modify

db/init.sh

@@ -16,5 +16,7 @@ if [ ! -f "$DB_DIR/isucon8q-initial-dataset.sql.gz" ]; then
 fi
 
 mysql -uisucon torb -e 'ALTER TABLE reservations DROP KEY event_id_and_sheet_id_idx'
+mysql -uisucon torb -e 'ALTER TABLE reservations DROP KEY user_id_idx'
 gzip -dc "$DB_DIR/isucon8q-initial-dataset.sql.gz" | mysql -uisucon torb
 mysql -uisucon torb -e 'ALTER TABLE reservations ADD KEY event_id_and_sheet_id_idx (event_id, sheet_id)'
+mysql -uisucon torb -e 'ALTER TABLE reservations ADD KEY user_id_idx (user_id)'

db/schema.sql

@@ -29,7 +29,8 @@ CREATE TABLE IF NOT EXISTS reservations (
     user_id     INTEGER UNSIGNED NOT NULL,
     reserved_at DATETIME(6)      NOT NULL,
     canceled_at DATETIME(6)      DEFAULT NULL,
-    KEY event_id_and_sheet_id_idx (event_id, sheet_id)
+    KEY event_id_and_sheet_id_idx (event_id, sheet_id),
+    KEY user_id_idx (user_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
 CREATE TABLE IF NOT EXISTS administrators (

my.cnf

@@ -0,0 +1,35 @@
+# For advice on how to change settings please see
+# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
+
+[mysqld]
+#
+# Remove leading # and set to the amount of RAM for the most important data
+# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
+# innodb_buffer_pool_size = 128M
+#
+# Remove leading # to turn on a very important data integrity option: logging
+# changes to the binary log between backups.
+# log_bin
+#
+# Remove leading # to set options mainly useful for reporting servers.
+# The server defaults are faster for transactions and fast SELECTs.
+# Adjust sizes as needed, experiment to find the optimal values.
+# join_buffer_size = 128M
+# sort_buffer_size = 2M
+# read_rnd_buffer_size = 2M
+
+innodb_flush_log_at_trx_commit = 0
+innodb_flush_method=O_DIRECT
+
+datadir=/var/lib/mysql
+socket=/var/lib/mysql/mysql.sock
+
+# Disabling symbolic-links is recommended to prevent assorted security risks
+symbolic-links=0
+
+# Recommended in standard MySQL setup
+sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
+
+[mysqld_safe]
+log-error=/var/log/mysqld.log
+pid-file=/var/run/mysqld/mysqld.pid

mysqld.service

@@ -0,0 +1,48 @@
+#
+# Simple MySQL systemd service file
+#
+# systemd supports lots of fancy features, look here (and linked docs) for a full list: 
+#   http://www.freedesktop.org/software/systemd/man/systemd.exec.html
+#
+# Note: this file ( /usr/lib/systemd/system/mysql.service )
+# will be overwritten on package upgrade, please copy the file to 
+#
+#  /etc/systemd/system/mysql.service 
+#  
+# to make needed changes.
+# 
+# systemd-delta can be used to check differences between the two mysql.service files.
+#
+
+[Unit]
+Description=MySQL Community Server
+After=network.target
+After=syslog.target
+
+[Install]
+WantedBy=multi-user.target
+Alias=mysql.service
+
+[Service]
+User=mysql
+Group=mysql
+
+# Execute pre and post scripts as root
+PermissionsStartOnly=true
+
+# Needed to create system tables etc.
+ExecStartPre=/usr/bin/mysql-systemd-start pre
+
+# Start main service
+ExecStart=/usr/bin/mysqld_safe --basedir=/usr
+
+# Don't signal startup success before a ping works
+ExecStartPost=/usr/bin/mysql-systemd-start post
+
+# Give up if ping don't get an answer
+TimeoutSec=600
+
+Restart=always
+PrivateTmp=false
+
+

nginx.conf

@@ -0,0 +1,115 @@
+# For more information on configuration, see:
+#   * Official English Documentation: http://nginx.org/en/docs/
+#   * Official Russian Documentation: http://nginx.org/ru/docs/
+
+user isucon;
+worker_processes 1;
+error_log /var/log/nginx/error.log;
+pid /run/nginx.pid;
+
+# Load dynamic modules. See /usr/share/nginx/README.dynamic.
+include /usr/share/nginx/modules/*.conf;
+
+events {
+    worker_connections 2048;
+    multi_accept on;
+    use epoll;
+}
+
+http {
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+    log_format  isucon '$time_local $msec\t$status\treqtime:$request_time\t'
+                       'in:$request_length\tout:$bytes_sent\trequest:$request\t'
+                       'acceptencoding:$http_accept_encoding\treferer:$http_referer\t'
+                       'ua:$http_user_agent';
+
+    #access_log  /var/log/nginx/access.log  isucon;
+    access_log          off;
+
+    sendfile            on;
+    tcp_nopush          on;
+    tcp_nodelay         on;
+    keepalive_timeout   600;
+    types_hash_max_size 2048;
+
+    include             /etc/nginx/mime.types;
+    default_type        application/octet-stream;
+
+    gzip_static on;
+    gzip_proxied off;
+
+    upstream app {
+        server 127.0.0.1:8080;
+        keepalive 4;
+    }
+
+    server {
+        listen       80 default_server;
+        listen       [::]:80 default_server;
+        server_name  _;
+        root         /usr/share/nginx/html;
+
+        # Load configuration files for the default server block.
+        include /etc/nginx/default.d/*.conf;
+
+        location ^~ /favicon.ico {
+            root /home/isucon/torb/webapp/static/;
+            expires 1y;
+            add_header Cache-Control public;
+            add_header ETag "";
+        }
+        location ^~ /css/ {
+            root /home/isucon/torb/webapp/static/;
+            expires 1y;
+            add_header Cache-Control public;
+            add_header ETag "";
+        }
+        location ^~ /js/ {
+            root /home/isucon/torb/webapp/static/;
+            expires 1y;
+            add_header Cache-Control public;
+            add_header ETag "";
+        }
+
+        location / {
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_pass http://app;
+        }
+    }
+
+# Settings for a TLS enabled server.
+#
+#    server {
+#        listen       443 ssl http2 default_server;
+#        listen       [::]:443 ssl http2 default_server;
+#        server_name  _;
+#        root         /usr/share/nginx/html;
+#
+#        ssl_certificate "/etc/pki/nginx/server.crt";
+#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
+#        ssl_session_cache shared:SSL:1m;
+#        ssl_session_timeout  10m;
+#        ssl_ciphers HIGH:!aNULL:!MD5;
+#        ssl_prefer_server_ciphers on;
+#
+#        # Load configuration files for the default server block.
+#        include /etc/nginx/default.d/*.conf;
+#
+#        location / {
+#        }
+#
+#        error_page 404 /404.html;
+#            location = /40x.html {
+#        }
+#
+#        error_page 500 502 503 504 /50x.html;
+#            location = /50x.html {
+#        }
+#    }
+
+}
+

