I am installing Galera 4 on top of MySQL 8 on Debian but can't make it work. Once I start first node with bootstrap command:
mysqld_bootstrap
it starts with the following options:
/usr/sbin/mysqld $$'$\'$\\\'--wsrep-new-cluster --wsrep-on\\\'\'' --wsrep_start_position=00000000-0000-0000-0000-000000000000:-1
Problem is there is no pid file created and even though it appears to be running and I can't connect to the database.
There is nothing going to the log file either so I think it is ommiting the config files.
I have tried running config validator:
mysqld --validate_config
but it hangs on futex (checked with strace). In both cases it is not possible to kill mysqld normally and -9 option has to be used.
LXC is used to run this instance with following kernel:
Linux node01 4.15.18-26-pve #1 SMP PVE 4.15.18-54 (Sat, 15 Feb 2020 15:34:24 +0100) x86_64 GNU/Linux
The answer was pretty obvious after some investigation. No rsync used to sync the cluster was installed on the nodes so they can't sync together.
installed ejabberd от FreeBSD
then install mod_log_chat (ejabberdctl modules_update_specs -> ejabberdctl module_install mod_log_chat) and see error when starting ejabberd:
[error] Supervisor ejabberd_sup had child ejabberd_gen_mod_sup started with gen_mod:start_link() at undefined exit with reason {'EXIT',{undef,[{econf,any,[],[]},{mod_log_chat,mod_opt_type,1,[{file,"/root/.ejabberd-modules/sources/ejabberd-contrib/mod_log_chat/src/mod_log_chat.erl"},{line,282}]},{gen_mod,'-get_validators/2-fun-1-',3,[{file,"src/gen_mod.erl"},{line,512}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{gen_mod,get_validators,2,[{file,"src/gen_mod.erl"},{line,499}]},{gen_mod,validate_opts,3,[{file,"src/gen_mod.erl"},{line,557}]},{gen_mod,start_module,5,[{file,"src/gen_mod.erl"},{line,209}]},{lists,foreach,...}]}} in context start_error
02:36:32.939 [critical] Failed to start ejabberd application: {error,{shutdown,{failed_to_start_child,ejabberd_gen_mod_sup,{'EXIT',{undef,[{econf,any,[],[]},{mod_log_chat,mod_opt_type,1,[{file,"/root/.ejabberd-modules/sources/ejabberd-contrib/mod_log_chat/src/mod_log_chat.erl"},{line,282}]},{gen_mod,'-get_validators/2-fun-1-',3,[{file,"src/gen_mod.erl"},{line,512}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{gen_mod,get_validators,2,[{file,"src/gen_mod.erl"},{line,499}]},{gen_mod,validate_opts,3,[{file,"src/gen_mod.erl"},{line,557}]},{gen_mod,start_module,5,[{file,"src/gen_mod.erl"},{line,209}]},{lists,foreach,2,[{file,"lists.erl"},{line,1338}]}]}}}}}
Right, mod_log_chat requires ejabberd 19.08 or higher since this commit: https://github.com/processone/ejabberd-contrib/commit/857d350a7119d63fc85555cc66df7ff923b91e39
That was not documented in the module README.txt file...
You have two solutions:
Upgrade your ejabberd 19.05 to 19.08 or higher
or Downgrade your mod_log_chat source code to a version older than the mentioned one.
I have KVM virtual machine running CentOS 7 as guest OS. I'm trying to attach an additional disk to it on the run (without shutting it down) using this command:
$ sudo virsh attach-disk centos --source /var/lib/libvirt/images/newdisk.img --target sdb --persistent
But receive an error:
error: Failed to attach disk
error: internal error: cannot update AppArmor profile 'libvirt-d2e7bbb8-c7b3-44ec-b0ea-27539e0df732'
If I do the same with Debian guest - everything is ok.
What is difference, how to solve that?
UPDATE:
I have a comment!
I compared two VM's xml and saw that CentOS have QEMU-agent in his configuration:
<channel type="unix">
<source mode="bind" path="/var/lib/libvirt/qemu/channel/target/centos_auto.org.qemu.guest_agent.0"></source>
<target name="org.qemu.guest_agent.0" type="virtio"></target>
<address bus="0" controller="0" port="1" type="virtio-serial"></address>
</channel>
Then I removed "channel qemu-ga", restarted VM and checked "hot add" feature. It worked.
I tested it on other VMs (CentOS, Fedora, Debian) and saw the same.
As a result:
If enable qemu-agent i cannot use hot plug.
If use "hot plug" i must forget about agent.
Is it my mistake in configuration or these features can't work together?
