背景
redisの機能を確認するため
内容
サーバとクライアント、アーキテクチャ
publishとsubscribeについて
- チャネル
* - Publish（出版者）
- コマンドは、「PUBLISH チャンネル名 内容」
- Subscribeしているクライアントからデータが届く
- Subscribe（購読者）
- コマンドは、「SUBSCRIBE チャンネル名」
- 一度発行するとRedisにつながったまま
- 参考URL
スクリプト
#!/bin/bash
apt update
apt upgrade
apt install redis-server
nohup redis-server > aaa.out &
redis-cli ping >> publish_subscribe_test.log
redis-cli publish unko testmessage >> publish_subscribe_test.log
echo =======subscribe_success_1st======= >> publish_subscribe_test.log
nohup redis-cli subscribe unko >> publish_subscribe_test.log &
echo =======subscribe_fail_1st======= >> publish_subscribe_test.log
nohup redis-cli subscribe nohoge >> publish_subscribe_test.log &
echo =======publish_part2======= >> publish_subscribe_test.log
redis-cli publish unko testmessagepart2 >> publish_subscribe_test.log
echo =======publish_part3======= >> publish_subscribe_test.log
redis-cli publish unko testmessagepart3 >> publish_subscribe_test.log
echo =======publish_part4======= >> publish_subscribe_test.log
redis-cli publish unko testmessagepart4 >> publish_subscribe_test.log
echo =======publish_part5======= >> publish_subscribe_test.log
redis-cli publish unko testmessagepart5 >> publish_subscribe_test.log
echo =======subscribe_success_final======= >> publish_subscribe_test.log
nohup redis-cli subscribe unko >> publish_subscribe_test.log &
echo =======pubsub_channel_lists======= >> publish_subscribe_test.log
redis-cli pubsub channels >> publish_subscribe_test.log
echo =======pubsub_nums_channel_lists======= >> publish_subscribe_test.log
redis-cli pubsub numsub unko >> publish_subscribe_test.log
redis-cli LATEST-MESSAGE unko >> publish_subscribe_test.log
redis-cli pubsub numsub nohoge >> publish_subscribe_test.log
echo =======final_redis_ping======= >> publish_subscribe_test.log
redis-cli ping >> publish_subscribe_test.log
echo =======unsubscribe======= >> publish_subscribe_test.log
nohup redis-cli unsubscribe unko >> publish_subscribe_test.log &
権限変更
chmod 755 redis_test.sh
ls -lrt redis_test.sh
- 出力例
-rwxr-xr-x 1 root root 1830 Mar 3 02:08 redis_test.sh
スクリプトの実行
/bin/bash redis_test.sh > result.log
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
Extracting templates from packages: 100%
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
nohup: redirecting stderr to stdout
Could not connect to Redis at 127.0.0.1:6379: Connection refused
nohup: redirecting stderr to stdout
nohup: nohup: redirecting stderr to stdout
redirecting stderr to stdout
nohup: redirecting stderr to stdout
nohup: redirecting stderr to stdout
スクリプト実行結果のログ
ls -l ; cat result.log
total 44
-rw-r--r-- 1 root root 548 Mar 3 08:12 aaa.out
-rw-r--r-- 1 root root 658 Mar 3 08:12 publish_subscribe_test.log
-rwxr-xr-x 1 root root 1742 Mar 3 08:12 redis_test.sh
-rw-r--r-- 1 root root 27702 Mar 3 08:12 result.log
drwxr-xr-x 1 root root 4096 Feb 28 14:27 sample_data
Get:1 https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/ InRelease [3,626 B]
Hit:2 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64 InRelease
Get:3 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Get:4 https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/ Packages [50.4 kB]
Hit:5 http://archive.ubuntu.com/ubuntu jammy InRelease
Get:6 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]
Hit:7 https://ppa.launchpadcontent.net/c2d4u.team/c2d4u4.0+/ubuntu jammy InRelease
Hit:8 https://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu jammy InRelease
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Hit:10 https://ppa.launchpadcontent.net/graphics-drivers/ppa/ubuntu jammy InRelease
Hit:11 http://archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:12 https://ppa.launchpadcontent.net/ubuntugis/ppa/ubuntu jammy InRelease
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Get:14 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1,074 kB]
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Reading package lists...
