Redis Installing Redis on CentOS 7?

Xon · Dec 13, 2015

eva2000 said: ↑

could be redis server was down or being restarted or something ? might need to ask @Xon for specifics
Click to expand...

I've mostly seen this occur when Redis is stalling due to disk IO in a contested virtual environment.

Changing from RDB to AOF helps, but you can still get unpredictable latancy during peak-times.

You can use the AOF (change log) persistence rather than the RDB (dump) persistence.
Code:
appendonly yes
aof-rewrite-incremental-fsync yes
appendfsync everysec
Alternatively, just disable persistence all together or periodically do RDB snapshots when you know the site isn't as busy (ie use cron & redis-cli).

Another alternative if the contents of Redis is important(which for Xenforo it really isn't); is to use a slave todo disk-less replication to and do backup snapshots from that redis instance.

eva2000 · Dec 13, 2015

cheers @Xon

Sunka · Dec 13, 2015

Xon said: ↑

appendonly yes
aof-rewrite-incremental-fsync yes
appendfsync everysec
Click to expand...

That settings are allready in conf.
This error shows for first time today, it is first error from redis.
I will leave it as it is, so will shall see is this something that is going to happen more and more, or just was today case.

Thanks @Xon

Sunka · May 11, 2016

Redis updated to 3.2.0 version.
I have updated and everything seems OK

rdan · May 12, 2016

Sunka said: ↑

Redis updated to 3.2.0 version.
I have updated and everything seems OK
Click to expand...

Mine too

Sunka · Aug 1, 2016

Redis is updated to 3.2.2 version
Updated and looks good

Code:

[root@tvor-ocean ~]# yum list updates --disableplugin=priorities --enablerepo=remi
Loaded plugins: fastestmirror
base                                                    | 3.6 kB     00:00     
elasticsearch-2.x                                       | 2.9 kB     00:00     
epel/x86_64/metalink                                    |  24 kB     00:00     
extras                                                  | 3.4 kB     00:00     
mariadb                                                 | 2.9 kB     00:00     
remi                                                    | 2.9 kB     00:00     
updates                                                 | 3.4 kB     00:00     
remi/primary_db                                           | 1.4 MB   00:00     
Loading mirror speeds from cached hostfile
* base: mirror.de.leaseweb.net
* epel: mirror.de.leaseweb.net
* extras: mirror.imt-systems.com
* remi: mirror.23media.de
* updates: mirror.de.leaseweb.net
Updated Packages
ImageMagick-last.x86_64                      6.9.5.4-1.el7.remi            remi
ImageMagick-last-c++.x86_64                  6.9.5.4-1.el7.remi            remi
ImageMagick-last-c++-devel.x86_64            6.9.5.4-1.el7.remi            remi
ImageMagick-last-devel.x86_64                6.9.5.4-1.el7.remi            remi
ImageMagick-last-libs.x86_64                 6.9.5.4-1.el7.remi            remi
redis.x86_64                                 3.2.2-1.el7.remi              remi



