I have an Eucalyptus-based cloud using Xen with 3 nodes. When I run a VM more than twice the number of physical machines in the xen cluster, the extra VMs never boot up, they always change state from pending to terminate, and the log file shows the node controller shutoff the extra VM after it check the instances number. When I manually shutdown some VM, then I can easily start up some VM exactly as the number I've shutdown.
The log shows this error:
ERROR: [Tue Jan 17 12:51:05 2012][004231][EUCAERROR ] libvirt: POST
operation failed: xend_post: error from xen daemon: (xend.err 'Device
2049 (vbd) could not be connected. /etc/xen/scripts/block failed;
error detected.') (code=11) [Tue Jan 17 12:51:05
2012][004231][EUCADEBUG ] doDescribeResource() invoked [Tue Jan 17
12:51:06 2012][004231][EUCADEBUG ] doDescribeInstances() invoked [Tue
Jan 17 12:51:06 2012][004231][EUCADEBUG ] doDescribeInstances():
instanceId=i-3BB00757 publicIp=192.168.4.165 privateIp=192.168.4.165
mac=d0:0d:3B:B0:07:57 vlan=-1 networkIndex=-1 [Tue Jan 17 12:51:06
2012][004231][EUCADEBUG ] doDescribeInstances(): instanceId=i-473807EE
publicIp=192.168.4.112 privateIp=192.168.4.112 mac=d0:0d:47:38:07:EE
vlan=-1 networkIndex=-1 [Tue Jan 17 12:51:06 2012][004231][EUCADEBUG ]
doDescribeInstances(): instanceId=i-348A06AE publicIp=0.0.0.0
privateIp=0.0.0.0 mac=d0:0d:34:8A:06:AE vlan=-1 networkIndex=-1 [Tue
Jan 17 12:51:06 2012][004231][EUCAERROR ] libvirt: POST operation
failed: xend_post: error from xen daemon: (xend.err 'Device 2049 (vbd)
could not be connected. /etc/xen/scripts/block failed; error
detected.') (code=11) [Tue Jan 17 12:51:08 2012][004231][EUCAERROR ]
libvirt: POST operation failed: xend_post: error from xen daemon:
(xend.err 'Device 2049 (vbd) could not be connected.
/etc/xen/scripts/block failed; error detected.') (code=11) [Tue Jan 17
12:51:09 2012][004231][EUCAERROR ] libvirt: POST operation failed:
xend_post: error from xen daemon: (xend.err 'Device 2051 (vbd) could
not be connected. /etc/xen/scripts/block failed; error detected.')
(code=11) [Tue Jan 17 12:51:10 2012][004231][EUCAERROR ] libvirt: POST
operation failed: xend_post: error from xen daemon: (xend.err 'Device
2051 (vbd) could not be connected. /etc/xen/scripts/block failed;
error detected.') (code=11) [Tue Jan 17 12:51:10
2012][004231][EUCAFATAL ] hypervisor failed to start domain [Tue Jan
17 12:51:10 2012][004231][EUCADEBUG ] state change for instance
i-348A06AE: Staging -> Shutoff (Extant) [Tue Jan 17 12:51:10
2012][004231][EUCAERROR ] libvirt: Domain not found:
xenUnifiedDomainLookupByName (code=42) [Tue Jan 17 12:51:10
2012][004231][EUCAINFO ] cleaning up state for instance i-348A06AE
Is this a limitation for CentOS 5.* and RedHat 5.? Is it fixed on CentOS 6.?
http://docs.vmd.citrix.com/XenServer/5.0.0/1.0/en_gb/guest.html#rhel5_limitations
"Only 3 virtual network interfaces are supported in versions below 5.2. For 5.2 and above, 7 virtual network interfaces are supported."
I opened this topic in both CentOS and Eucalyptus forums without luck:
https://www.centos.org/modules/newbb/viewtopic.php?topic_id=35491&forum=38
http://open.eucalyptus.com/forum/unable-run-more-4-instances-even-extra-resources
Thanks, Leandro
The error you are seeing seems related to disk not to network (Device 2049 (vbd) could not be connected. /etc/xen/scripts/block failed; error detected). I don't see that script on a CentOS 5.7 install I have here, so you may want to dig into that script to see if there is some obvious error.