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40 packages can be upgraded. Run 'apt list --upgradable' to see them.
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The following packages have been kept back:
libcudnn8 libcudnn8-dev libnccl-dev libnccl2
The following packages will be upgraded:
base-files binutils binutils-common binutils-x86-64-linux-gnu coreutils cuda-compat-12-2
cuda-keyring cuda-toolkit-12-config-common cuda-toolkit-config-common libbinutils libc-bin
libctf-nobfd0 libctf0 libgnutls30 libldap-2.5-0 libpam-modules libpam-modules-bin libpam-runtime
libpam0g libperl5.34 libprocps8 libudev1 linux-libc-dev login openssl passwd perl perl-base
perl-modules-5.34 procps r-base r-base-core r-base-dev r-recommended tar tzdata
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Get:2 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64 cuda-compat-12-2 535.161.07-1 [33.6 MB]
Get:3 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 base-files amd64 12ubuntu4.6 [62.5 kB]
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Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 coreutils amd64 8.32-4.1ubuntu1.1 [1,436 kB]
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Get:25 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libprocps8 amd64 2:3.3.17-6ubuntu2.1 [36.2 kB]
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Get:31 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 binutils-x86-64-linux-gnu amd64 2.38-4ubuntu2.6 [2,326 kB]
Get:32 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libbinutils amd64 2.38-4ubuntu2.6 [662 kB]
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Get:35 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 libldap-2.5-0 amd64 2.5.16+dfsg-0ubuntu0.22.04.2 [183 kB]
Get:36 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 linux-libc-dev amd64 5.15.0-97.107 [1,325 kB]
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Current default time zone: 'Etc/UTC'
Local time is now: Sun Mar 3 08:12:03 UTC 2024.
Universal Time is now: Sun Mar 3 08:12:03 UTC 2024.
Run 'dpkg-reconfigure tzdata' if you wish to change it.
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Setting up binutils (2.38-4ubuntu2.6) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for libc-bin (2.35-0ubuntu3.6) ...
/sbin/ldconfig.real: /usr/local/lib/libtbb.so.12 is not a symbolic link
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Processing triggers for man-db (2.10.2-1) ...
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
libjemalloc2 liblua5.1-0 liblzf1 lua-bitop lua-cjson redis-tools
Suggested packages:
ruby-redis
The following NEW packages will be installed:
libjemalloc2 liblua5.1-0 liblzf1 lua-bitop lua-cjson redis-server redis-tools
0 upgraded, 7 newly installed, 0 to remove and 4 not upgraded.
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Get:2 http://archive.ubuntu.com/ubuntu jammy/universe amd64 liblua5.1-0 amd64 5.1.5-8.1build4 [99.9 kB]
Get:3 http://archive.ubuntu.com/ubuntu jammy/universe amd64 liblzf1 amd64 3.6-3 [7,444 B]
Get:4 http://archive.ubuntu.com/ubuntu jammy/universe amd64 lua-bitop amd64 1.0.2-5 [6,680 B]
Get:5 http://archive.ubuntu.com/ubuntu jammy/universe amd64 lua-cjson amd64 2.1.0+dfsg-2.1 [17.4 kB]
Get:6 http://archive.ubuntu.com/ubuntu jammy/universe amd64 redis-tools amd64 5:6.0.16-1ubuntu1 [856 kB]
Get:7 http://archive.ubuntu.com/ubuntu jammy/universe amd64 redis-server amd64 5:6.0.16-1ubuntu1 [45.9 kB]
Fetched 1,273 kB in 1s (1,915 kB/s)
Selecting previously unselected package libjemalloc2:amd64.
(Reading database ... 121749 files and directories currently installed.)
Preparing to unpack .../0-libjemalloc2_5.2.1-4ubuntu1_amd64.deb ...
Unpacking libjemalloc2:amd64 (5.2.1-4ubuntu1) ...
Selecting previously unselected package liblua5.1-0:amd64.
Preparing to unpack .../1-liblua5.1-0_5.1.5-8.1build4_amd64.deb ...
Unpacking liblua5.1-0:amd64 (5.1.5-8.1build4) ...
Selecting previously unselected package liblzf1:amd64.
Preparing to unpack .../2-liblzf1_3.6-3_amd64.deb ...
Unpacking liblzf1:amd64 (3.6-3) ...
