July 2012
Intermediate to advanced
712 pages
27h 27m
Polish
book
Wysoko wydajne MySQL. Optymalizacja, archiwizacja, replikacja. Wydanie II
by Baron Schwartz, Peter Zaitsev, Vadim Tkachenko, Jeremy D. Zawodny, Arjen Lentz, Derek J. Balling
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Dodatek D. Usuwanie błędów w blokadach
Usuwanie błędów w każdym systemie stosującym blokady w celu kontroli dostępu do współdzielonych zasobów może być trudne, kiedy pojawią się konflikty związane z tymi blokadami. Programista może podjąć próbę dodania kolumny do tabeli lub wykonać zapytania, gdy nagle okazuje się, że zapytania są zablokowane, ponieważ inny element nałożył blokadę na tabele lub rekordy, których programista próbuje użyć. W tym dodatku zostaną przedstawione rozwiązania takich sytuacji w MySQL. Najczęściej trzeba znaleźć zapytanie blokujące, ale czasami trzeba będzie określić, co jest blokowane, aby wiedzieć, który proces zakończyć. W dodatku zostaną omówione sposoby osiągnięcia obu celów.
Blokada oczekiwania na poziomie serwera
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.