[root@tvor-ocean ~]# redis-cli save
OK


[root@tvor-ocean ~]# yum update --disableplugin=priorities --enablerepo=remi
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.de.leaseweb.net
* epel: mirror.de.leaseweb.net
* extras: mirror.imt-systems.com
* remi: mirror.23media.de
* updates: mirror.de.leaseweb.net
Resolving Dependencies
--> Running transaction check
---> Package ImageMagick-last.x86_64 0:6.9.5.3-1.el7.remi will be updated
---> Package ImageMagick-last.x86_64 0:6.9.5.4-1.el7.remi will be an update
---> Package ImageMagick-last-c++.x86_64 0:6.9.5.3-1.el7.remi will be updated
---> Package ImageMagick-last-c++.x86_64 0:6.9.5.4-1.el7.remi will be an update
---> Package ImageMagick-last-c++-devel.x86_64 0:6.9.5.3-1.el7.remi will be updated
---> Package ImageMagick-last-c++-devel.x86_64 0:6.9.5.4-1.el7.remi will be an update
---> Package ImageMagick-last-devel.x86_64 0:6.9.5.3-1.el7.remi will be updated
---> Package ImageMagick-last-devel.x86_64 0:6.9.5.4-1.el7.remi will be an update
---> Package ImageMagick-last-libs.x86_64 0:6.9.5.3-1.el7.remi will be updated
---> Package ImageMagick-last-libs.x86_64 0:6.9.5.4-1.el7.remi will be an update
---> Package redis.x86_64 0:3.2.1-2.el7.remi will be updated
---> Package redis.x86_64 0:3.2.2-1.el7.remi will be an update
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================
Package                       Arch      Version                 Repository
                                                                          Size
===============================================================================
Updating:
ImageMagick-last              x86_64    6.9.5.4-1.el7.remi      remi     70 k
ImageMagick-last-c++          x86_64    6.9.5.4-1.el7.remi      remi    167 k
ImageMagick-last-c++-devel    x86_64    6.9.5.4-1.el7.remi      remi    105 k
ImageMagick-last-devel        x86_64    6.9.5.4-1.el7.remi      remi    105 k
ImageMagick-last-libs         x86_64    6.9.5.4-1.el7.remi      remi    2.2 M
redis                         x86_64    3.2.2-1.el7.remi        remi    528 k

Transaction Summary
===============================================================================
Upgrade  6 Packages

Total download size: 3.2 M
Is this ok [y/d/N]: y
Downloading packages:
No Presto metadata available for remi
(1/6): ImageMagick-last-6.9.5.4-1.el7.remi.x86_64.rpm     |  70 kB   00:00     
(2/6): ImageMagick-last-devel-6.9.5.4-1.el7.remi.x86_64.r | 105 kB   00:00     
(3/6): ImageMagick-last-c++-devel-6.9.5.4-1.el7.remi.x86_ | 105 kB   00:00     
(4/6): ImageMagick-last-c++-6.9.5.4-1.el7.remi.x86_64.rpm | 167 kB   00:00     
(5/6): redis-3.2.2-1.el7.remi.x86_64.rpm                  | 528 kB   00:00     
(6/6): ImageMagick-last-libs-6.9.5.4-1.el7.remi.x86_64.rp | 2.2 MB   00:00     
-------------------------------------------------------------------------------
Total                                             9.2 MB/s | 3.2 MB  00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : ImageMagick-last-libs-6.9.5.4-1.el7.remi.x86_64            1/12
  Updating   : ImageMagick-last-6.9.5.4-1.el7.remi.x86_64                 2/12
  Updating   : ImageMagick-last-devel-6.9.5.4-1.el7.remi.x86_64           3/12
  Updating   : ImageMagick-last-c++-6.9.5.4-1.el7.remi.x86_64             4/12
  Updating   : ImageMagick-last-c++-devel-6.9.5.4-1.el7.remi.x86_64       5/12
  Updating   : redis-3.2.2-1.el7.remi.x86_64                              6/12
warning: /etc/redis.conf created as /etc/redis.conf.rpmnew
  Cleanup    : ImageMagick-last-c++-devel-6.9.5.3-1.el7.remi.x86_64       7/12
  Cleanup    : ImageMagick-last-devel-6.9.5.3-1.el7.remi.x86_64           8/12
  Cleanup    : ImageMagick-last-6.9.5.3-1.el7.remi.x86_64                 9/12
  Cleanup    : ImageMagick-last-c++-6.9.5.3-1.el7.remi.x86_64            10/12
  Cleanup    : ImageMagick-last-libs-6.9.5.3-1.el7.remi.x86_64           11/12
  Cleanup    : redis-3.2.1-2.el7.remi.x86_64                             12/12
  Verifying  : ImageMagick-last-c++-devel-6.9.5.4-1.el7.remi.x86_64       1/12
  Verifying  : redis-3.2.2-1.el7.remi.x86_64                              2/12
  Verifying  : ImageMagick-last-6.9.5.4-1.el7.remi.x86_64                 3/12
  Verifying  : ImageMagick-last-c++-6.9.5.4-1.el7.remi.x86_64             4/12
  Verifying  : ImageMagick-last-devel-6.9.5.4-1.el7.remi.x86_64           5/12
  Verifying  : ImageMagick-last-libs-6.9.5.4-1.el7.remi.x86_64            6/12
  Verifying  : ImageMagick-last-6.9.5.3-1.el7.remi.x86_64                 7/12
  Verifying  : ImageMagick-last-libs-6.9.5.3-1.el7.remi.x86_64            8/12
  Verifying  : ImageMagick-last-devel-6.9.5.3-1.el7.remi.x86_64           9/12
  Verifying  : ImageMagick-last-c++-6.9.5.3-1.el7.remi.x86_64            10/12
  Verifying  : ImageMagick-last-c++-devel-6.9.5.3-1.el7.remi.x86_64      11/12
  Verifying  : redis-3.2.1-2.el7.remi.x86_64                             12/12

