From 644f777e16f7ada6ac607e69077e30c096875de0 Mon Sep 17 00:00:00 2001 From: Swfuse Date: Sat, 20 Aug 2022 14:10:53 +0300 Subject: [PATCH] update toc --- interview.md | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/interview.md b/interview.md index 7ee810e..28b6973 100644 --- a/interview.md +++ b/interview.md @@ -56,6 +56,7 @@ - [Где в системе можно посмотреть сводку по текущему потреблению памяти?](#%D0%B3%D0%B4%D0%B5-%D0%B2-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B5-%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE-%D0%BF%D0%BE%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C-%D1%81%D0%B2%D0%BE%D0%B4%D0%BA%D1%83-%D0%BF%D0%BE-%D1%82%D0%B5%D0%BA%D1%83%D1%89%D0%B5%D0%BC%D1%83-%D0%BF%D0%BE%D1%82%D1%80%D0%B5%D0%B1%D0%BB%D0%B5%D0%BD%D0%B8%D1%8E-%D0%BF%D0%B0%D0%BC%D1%8F%D1%82%D0%B8) - [Как работает оом киллер и для чего нужен? Out of memory, oom](#%D0%BA%D0%B0%D0%BA-%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0%D0%B5%D1%82-%D0%BE%D0%BE%D0%BC-%D0%BA%D0%B8%D0%BB%D0%BB%D0%B5%D1%80-%D0%B8-%D0%B4%D0%BB%D1%8F-%D1%87%D0%B5%D0%B3%D0%BE-%D0%BD%D1%83%D0%B6%D0%B5%D0%BD-out-of-memory-oom) - [Как процессы в системе взаимодействуют между собой?](#%D0%BA%D0%B0%D0%BA-%D0%BF%D1%80%D0%BE%D1%86%D0%B5%D1%81%D1%81%D1%8B-%D0%B2-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B5-%D0%B2%D0%B7%D0%B0%D0%B8%D0%BC%D0%BE%D0%B4%D0%B5%D0%B9%D1%81%D1%82%D0%B2%D1%83%D1%8E%D1%82-%D0%BC%D0%B5%D0%B6%D0%B4%D1%83-%D1%81%D0%BE%D0%B1%D0%BE%D0%B9) + - [a=5; true | { true && a=10; } чему будет равно a?](#a5-true---true--a10--%D1%87%D0%B5%D0%BC%D1%83-%D0%B1%D1%83%D0%B4%D0%B5%D1%82-%D1%80%D0%B0%D0%B2%D0%BD%D0%BE-a) - [Что такое QEMU](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-qemu) - [Что такое KVM гипервизор](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-kvm-%D0%B3%D0%B8%D0%BF%D0%B5%D1%80%D0%B2%D0%B8%D0%B7%D0%BE%D1%80) - [Что такое qemu-kvm?](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-qemu-kvm) @@ -90,15 +91,10 @@ - [Попытка запуска исполняемого файла завершается ошибкой no such file or directory. Почему?](#%D0%BF%D0%BE%D0%BF%D1%8B%D1%82%D0%BA%D0%B0-%D0%B7%D0%B0%D0%BF%D1%83%D1%81%D0%BA%D0%B0-%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D0%BD%D1%8F%D0%B5%D0%BC%D0%BE%D0%B3%D0%BE-%D1%84%D0%B0%D0%B9%D0%BB%D0%B0-%D0%B7%D0%B0%D0%B2%D0%B5%D1%80%D1%88%D0%B0%D0%B5%D1%82%D1%81%D1%8F-%D0%BE%D1%88%D0%B8%D0%B1%D0%BA%D0%BE%D0%B9-no-such-file-or-directory-%D0%BF%D0%BE%D1%87%D0%B5%D0%BC%D1%83) - [Программа сообщает о том, что не может найти свой конфигурационный файл. Каким образом можно узнать, где она пытается его