max, innodb_log_buffer_size, innodb_numa_interleave, innodb_page_cleaners, innodb_parallel_read_threads, innodb_purge_threads, innodb_read_io_threads, innodb_use_fdatasync, temptable_max_ram, temptable_max_mmap a temptable_use_mmap.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pro vytv\u00e1\u0159en\u00ed bal\u00ed\u010dk\u016f pro distribuce Fedora 40 a Ubuntu 24.04.\n<li class=\"l\"> Serverov\u00fd plugin mysql_native_password, zaji\u0161\u0165uj\u00edc\u00ed autentizaci pomoc\u00ed hesel, je ve v\u00fdchoz\u00edm nastaven\u00ed deaktivov\u00e1n a pova\u017eov\u00e1n za zastaral\u00fd. Doporu\u010duje se p\u0159ej\u00edt na plugin caching_sha2_password, kter\u00fd pro hashov\u00e1n\u00ed pou\u017e\u00edv\u00e1 algoritmus SHA2 m\u00edsto SHA1. Pro vr\u00e1cen\u00ed podpory mysql_native_password lze pou\u017e\u00edt mo\u017enost \u201e--mysql-native-password=ON\u201c nebo nastaven\u00ed \u201emysql_native_password=ON\u201c.\n<li class=\"l\"> Podpora nezabezpe\u010den\u00fdch protokol\u016f a \u0161ifrovac\u00edch algoritm\u016f byla ukon\u010dena. Z\u016fstaly pouze protokoly TLS v1.2 a TLSv1.3, algoritmy, kter\u00e9 zaji\u0161\u0165uj\u00ed p\u0159\u00edmou tajnost (forward secrecy), \u0161ifry a certifik\u00e1ty s SHA2, a algoritmy AES v re\u017eimu GCM nebo AEAD.\n<li class=\"l\"> Byly odstran\u011bny SQL p\u0159\u00edkazy souvisej\u00edc\u00ed s replikac\u00ed, kter\u00e9 byly d\u0159\u00edve ozna\u010deny jako zastaral\u00e9 kv\u016fli nep\u0159esn\u00e9 terminologii: START SLAVE (m\u011blo by b\u00fdt START REPLICA); STOP SLAVE (m\u011blo by b\u00fdt STOP REPLICA); SHOW SLAVE STATUS (m\u011blo by b\u00fdt SHOW REPLICA STATUS); SHOW SLAVE HOSTS (SHOW REPLICAS); RESET SLAVE (RESET REPLICA); CHANGE MASTER TO (CHANGE REPLICATION SOURCE TO); RESET MASTER (RESET BINARY LOGS AND GTIDS); SHOW MASTER STATUS (SHOW BINARY LOG STATUS); PURGE MASTER LOGS (PURGE BINARY LOGS); SHOW MASTER LOGS (SHOW BINARY LOGS).\n<li class=\"l\"> Byly odstran\u011bny d\u0159\u00edve vyhl\u00e1\u0161en\u00e9 zastaral\u00e9 mo\u017enosti, kter\u00e9 se pou\u017e\u00edvaly ve v\u00fdrazech 'CHANGE REPLICATION SOURCE TO' a 'START REPLICA', a kter\u00e9 obsahovaly slovo 'master', je\u017e bylo nahrazeno slovem 'source': SOURCE_AUTO_POSITION (pou\u017e\u00edvejte SOURCE_AUTO_POSITION), SOURCE_HOST (pou\u017e\u00edvejte SOURCE_HOST), SOURCE_BIND (pou\u017e\u00edvejte SOURCE_BIND), SOURCE_USER (SOURCE_USER), SOURCE_PASSWORD (SOURCE_PASSWORD), SOURCE_PORT (SOURCE_PORT), SOURCE_CONNECT_RETRY (SOURCE_CONNECT_RETRY), SOURCE_RETRY_COUNT (SOURCE_RETRY_COUNT), SOURCE_DELAY (SOURCE_DELAY), SOURCE_SSL (SOURCE_SSL), SOURCE_SSL_CA (SOURCE_SSL_CA), SOURCE_SSL_CAPATH (SOURCE_SSL_CAPATH), SOURCE_SSL_CIPHER (SOURCE_SSL_CIPHER), SOURCE_SSL_CRL (SOURCE_SSL_CRL), SOURCE_SSL_CRLPATH (SOURCE_SSL_CRLPATH), SOURCE_SSL_KEY (SOURCE_SSL_KEY), SOURCE_SSL_VERIFY_SERVER_CERT (SOURCE_SSL_VERIFY_SERVER_CERT), SOURCE_TLS_VERSION (SOURCE_TLS_VERSION), SOURCE_TLS_CIPHERSUITES (SOURCE_TLS_CIPHERSUITES), SOURCE_SSL_CERT (SOURCE_SSL_CERT), SOURCE_PUBLIC_KEY_PATH (SOURCE_PUBLIC_KEY_PATH), GET_SOURCE_PUBLIC_KEY (GET_SOURCE_PUBLIC_KEY), SOURCE_HEARTBEAT_PERIOD (SOURCE_HEARTBEAT_PERIOD), SOURCE_COMPRESSION_ALGORITHMS (SOURCE_COMPRESSION_ALGORITHMS), SOURCE_ZSTD_COMPRESSION_LEVEL (SOURCE_ZSTD_COMPRESSION_LEVEL), SOURCE_LOG_FILE (SOURCE_LOG_FILE), SOURCE_LOG_POS (SOURCE_LOG_POS).\n<li class=\"l\"> Byly odstran\u011bny syst\u00e9mov\u00e9 prom\u011bnn\u00e9, ve kter\u00fdch se pou\u017e\u00edvala slova 'master' a 'slave': Com_replica_start (pou\u017e\u00edvejte Com_replica_start); Com_replica_stop (Com_replica_stop); Com_show_replica_status (Com_show_replica_status); Com_show_replicas (Com_show_replicas); Com_show_binary_log_status (Com_show_binary_log_status); a Com_change_replication_source (Com_change_replication_source).