Возможно, стоит пояснить разницу между синхронизацией из thread/process-safe и синхронизацией с помощью Lock🤔
Наша задача — заставить разные процессы и потоки обращаться к базе данных (или любым другим ресурсам) последовательно. Чтобы не случилось так называемого race condition, то есть состояние гонки. Это когда разные потоки или процессы пытаются одновременно что-то сделать с одним и тем же ресурсом.
В этом случае нам нужна какая-то логика ограничения. Пока один процесс не завершил своё действие, другие не могут получить доступ к ресурсу.
Так вот, thread-safe и process-safe означает что отдельно взятые операции записи в БД гарантированно будут последовательны. Запросы из разных процессов или потоков выстроятся в очередь и не будут мешать друг другу. Лучше всего когда этот блок реализован на уровне БД в виде атомарных операций или ещё как-то.
Но зачем нам тогда еще дополнительный Lock?
Этот способ синхронизации используется когда процесс никак не укладывается в одно действие и должен сделать множество операций прежде чем дать доступ следующему. В этом случае процесс ставит некий глобальный Lock на ресурс и никто другой, даже получив законное право на доступ, не может ничего сделать. Все ждут пока этот Lock не будет снят.
Это решается на уровне приложения и правильность реализации полностью в вашей ответственности. Например, если забыли разблокировать или сделали перекрёстный Lock (Deadlock как на картинке), то всё зависнет в бесконечном ожидании.
#basic
#Christian neighborhoods in #Damascus protesting in the middle of the night after targeting the Christians in #Hama by the Islamist gangs calling themselves a government
@TheAlawiteEcho
The Syrian barbaric islamist gangs are now raiding and vandalizing the #Christian city of Skailbiyah in #Hama after they attacked every single non-Sunni sect and religion https://t.co/GX12QdO06L
View tweet
#Damascus : Ismaili Man Killed by Gunmen, Amid Rising Attacks Targeting the Ismaili Community
Madin Ismail Zino, 56, originally from the city of Salamiyah in W. #Hama countryside, has died from critical gunshot wounds he sustained a week ago in e. #Domar area of Damascus. He passed away today April 10, 2026.
Since the start of this year, there has been a significant rise in attacks targeting members of the Ismaili community, including killings and kidnappings, a stark escalation compared to 2025, when incidents against them were largely confined to theft and property damage.
Incidents Targeting the Ismaili Community in 2026:
Haider Haider from Salamiyah killed in Homs on February 18, 2026,
https://x.com/syjusticearc/status/2024161104721859030
Maad Nasser, 66 years old, killed in front of his house in Salamiyah on February 10, 2026
https://x.com/syjusticearc/status/2021267785347641793
Ismail Mustafa Safar from Salamiyah countryside was found dead in
Homs countryside, March 14, 2026
https://x.com/syjusticearc/status/2032824907457761443
Ali Mustafa Al-Eizouqi, killed near Salamiyah on January 22, 2026
https://x.com/syjusticearc/status/2014970181064233072
Joseph Milad Zeino, young man in his twenties, kidnapped from a local store in Domar near Damascus on March 12, 2026.
Kidnappers are demanding a huge ransom
https://x.com/syjusticearc/status/2033538625447587862
Protest in Salamiyah denouncing killings,, and the lack of security in the city, on February 13, 2026
https://x.com/syjusticearc/status/2022310059288547639
#WesternSyria | W. #Hama: Two Alawite men killed while working on their land by Al-Jolani’s terrorist militias
“Muhammad Hafez Al-Ali” and “Yusuf Muhammad Al-Ali” were killed yesterday, April 2, 2026, by an armed terrorist group affiliated with Al-Jolani’s militias, while working on their land located north of the village of #alBayad, in the municipality of Umm Al-Tuyur, in the W. #Hama countryside.
Happening now, an arrest campaign in #Misyaf and Western #Hama countryside by #Jolani forces.
Tens of #Alawite young men have been arrested arbitrarily, following the wide peaceful Alawite protests.
View tweet
Systematic Attacks on Religious Minorities' Shrines and Places of Worship in Syria
W #Hama: An extremist terrorist group has destroyed a religious shrine belonging to the #Alawite community, known as “Sheikh Muhammad al-Maghribi,” located in the village of #Asila in Masyaf, in the Ghab Plain in the rural countryside of Hama Governorate, yesterday 21 March 2026.
#Alawite: It is worth noting that attacks on Alawite religious shrines began following the fall of the regime, reaching their peak during the #massacres carried out against Alawites on the Syrian coast by al-Jolani’s forces. Incidents of assault on Alawite shrines have continued repeatedly, to the point where barely a month passes without an incident involving the bombing, desecration, or burning of shrines across various Alawite regions.
#Druze: Similarly, shrines belonging to the Druze community were subjected to comparable attacks, including vandalism, arson, and bombings, during the massacres of July 2025 in #Suwayda, carried out by the forces of al-Jolani’s terrorist regime.
#Christians: A church in #Damascus was also bombed in June 2025, in addition to attacks on churches in #Homs and the rural Homs region in the #alQusayr area. The massacres that took place in As-#Suwayda likewise saw the burning and destruction of three churches.