Layanan Redis macet dengan systemctl dan Type = notify

Aug 29 2020

Saya telah mengikuti jawaban ini: https://serverfault.com/a/893075/210494. Saya memiliki CentOS 7.8.

redis.service

[Service]
Type=notify
ExecStart=/opt/redis/bin/redis-server /opt/redis/conf/redis-master.conf
TimeoutStartSec=60
TimeoutStopSec=60
TimeOutSec=90
RestartSec=5s
Restart=on-success

redis-master.conf

daemonize no
supervised systemd

Ketika saya menjalankan layanan ini, proses Redis dimulai tetapi systemctlmacet dan saya harus menekan Ctrl-C untuk kembali ke shell.

Ini ada di log:

69486:C 28 Aug 2020 17:31:14.545 # Redis version=6.0.6, bits=64, commit=00000000, modified=0, pid=69486, just started
69486:C 28 Aug 2020 17:31:14.545 # Configuration loaded
69486:C 28 Aug 2020 17:31:14.545 # WARNING supervised by systemd - you MUST set appropriate values for TimeoutStartSec and TimeoutStopSec in your service unit.
69486:M 28 Aug 2020 17:31:14.546 * Increased maximum number of open files to 4096 (it was originally set to 1024).
69486:M 28 Aug 2020 17:31:14.547 * Running mode=standalone, port=6380.
69486:M 28 Aug 2020 17:31:14.547 # Server initialized

Jika saya berkomentar Type=notify, maka systemctl segera selesai tetapi ini ada di log.

68629:C 28 Aug 2020 17:29:58.933 # Redis version=6.0.6, bits=64, commit=00000000, modified=0, pid=68629, just started
68629:C 28 Aug 2020 17:29:58.933 # Configuration loaded
68629:C 28 Aug 2020 17:29:58.933 # WARNING supervised by systemd - you MUST set appropriate values for TimeoutStartSec and TimeoutStopSec in your service unit.
68629:C 28 Aug 2020 17:29:58.933 # systemd supervision requested, but NOTIFY_SOCKET not found
68629:M 28 Aug 2020 17:29:58.933 * Increased maximum number of open files to 4096 (it was originally set to 1024).
68629:M 28 Aug 2020 17:29:58.934 * Running mode=standalone, port=6380.
68629:M 28 Aug 2020 17:29:58.934 # Server initialized

Dimana masalahnya? Saya menemukan tutorial DigitalOcean yang tidak mereka miliki Type=notifydan saya menemukan masalah Redis ketika mereka berhasil merekomendasikannya Type=notify.

Memperbarui

Job for redis.service failed because a timeout was exceeded. See "systemctl status redis.service" and "journalctl -xe" for details.
[root@DB dev]# systemctl status redis
● redis.service - Redis
   Loaded: loaded (/etc/systemd/system/redis.service; enabled; vendor preset: disabled)
   Active: failed (Result: timeout) since Sun 2020-08-30 12:06:58 CEST; 46min ago
  Process: 11134 ExecStart=/opt/app/redis/default/bin/redis-server /opt/app/redis/default/conf/redis-master.conf (code=exited, status=0/SUCCESS)
 Main PID: 11134 (code=exited, status=0/SUCCESS)
Aug 30 12:05:57 DB systemd[1]: Starting Redis...
Aug 30 12:06:58 DB systemd[1]: redis.service start operation timed out. Terminating.
Aug 30 12:06:58 DB systemd[1]: Failed to start Redis.
Aug 30 12:06:58 DB systemd[1]: Unit redis.service entered failed state.
Aug 30 12:06:58 DB systemd[1]: redis.service failed.

Jawaban

5 LeosLiterak Aug 31 2020 at 16:26

Oke, masalahnya adalah systemddukungan tidak dikompilasi secara default. Anda perlu mengkompilasinya secara explicitelly. Saya akan menulis PR untuk memperbarui README.md di sumber karena ini tidak dijelaskan.