\n<li class=\"l\"> Byla ozna\u010dena za zastaralou syst\u00e9mov\u00e1 prom\u011bnn\u00e1 group_replication_allow_local_lower_version_join. Byly odstran\u011bny d\u0159\u00edve vyhl\u00e1\u0161en\u00e9 zastaral\u00e9 mo\u017enosti '--no-dd-upgrade', '--old', '--new', '--language', '--<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/ssl-sertifikat\/\"   title=\"ssl\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2285\">ssl<\/a>', '--admin-ssl' a prom\u011bnn\u00e9 binlog_transaction_dependency_tracking, group_replication_recovery_complete_at, avoid_temporal_upgrade, show_old_temporals a default_authentication_plugin.\n<li class=\"l\"> Byla odstran\u011bna nepou\u017e\u00edvan\u00e1 tabulka INFORMATION_SCHEMA.TABLESPACES.\n<li class=\"l\"> Byla ukon\u010dena podpora pou\u017e\u00edv\u00e1n\u00ed hodnoty LOW_PRIORITY spolu s v\u00fdrazem 'LOCK TABLES \u2026 WRITE'.\n<li class=\"l\"> Byla ukon\u010dena podpora pou\u017eit\u00ed modifik\u00e1toru AUTO_INCREMENT spolu s typy FLOAT a DOUBLE.\n<li class=\"l\"> Byla odstran\u011bna utilita mysql_ssl_rsa_setup \u2014 p\u0159i sestaven\u00ed s OpenSSL. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a> MySQL m\u016f\u017ee automaticky generovat chyb\u011bj\u00edc\u00ed SSL a RSA soubory p\u0159i spu\u0161t\u011bn\u00ed.\n<li class=\"l\"> Byla odstran\u011bna utilita mysql_upgrade, kter\u00e1 se nepou\u017e\u00edv\u00e1 s verz\u00ed MySQL 8.0.16.\n<li class=\"l\"> Byly odstran\u011bny utility mysqlpump, lz4_decompress a zlib_decompress, m\u00edsto nich\u017e byste m\u011bli pou\u017e\u00edvat utilitu mysqldump nebo p\u0159\u00edkazy dump interaktivn\u00ed konzole.\n<li class=\"l\"> Byly odstran\u011bny pluginy: authentication_fido, authentication_fido_client (pou\u017e\u00edvejte authentication_webauthn); keyring_file (pou\u017e\u00edvejte component_keyring_file); keyring_encrypted_file (pou\u017e\u00edvejte component_keyring_encrypted_file); keyring_oci (pou\u017e\u00edvejte component_keyring_oci).\n<li class=\"l\"> Byla ukon\u010dena podpora v\u00fdrazu ENGINE spolu s r\u016fzn\u00fdmi variantami 'DROP TABLESPACE' a 'ALTER TABLESPACE'.\n<li class=\"l\"> Byla odstran\u011bna privilegium 'SET_USER_ID', kterou ji\u017e nelze uv\u00e1d\u011bt ve v\u00fdrazech GRANT.\n<li class=\"l\"> Vr\u00e1ceny byly funkce API: mysql_kill(), mysql_list_fields(), mysql_list_processes(), mysql_refresh(), mysql_reload(), mysql_shutdown() a mysql_ssl_set(), z nich\u017e n\u011bkter\u00e9 byly p\u0159epracov\u00e1ny pomoc\u00ed funkce mysql_real_query(). Tyto funkce byly odstran\u011bny ve v\u011btvi MySQL 8.3, ale byly obnoveny pro podporu v r\u00e1mci LTS v\u011btve MySQL 8.4.\n<li class=\"l\"> Bylo odstran\u011bno 26 zranitelnost\u00ed, kter\u00e9 lze vzd\u00e1len\u011b zneu\u017e\u00edt. Nejz\u00e1va\u017en\u011bj\u0161\u00ed probl\u00e9m m\u00e1 \u00farove\u0148 nebezpe\u010d\u00ed 6.5 a souvis\u00ed se zranitelnost\u00ed v openSSL. M\u00e9n\u011b nebezpe\u010dn\u00e9 zranitelnosti se t\u00fdkaj\u00ed optimalizace, InnoDB, Thread Pooling, Group Replication Plugin, Audit Plugin, DML, mysqldump.         <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61098\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u0432\u0435\u0442\u043a\u0443 \u0421\u0423\u0411\u0414 MySQL 8.4 \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 MySQL 8.0.37. \u0421\u0431\u043e\u0440\u043a\u0438 MySQL Community Server 8.4.0 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u043e\u0432 Linux, FreeBSD, macOS \u0438 Windows. \u0412\u044b\u043f\u0443\u0441\u043a 8.4.0 \u043e\u0442\u043d\u0435\u0441\u0451\u043d \u043a \u0432\u0435\u0442\u043a\u0430\u043c \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 (LTS), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u044e\u0442\u0441\u044f \u0440\u0430\u0437 \u0432 \u0434\u0432\u0430 \u0433\u043e\u0434\u0430 \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0442\u0441\u044f 5 \u043b\u0435\u0442 (\u043f\u043b\u044e\u0441 \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0435\u0449\u0451 3 \u0433\u043e\u0434\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-115474","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u0432\u0435\u0442\u043a\u0443 \u0421\u0423\u0411\u0414 MySQL 8.4 \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 MySQL 8.0.37.\" 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