найти?](#%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0-%D1%81%D0%BE%D0%BE%D0%B1%D1%89%D0%B0%D0%B5%D1%82-%D0%BE-%D1%82%D0%BE%D0%BC-%D1%87%D1%82%D0%BE-%D0%BD%D0%B5-%D0%BC%D0%BE%D0%B6%D0%B5%D1%82-%D0%BD%D0%B0%D0%B9%D1%82%D0%B8-%D1%81%D0%B2%D0%BE%D0%B9-%D0%BA%D0%BE%D0%BD%D1%84%D0%B8%D0%B3%D1%83%D1%80%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9-%D1%84%D0%B0%D0%B9%D0%BB-%D0%BA%D0%B0%D0%BA%D0%B8%D0%BC-%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%BE%D0%BC-%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE-%D1%83%D0%B7%D0%BD%D0%B0%D1%82%D1%8C-%D0%B3%D0%B4%D0%B5-%D0%BE%D0%BD%D0%B0-%D0%BF%D1%8B%D1%82%D0%B0%D0%B5%D1%82%D1%81%D1%8F-%D0%B5%D0%B3%D0%BE-%D0%BD%D0%B0%D0%B9%D1%82%D0%B8) - [Что будешь делать если у команды chmod убрали права на исполнение? chmod -x chmod](#%D1%87%D1%82%D0%BE-%D0%B1%D1%83%D0%B4%D0%B5%D1%88%D1%8C-%D0%B4%D0%B5%D0%BB%D0%B0%D1%82%D1%8C-%D0%B5%D1%81%D0%BB%D0%B8-%D1%83-%D0%BA%D0%BE%D0%BC%D0%B0%D0%BD%D0%B4%D1%8B-chmod-%D1%83%D0%B1%D1%80%D0%B0%D0%BB%D0%B8-%D0%BF%D1%80%D0%B0%D0%B2%D0%B0-%D0%BD%D0%B0-%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5-chmod--x-chmod) - - [setfacl -m u::rwx,g::rx,o::x /usr/bin/chmodhmod](#setfacl--m-urwxgrxox-usrbinchmodhmod) - - [/usr/lib64/ld-linux-x86-64.so.2 /usr/bin/chmod +x /usr/bin/chmodhmod](#usrlib64ld-linux-x86-64so2-usrbinchmod-x-usrbinchmodhmod) - - [cp --attributes-only /usr/bin/ls ./new_chmodhmod](#cp---attributes-only-usrbinls-new_chmodhmod) - - [cat /usr/bin/chmod > ./new_chmodhmod](#cat-usrbinchmod--new_chmodhmod) - - [/new_chmod +x /usr/bin/chmodhmod](#new_chmod-x-usrbinchmodhmod) - - [install -m 755 /usr/bin/chmod ./new_chmodhmod](#install--m-755-usrbinchmod-new_chmodhmod) - [База сейчас сидит и упирается в диск. И с ней ничего не сделать — больше сервер никто покупать не будет. Как сделать так, чтобы оно работало быстрее прямо сейчас?](#%D0%B1%D0%B0%D0%B7%D0%B0-%D1%81%D0%B5%D0%B9%D1%87%D0%B0%D1%81-%D1%81%D0%B8%D0%B4%D0%B8%D1%82-%D0%B8-%D1%83%D0%BF%D0%B8%D1%80%D0%B0%D0%B5%D1%82%D1%81%D1%8F-%D0%B2-%D0%B4%D0%B8%D1%81%D0%BA-%D0%B8-%D1%81-%D0%BD%D0%B5%D0%B9-%D0%BD%D0%B8%D1%87%D0%B5%D0%B3%D0%BE-%D0%BD%D0%B5-%D1%81%D0%B4%D0%B5%D0%BB%D0%B0%D1%82%D1%8C--%D0%B1%D0%BE%D0%BB%D1%8C%D1%88%D0%B5-%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80-%D0%BD%D0%B8%D0%BA%D1%82%D0%BE-%D0%BF%D0%BE%D0%BA%D1%83%D0%BF%D0%B0%D1%82%D1%8C-%D0%BD%D0%B5-%D0%B1%D1%83%D0%B4%D0%B5%D1%82-%D0%BA%D0%B0%D0%BA-%D1%81%D0%B4%D0%B5%D0%BB%D0%B0%D1%82%D1%8C-%D1%82%D0%B0%D0%BA-%D1%87%D1%82%D0%BE%D0%B1%D1%8B-%D0%BE%D0%BD%D0%BE-%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0%D0%BB%D0%BE-%D0%B1%D1%8B%D1%81%D1%82%D1%80%D0%B5%D0%B5-%D0%BF%D1%80%D1%8F%D0%BC%D0%BE-%D1%81%D0%B5%D0%B9%D1%87%D0%B0%D1%81) - [Почему