Updated:
  ImageMagick-last.x86_64 0:6.9.5.4-1.el7.remi                                 
  ImageMagick-last-c++.x86_64 0:6.9.5.4-1.el7.remi                             
  ImageMagick-last-c++-devel.x86_64 0:6.9.5.4-1.el7.remi                       
  ImageMagick-last-devel.x86_64 0:6.9.5.4-1.el7.remi                           
  ImageMagick-last-libs.x86_64 0:6.9.5.4-1.el7.remi                           
  redis.x86_64 0:3.2.2-1.el7.remi                                             

Complete!

[root@tvor-ocean ~]# service redis restart
Redirecting to /bin/systemctl restart  redis.service

eva2000 · Aug 3, 2016

FYI Redis 3.2.3 is out

Code (Text):

yum update --disableplugin=priorities --enablerepo=remi -y
Loaded plugins: fastestmirror, security
Setting up Update Process
Loading mirror speeds from cached hostfile
* base: linux.mirrors.es.net
* extras: mirrors.linode.com
* remi: mirrors.mediatemple.net
* rpmforge: mirror.hmc.edu
* updates: linux.mirrors.es.net
Resolving Dependencies
--> Running transaction check
---> Package redis.x86_64 0:3.2.2-1.el6.remi will be updated
---> Package redis.x86_64 0:3.2.3-1.el6.remi will be an update
--> Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================================================================================================================================================================
Package                                                   Arch                                                       Version                                                              Repository                                                Size
==========================================================================================================================================================================================================================================================
Updating:
redis                                                     x86_64                                                     3.2.3-1.el6.remi                                                     remi                                                     882 k

Transaction Summary
==========================================================================================================================================================================================================================================================
Upgrade       1 Package(s)

Total download size: 882 k
Downloading Packages:
redis-3.2.3-1.el6.remi.x86_64.rpm                                                                                                                                                                                                  | 882 kB     00:00     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Updating   : redis-3.2.3-1.el6.remi.x86_64                                                                                                                                                                                                          1/2
  Cleanup    : redis-3.2.2-1.el6.remi.x86_64                                                                                                                                                                                                          2/2
  Verifying  : redis-3.2.3-1.el6.remi.x86_64                                                                                                                                                                                                          1/2
  Verifying  : redis-3.2.2-1.el6.remi.x86_64                                                                                                                                                                                                          2/2

Updated:
  redis.x86_64 0:3.2.3-1.el6.remi                                                                                                                                                                                                                         

Complete!

rdan · Aug 3, 2016

yum clean all && yum update -y

All my servers don't have it yet :|.

Sunka · Aug 3, 2016

Updated. Fast release, 3.2.2 released few days ago

eva2000 · Aug 3, 2016

https://raw.githubusercontent.com/antirez/redis/3.2/00-RELEASENOTES

Code (Text):

================================================================================
Redis 3.2.3     Released Tue Aug 02 10:55:24 CEST 2016
================================================================================

Upgrade urgency MODERATE: Fix replication delay and redis-cli security issue.