nginx.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=The nginx HTTP and reverse proxy server
+After=network.target remote-fs.target nss-lookup.target
+
+[Service]
+Type=forking
+PIDFile=/run/nginx.pid
+# Nginx will fail to start if /run/nginx.pid already exists but has the wrong
+# SELinux context. This might happen when running `nginx -t` from the cmdline.
+# https://bugzilla.redhat.com/show_bug.cgi?id=1268621
+ExecStartPre=/usr/bin/rm -f /run/nginx.pid
+ExecStartPre=/usr/sbin/nginx -t
+ExecStart=/usr/sbin/nginx
+ExecReload=/bin/kill -s HUP $MAINPID
+KillSignal=SIGQUIT
+TimeoutStopSec=5
+KillMode=process
+PrivateTmp=true
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target

on-start-profile

@@ -0,0 +1,15 @@
+#!/bin/bash
+set -x
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:$PATH
+
+rm -rf /tmp/bench
+mkdir -p /tmp/bench
+cd /tmp/bench
+date "+%Y%m%d_%H%M%S" > start_date
+sudo mv /var/log/nginx/access.log /var/log/nginx/access.log.bak
+sudo kill -USR1 $(cat /var/run/nginx.pid)
+(timeout 60 dstat -tam --output=dstat.csv 1>/dev/null 2>/dev/null &)
+(timeout 60 pidstat -C 'nginx|mysql|torb' -hur -p ALL 1 > pidstat.log &)
+(timeout 60 netstat -a -p --tcp -c > netstat.log &)
+(timeout 60 myprofiler -user isucon -password isucon > myprofiler.log &)
+

sysctl.conf

@@ -0,0 +1,22 @@
+# sysctl settings are defined through files in
+# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
+#
+# Vendors settings live in /usr/lib/sysctl.d/.
+# To override a whole file, create a new file with the same in
+# /etc/sysctl.d/ and put new settings there. To override
+# only specific settings, add a file with a lexically later
+# name in /etc/sysctl.d/ and put new settings there.
+#
+# For more information, see sysctl.conf(5) and sysctl.d(5).
+#
+net.ipv4.tcp_max_tw_buckets = 2000000
+net.ipv4.ip_local_port_range = 10000 65535
+net.ipv4.tcp_tw_recycle = 1
+net.ipv4.tcp_tw_reuse = 1
+net.ipv4.tcp_fin_timeout = 3
+net.ipv4.tcp_rmem = 16384 131072 262144
+net.ipv4.tcp_wmem = 16384 131072 262144
+net.ipv4.tcp_mem  = 2048000 4096000 4096000
+
+net.core.somaxconn = 32768
+net.core.netdev_max_backlog = 8192

torb.go.service

@@ -0,0 +1,20 @@
+[Unit]
+Description = isucon8 qualifier webapp in Group
+After=mysqld.service
+
+[Service]
+WorkingDirectory=/home/isucon/torb/webapp/go
+EnvironmentFile=/home/isucon/torb/webapp/env.sh
+
+ExecStart = /home/isucon/torb/webapp/go/torb
+
+Restart   = always
+Type      = simple
+User      = isucon
+Group     = isucon
+
+StandardOutput=null
+StandardError=null
+
+[Install]
+WantedBy = multi-user.target

webapp/go/Makefile

@@ -1,12 +1,10 @@
 all: build
+GO := GOPATH=`pwd` go
 
-.PHONY: clean
-clean:
-	rm -rf torb
-
-deps:
-	gb vendor restore
+.PHONY: init
+init: 
+	$(GO) get -d ./...
 
 .PHONY: build
-build:
-	GOPATH=`pwd`:`pwd`/vendor go build -v torb
+build: 
+	$(GO) install torb

webapp/go/run.sh

@@ -0,0 +1,8 @@
+export APP_PORT=5000
+export DB_DATABASE=torb
+export DB_HOST=localhost
+export DB_PORT=3306
+export DB_USER=isucon
+export DB_PASS=isucon
+./bin/torb
+

webapp/go/src/.gitignore

@@ -0,0 +1,2 @@
+github.com
+golang.org