Host-OS: Ubuntu 15.10
QEMU emulator: now 2.4.92 (tested 2.3 and 2.4.1)
VMM: 1.3.0
This is a clear bug in the apparmor security driver for libvirt. The existence of the QEMU guest agent config in the XML should have no impact on ability to hotplug disks to a guest. This bug should be reported to the libvirt upstream, or Ubuntu bug trackers.
I have Windows XP installed in my system.I have installed tortoisehg-2.10-hg-2.8-x86.msi.
I have checkpoint vpn1-secuRemote installed on my system. I am trying to clone a project.But when i clone a project i get the following error
URLError: [Errno 11001] getaddrinfo failed
[command returned code 255 Tue Jul 01 22:40:02 2014]
The same worked when i connect from my office. The mercurial.ini is as follows
# Generated by TortoiseHg settings dialog
[ui]
username = avinash
verbose = True
Since it is windows xp i have placed my mercurial.ini in
C:\Documents and Settings\avinash\mercurial.ini.
I have gone through several links in stackoverflow. But was not able to figure out . Can anyone help please. Thanks in advance
"getaddrinfo failed" means you have problem not with TortoiseHG per se, but with resolver (DNS from client-side): no conversion hostname -> IP.
Fix it asking question on SU
I tried to install Jekyll On Windows 7. I followed this guide http://www.testically.org/2012/02/02/installing-jekyll-and-ruby-on-windows/
So I first downloaded Ruby and added \;C:\Ruby193\bin to the path variable.
I then downloaded DevKit and added \;C:\Users\jimmy\Downloads\teeheeband\bin\ to the path variable as well.
I then opened my command and did the following (in order)
cd ;C:\Users\jimmy\Downloads\teeheeband
ruby dk.rb init
ruby dk.rb install
the following are the codes that appeared on my screen when I did the above steps.
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\jimmy>cd ;C:\Users\jimmy\Downloads\teeheeband
C:\Users\jimmy\Downloads\teeheeband>ruby dk.rb init
[INFO] found RubyInstaller v1.9.3 at C:/Ruby193
Initialization complete! Please review and modify the auto-generated
'config.yml' file to ensure it contains the root directories to all
of the installed Rubies you want enhanced by the DevKit.
C:\Users\jimmy\Downloads\teeheeband>ruby dk.rb install
[INFO] Skipping existing gem override for 'C:/Ruby193'
[WARN] Skipping existing DevKit helper library for 'C:/Ruby193'
C:\Users\jimmy\Downloads\teeheeband>gem install jekyll
Successfully installed jekyll-0.12.0
1 gem installed
Installing ri documentation for jekyll-0.12.0...
Installing RDoc documentation for jekyll-0.12.0...
C:\Users\jimmy\Downloads\teeheeband>
Once I did the above, I downloaded github and cloned the repo that I wanted to work on. I then went to Gitshell and did the following
Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.
C:\Users\jimmy\Documents\GitHub> cd prog694.github.com
C:\Users\jimmy\Documents\GitHub\prog694.github.com [new-branch]> jekyll --server
--auto
Configuration from C:/Users/jimmy/Documents/GitHub/prog694.github.com/_config.ym
l
Auto-regenerating enabled: C:/Users/jimmy/Documents/GitHub/prog694.github.com ->
C:/Users/jimmy/Documents/GitHub/prog694.github.com/_site
[2013-02-03 20:19:00] regeneration: 402 files changed
[2013-02-03 20:19:01] INFO WEBrick 1.3.1
[2013-02-03 20:19:01] INFO ruby 1.9.3 (2013-01-15) [i386-mingw32]
[2013-02-03 20:19:01] INFO WEBrick::HTTPServer#start: pid=4036 port=4000
[2013-02-03 20:20:24] ERROR no access permission to `/'
jimmy-PC - - [03/Feb/2013:20:20:24 Atlantic Standard Time] "GET / HTTP/1.1" 403
283
- -> /
[2013-02-03 20:20:24] ERROR `/favicon.ico' not found.
jimmy-PC - - [03/Feb/2013:20:20:24 Atlantic Standard Time] "GET /favicon.ico HTT
P/1.1" 404 281
- -> /favicon.ico
Finally I opened a browser and tried to run a local copy of the website via : localhost:4000
I failed and got this message
Forbidden
no access permission to `/'
WEBrick/1.3.1 (Ruby/1.9.3/2013-01-15) at 127.0.0.1:4000
so I used h**p://127.0.0.1:4000/( replace t with **)
failed again
Forbidden
no access permission to `/'
WEBrick/1.3.1 (Ruby/1.9.3/2013-01-15) at 127.0.0.1:4000
All I want is to be able to open and run a local version of this website. Any help would be greatly appreciated.
Check if your port 4000 is not used by something else, or if you have a firewall enable access to it.
I'd highly disrecomend Windows for jekyll (or any ruby gem/app), installing and using it in Linux would be much easier.