The solution was to increase number of loop devices in CentOS 5, as detailed in the following link:
http://open.eucalyptus.com/participate/wiki/increase-number-loop-devices-centos-5
As the link is no longer valid, you have to go to archive.org or see this similar answer:
how to increase the loop devices number
Related
I am trying to create a VM using virt-manager. BUt i see
Error starting network 'default': internal error: Child process (VIR_BRIDGE_NAME=virbr0 /usr/bin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper) unexpected exit status 2:
dnsmasq: failed to bind DHCP server socket: Address already in use
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 101, in tmpcb
callback(*args, **kwargs)
File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
ret = fn(self, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/object/network.py", line 69, in start
self._backend.create()
File "/usr/lib/python3.9/site-packages/libvirt.py", line 3463, in create
raise libvirtError('virNetworkCreate() failed')
libvirt.libvirtError: internal error: Child process (VIR_BRIDGE_NAME=virbr0 /usr/bin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper) unexpected exit status 2:
dnsmasq: failed to bind DHCP server socket: Address already in use
Can anyone help me what to do now.
also checked
# journalctl -u libvirtd.service
-- Journal begins at Fri 2022-01-07 04:27:05 IST, ends at Sat 2022-01-08 11:10:46 IST. --
Jan 08 10:34:38 gauranga systemd[1]: Started Virtualization daemon.
Jan 08 11:03:20 gauranga dnsmasq[702843]: failed to bind DHCP server socket: Address already in use
Jan 08 11:03:20 gauranga dnsmasq[702843]: FAILED to start up
Jan 08 11:03:20 gauranga libvirtd[699713]: libvirt version: 7.9.0
Jan 08 11:03:20 gauranga libvirtd[699713]: hostname: gauranga
Jan 08 11:03:20 gauranga libvirtd[699713]: internal error: Child process (VIR_BRIDGE_NAME=virbr0 /usr/bin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf>
dnsmasq: failed to bind DHCP server socket: Address already in use
Jan 08 11:03:49 gauranga dnsmasq[702936]: failed to bind DHCP server socket: Address already in use
Jan 08 11:03:49 gauranga dnsmasq[702936]: FAILED to start up
Jan 08 11:03:49 gauranga libvirtd[699713]: internal error: Child process (VIR_BRIDGE_NAME=virbr0 /usr/bin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf>
dnsmasq: failed to bind DHCP server socket: Address already in use
Jan 08 11:04:10 gauranga dnsmasq[703015]: failed to bind DHCP server socket: Address already in use
Jan 08 11:04:10 gauranga dnsmasq[703015]: FAILED to start up
Jan 08 11:04:10 gauranga libvirtd[699713]: internal error: Child process (VIR_BRIDGE_NAME=virbr0 /usr/bin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf>
dnsmasq: failed to bind DHCP server socket: Address already in use
I'm trying to configure a logstash filter for an apache log errors filter definition. It is basically the 'combined' LogFormat with some additional field, here is the apache log format definition:
[11446] [Thu Jan 30 07:50:49 2020] [debug]: RT::Date used
Time::ParseDate to make '2020-01-31T07:20:46Z' 1580446800
(/app/rt4/sbin/../lib/RT/Date.pm:274)
or it could be of this format:
[Wed Jun 26 22:13:22 2013] [error] [client 10.10.10.100] PHP Fatal
error: Uncaught exception '\Foo\Bar'
I tried the below solution:
APACHE_ERROR_TIME %{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{YEAR}
APACHE_ERROR_LOG [%{APACHE_ERROR_TIME:timestamp}]
[%{LOGLEVEL:loglevel}] (?:[client %{IPORHOST:clientip}]
){0,1}%{GREEDYDATA:errormsg}
but it gives a grok_match_failure.
Please help me with a generic working pattern for the above string (meaning it should not matter even if one of the part of string is not there)
Updated Question:
So, the above worked with https://stackoverflow.com/a/59986583/4127230 and I have again got stuck with another system log string.