доступной available памяти сейчас 2919, если свободной free памяти 843?](#%D0%BF%D0%BE%D1%87%D0%B5%D0%BC%D1%83-%D0%B4%D0%BE%D1%81%D1%82%D1%83%D0%BF%D0%BD%D0%BE%D0%B9-available-%D0%BF%D0%B0%D0%BC%D1%8F%D1%82%D0%B8-%D1%81%D0%B5%D0%B9%D1%87%D0%B0%D1%81-2919-%D0%B5%D1%81%D0%BB%D0%B8-%D1%81%D0%B2%D0%BE%D0%B1%D0%BE%D0%B4%D0%BD%D0%BE%D0%B9-free-%D0%BF%D0%B0%D0%BC%D1%8F%D1%82%D0%B8-843) - [Что такое разделяемая память?](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-%D1%80%D0%B0%D0%B7%D0%B4%D0%B5%D0%BB%D1%8F%D0%B5%D0%BC%D0%B0%D1%8F-%D0%BF%D0%B0%D0%BC%D1%8F%D1%82%D1%8C) + - [Сервер под нагрузкой тормозит - тяжелые запросы к кассандре и ELK отрабатывают сильно медленнее чем раньше и чем другие аналогичные сервера.](#%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80-%D0%BF%D0%BE%D0%B4-%D0%BD%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%BE%D0%B9-%D1%82%D0%BE%D1%80%D0%BC%D0%BE%D0%B7%D0%B8%D1%82---%D1%82%D1%8F%D0%B6%D0%B5%D0%BB%D1%8B%D0%B5-%D0%B7%D0%B0%D0%BF%D1%80%D0%BE%D1%81%D1%8B-%D0%BA-%D0%BA%D0%B0%D1%81%D1%81%D0%B0%D0%BD%D0%B4%D1%80%D0%B5-%D0%B8-elk-%D0%BE%D1%82%D1%80%D0%B0%D0%B1%D0%B0%D1%82%D1%8B%D0%B2%D0%B0%D1%8E%D1%82-%D1%81%D0%B8%D0%BB%D1%8C%D0%BD%D0%BE-%D0%BC%D0%B5%D0%B4%D0%BB%D0%B5%D0%BD%D0%BD%D0%B5%D0%B5-%D1%87%D0%B5%D0%BC-%D1%80%D0%B0%D0%BD%D1%8C%D1%88%D0%B5-%D0%B8-%D1%87%D0%B5%D0%BC-%D0%B4%D1%80%D1%83%D0%B3%D0%B8%D0%B5-%D0%B0%D0%BD%D0%B0%D0%BB%D0%BE%D0%B3%D0%B8%D1%87%D0%BD%D1%8B%D0%B5-%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D0%B0) - [Docker контейнеры](#docker-%D0%BA%D0%BE%D0%BD%D1%82%D0%B5%D0%B9%D0%BD%D0%B5%D1%80%D1%8B) - [Что такое docker и какие инструменты liunx лежат в основе? Для чего он используется?](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-docker-%D0%B8-%D0%BA%D0%B0%D0%BA%D0%B8%D0%B5-%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BC%D0%B5%D0%BD%D1%82%D1%8B-liunx-%D0%BB%D0%B5%D0%B6%D0%B0%D1%82-%D0%B2-%D0%BE%D1%81%D0%BD%D0%BE%D0%B2%D0%B5-%D0%B4%D0%BB%D1%8F-%D1%87%D0%B5%D0%B3%D0%BE-%D0%BE%D0%BD-%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D1%8C%D0%B7%D1%83%D0%B5%D1%82%D1%81%D1%8F) - [Что такое контейнеры, образы? В чём заключаются концепции их использования?](#%D1%87%D1%82%D0%BE-%D1%82%D0%B0%D0%BA%D0%BE%D0%B5-%D0%BA%D0%BE%D0%BD%D1%82%D0%B5%D0%B9%D0%BD%D0%B5%D1%80%D1%8B-%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D1%8B-%D0%B2-%D1%87%D1%91%D0%BC-%D0%B7%D0%B0%D0%BA%D0%BB%D1%8E%D1%87%D0%B0%D1%8E%D1%82%D1%81%D1%8F-%D0%BA%D0%BE%D0%BD%D1%86%D0%B5%D0%BF%D1%86%D0%B8%D0%B8-%D0%B8%D1%85-%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D1%8C%D0%B7%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F)