Hello,

this is a minor release of Redis addressing two bugs:

1. There was an inverted if statement logic problem in replication.c causing
   a replication delay. This is not an actual problem since things work
   as expected, but worth to fix ASAP anyway.

2. Redis-cli created the history file with insecure permissions, allowing
   reding from the file. This was actually a bug in linenoise which is
   now fixed. The applied fix is from Chris Lamb.

List of commits:

Qu Chen in commit e67ad1d:
Fix a bug to delay bgsave while AOF rewrite in progress for replication
1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 7153668:
Update linenoise to fix insecure redis-cli history file creation.
1 file changed, 6 insertions(+), 1 deletion(-)

narji · Nov 9, 2016

installing redis at nginx level with centmin.sh menu 22 add wordpress
123.09beta01 centos 7
from intruction here

and how to add /openresty-srcache-nginx-module-ffa9ab7 ?
is the module still needed for redis fully working at nginx level ?

Code:

nginx -V
nginx version: nginx/1.11.5
built by gcc 5.2.1 20150902 (Red Hat 5.2.1-2) (GCC)
built with LibreSSL 2.4.3
TLS SNI support enabled
configure arguments: --with-ld-opt='-lrt -ljemalloc -Wl,-z,relro -Wl,-rpath,/usr/local/lib' --with-cc-opt='-m64 -march=native -g -O3 -fstack-protector-strong --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wno-deprecated-declarations' --sbin-path=/usr/local/sbin/nginx --conf-path=/usr/local/nginx/conf/nginx.conf --with-http_stub_status_module --with-http_secure_link_module --add-module=../nginx-module-vts --with-libatomic --with-http_gzip_static_module --add-dynamic-module=../ngx_brotli --with-http_sub_module --with-http_addition_module --with-http_image_filter_module=dynamic --with-http_geoip_module --with-stream_geoip_module --with-stream_realip_module --with-threads --with-stream=dynamic --with-stream_ssl_module --with-http_realip_module --add-dynamic-module=../ngx-fancyindex-0.4.0 --add-module=../ngx_cache_purge-2.3 --add-module=../ngx_devel_kit-0.3.0 --add-module=../set-misc-nginx-module-0.31 --add-module=../echo-nginx-module-0.60 --add-module=../redis2-nginx-module-0.13 --add-module=../ngx_http_redis-0.3.7 --add-module=../memc-nginx-module-0.17 --add-module=../srcache-nginx-module-0.31 --add-module=../headers-more-nginx-module-0.31 --with-pcre=../pcre-8.39 --with-pcre-jit --with-http_ssl_module --with-http_v2_module --with-openssl=../libressl-2.4.3

Code:

custom_config_inc
LETSENCRYPT_DETECT='y'
LIBRESSL_SWITCH='y'
NGXDYNAMIC_BROTLI='y'
NGINX_LIBBROTLI='y'
CLANG='n'
PHP_PGO='y'
NGINX_DEVTOOLSETGCC='y'
GENERAL_DEVTOOLSETGCC='y'
RCLONE_ENABLE='y'

regards

eva2000 · Nov 9, 2016

narji said: ↑

installing redis at nginx level with centmin.sh menu 22 add wordpress
123.09beta01 centos 7
from intruction here

and how to add /openresty-srcache-nginx-module-ffa9ab7 ?
is the module still needed for redis fully working at nginx level ?
Click to expand...

yes it's needed an already enabled

--add-module=../srcache-nginx-module-0.31
Click to expand...

narji · Nov 9, 2016

eva2000 said: ↑

yes it's needed an already enabled
Click to expand...

you mean this module
--add-module=../srcache-nginx-module-0.31

its same module with
openresty-srcache-nginx-module-ffa9ab7 ?

eva2000 · Nov 9, 2016

Yup the directory name changed that's all - updated the original text now too

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