The Log: What every software engineer should know about real-time data's unifying abstraction I joined LinkedIn about six years ago at a particularly interesting time. We were just beginning to run up against the limits of our monolithic, centralized database and needed to start the transition to a portfolio of specialized distributed systems. This has been an interesting experience: we built, dep
-1- The Log-Structured Merge-Tree (LSM-Tree) Patrick O'Neil1, Edward Cheng2 Dieter Gawlick3, Elizabeth O'Neil1 To be published: Acta Informatica ABSTRACT. High-performance transaction system applications typically insert rows in a History table to provide an activity trace; at the same time the transaction system generates log records for purposes of system recovery. Both types of generated inform
Don’t just hack it together NoSQL… Big Data… Scalability… CAP Theorem… Eventual Consistency… Sharding… Nice buzzwords, but how does the stuff actually work? As software engineers, we need to build applications that are reliable, scalable and maintainable in the long run. We need to understand the range of available tools and their trade-offs. For that, we have to dig deeper than buzzwords. This bo
// https://github.com/nginx/nginx/blob/9842cff/src/http/ngx_http_request.h#L120-L126 /* * HTTP does not define the code for the case when a client closed * the connection while we are processing its request so we introduce * own code to log such situation when a client has closed the connection * before we even try to send the HTTP header to it */ #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499 HTTP標準で
Furl can do keepalive connection by passing connection pool object to connection_pool option, By default, Furl::ConnectionCache is used. But Furl::ConnectionCache can keep only one connection at once. To do keepalive more one connections. you need to make a connection pool object like this example. my $conncache = Cache::LRU->new(size => 10); my $furl = Furl->new( connection_pool => Plack::Util::i
名前も看板もないラーメン屋さんをご存知でしょうか？ 麺や高倉二条の系列店で人気のお店です。 知る人ぞ知るお店といった感じで本当に看板もありません。 お店の外観はこちら 知ってないとわからない外観です。 試しに行ってみた！！ 入り口もこんな感じです。 左の壁にあるランプが点灯していると営業しています。 中へ入ると。。。 ラーメン屋と思えないオシャレな空間 今回は二人でランチに来たので、こちらを注文してみました。 席に案内されるとカウンターの上には何もなく、座った席の机の引き出しの中にいろいろ薬味が収納されていました。 ついに登場！！ しばらくするとつけ麺が出てきました！ すがりとよく似たスタイルのつけ麺です。 STAUBのスープ皿に、ロイヤルコペンハーゲンの麺の器というおしゃれっぷり。 味は麺はさっぱり系だけどスープがすごく濃厚でおいしかったです！ 店内のインテリアもおしゃれで、ラーメン屋特
The now–finalized HTTP/2 specification has rightfully garnered a lot of interest from the web performance community. The new protocol is aimed at addressing common network performance issues with the aging HTTP/1.x protocol, whilst preserving the existing semantics. We began a small-scale rollout for static assets earlier this year. After building confidence in our new infrastructure, we began tra
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