Selecting previously unselected package lua-bitop:amd64.
Preparing to unpack .../3-lua-bitop_1.0.2-5_amd64.deb ...
Unpacking lua-bitop:amd64 (1.0.2-5) ...
Selecting previously unselected package lua-cjson:amd64.
Preparing to unpack .../4-lua-cjson_2.1.0+dfsg-2.1_amd64.deb ...
Unpacking lua-cjson:amd64 (2.1.0+dfsg-2.1) ...
Selecting previously unselected package redis-tools.
Preparing to unpack .../5-redis-tools_5%3a6.0.16-1ubuntu1_amd64.deb ...
Unpacking redis-tools (5:6.0.16-1ubuntu1) ...
Selecting previously unselected package redis-server.
Preparing to unpack .../6-redis-server_5%3a6.0.16-1ubuntu1_amd64.deb ...
Unpacking redis-server (5:6.0.16-1ubuntu1) ...
Setting up libjemalloc2:amd64 (5.2.1-4ubuntu1) ...
Setting up lua-cjson:amd64 (2.1.0+dfsg-2.1) ...
Setting up liblzf1:amd64 (3.6-3) ...
Setting up lua-bitop:amd64 (1.0.2-5) ...
Setting up liblua5.1-0:amd64 (5.1.5-8.1build4) ...
Setting up redis-tools (5:6.0.16-1ubuntu1) ...
Setting up redis-server (5:6.0.16-1ubuntu1) ...
invoke-rc.d: could not determine current runlevel
invoke-rc.d: policy-rc.d denied execution of start.
Created symlink /etc/systemd/system/redis.service → /lib/systemd/system/redis-server.service.
Created symlink /etc/systemd/system/multi-user.target.wants/redis-server.service → /lib/systemd/system/redis-server.service.
Processing triggers for man-db (2.10.2-1) ...
Processing triggers for libc-bin (2.35-0ubuntu3.6) ...
/sbin/ldconfig.real: /usr/local/lib/libtbb.so.12 is not a symbolic link
/sbin/ldconfig.real: /usr/local/lib/libtbbbind.so.3 is not a symbolic link
/sbin/ldconfig.real: /usr/local/lib/libtbbbind_2_0.so.3 is not a symbolic link
/sbin/ldconfig.real: /usr/local/lib/libtbbmalloc.so.2 is not a symbolic link
/sbin/ldconfig.real: /usr/local/lib/libtbbmalloc_proxy.so.2 is not a symbolic link
/sbin/ldconfig.real: /usr/local/lib/libtbbbind_2_5.so.3 is not a symbolic link
redis-server起動ログ
cat aaa.out
2390:C 03 Mar 2024 08:12:11.602 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
2390:C 03 Mar 2024 08:12:11.602 # Redis version=6.0.16, bits=64, commit=00000000, modified=0, pid=2390, just started
2390:C 03 Mar 2024 08:12:11.602 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
2390:M 03 Mar 2024 08:12:11.604 * Running mode=standalone, port=6379.
2390:M 03 Mar 2024 08:12:11.604 # Server initialized
2390:M 03 Mar 2024 08:12:11.604 * Ready to accept connections
publish、subscribe時のログ
cat publish_subscribe_test.log
publish_part3で、nohogeはpublishしていないのにもかかわらず、
なぜsubscribeでnohogeを取得しようとしているのかがよくわからない・・・
=======subscribe_success_1st=======
=======subscribe_fail_1st=======
=======subscribe_fail_2nd=======
=======publish_part2=======
=======subscribe_success_1st=======
=======subscribe_fail_1st=======
=======publish_part2=======
subscribe
unko
1
message
unko
testmessagepart2
1
=======publish_part3=======
subscribe
nohoge
1
message
unko
testmessagepart3
1
=======publish_part4=======
message
unko
testmessagepart4
1
=======publish_part5=======
message
unko
testmessagepart5
1
=======subscribe_success_final=======
=======pubsub_channel_lists=======
nohoge
unko
=======pubsub_nums_channel_lists=======
subscribe
unko
1
unko
2
ERR unknown command `LATEST-MESSAGE`, with args beginning with: `unko`,
nohoge
1
=======final_redis_ping=======
PONG
=======unsubscribe=======
unsubscribe
unko
0