Can you also suggest a generic grok pattern same for the below strings:
Feb 2 18:21:14 localhost prometheus_postgres_exporter: time=\"2020-02-02T18:21:14+04:00\" level=info msg=\"Error while closing non-pinging DB connection: \" source=\"postgres_exporter.go:1001\"
and
Feb 2 05:56:10 localhost logstash: [2020-02-02T05:56:10,934][INFO ][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>6}
Using the provided APACHE_ERROR_TIME, I got a match with this pattern:
\[%{APACHE_ERROR_TIME:timestamp}\] \[%{LOGLEVEL:loglevel}\](?: \[client %{IPORHOST:clientip}\] ){0,1}%{GREEDYDATA:errormsg}
In addition to escaping the square brackets, there was some misplaced spaces that prevented the match.
For:
[11446] [Thu Jan 30 07:50:49 2020] [debug]: RT::Date used Time::ParseDate to make '2020-01-31T07:20:46Z' 1580446800 (/app/rt4/sbin/../lib/RT/Date.pm:274)
Result:
timestamp Thu Jan 30 07:50:49 2020
loglevel debug
clientip
errormsg : RT::Date used Time::ParseDate to make '2020-01-31T07:20:46Z' 1580446800 (/app/rt4/sbin/../lib/RT/Date.pm:274)
before match: [11446]
For:
[Wed Jun 26 22:13:22 2013] [error] [client 10.10.10.100] PHP Fatal error: Uncaught exception '\Foo\Bar'
Result:
timestamp Wed Jun 26 22:13:22 2013
loglevel error
clientip 10.10.10.100
errormsg PHP Fatal error: Uncaught exception '\Foo\Bar'
I followed this guide https://www.rabbitmq.com/install-debian.html and installed rabbitmq-server. However, it won't start with an error message:
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: attempted to contact: [rabbit#76672]
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: rabbit#76672:
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: * unable to connect to epmd (port 4369) on 76672: badarg (unknown POSIX error)
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: current node details:
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: - node name: 'rabbitmq-cli-30#76672'
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: - home dir: /var/lib/rabbitmq
Jul 31 20:29:49 76672.local rabbitmqctl[7519]: - cookie hash: VwJCJ/LkSvmUKaoPOglCcQ==
Jul 31 20:29:49 76672.local systemd[1]: Failed to start RabbitMQ broker.
Jul 31 20:29:49 76672.local systemd[1]: rabbitmq-server.service: Unit entered failed state.
Jul 31 20:29:49 76672.local systemd[1]: rabbitmq-server.service: Failed with result 'exit-code'.
dpkg: error processing package rabbitmq-server (--configure):
subprocess installed post-installation script returned error exit status 1
Processing triggers for systemd (229-4ubuntu17) ...
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
rabbitmq-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
altor_work#76672:
I tried to do this installation on a clear instance of Ubuntu and got the same error. I googled the error message and it seems I have some problem with network settings - I guess I should change some settings from their default state.
Any idea what needed to be changed? Or with which setting I should take my first try?
P.S. I'm completely novice in Unix. For me, it's just a cloud environment where I run my Python scripts.
I solved my problem by setting HOSTNAME in the file rabbitmq-env.conf. I don't know what exactly caused the problem in the first place.
My settings:
sudo cat /etc/hostname
76672.localhost
sudo cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 ubuntu16.04 ubuntu16
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
127.0.0.1 76672.local
/etc/rabbitmq/rabbitmq-env.conf
# Empty - if the file is empty rabbitmq doesn't start
HOSTNAME=76672.local # With this rabbitmq doesn't start either
HOSTNAME=localhost # With this all works
If it works with localhost setting only please check out the following:
fgrep BindToDevice /lib/systemd/system/epmd.socket
I have a xrdp server running and would like to connect to it using Guacamole. However, each time I try to make any RDP connection it always fails with "You Have Been Disconnected." I know it is a fault with guacamole because I can log into xRDP using Remmina RDP client using the same credentials.
Here are my Logs:
/var/run/syslog :
Jul 26 10:02:36 ubuntu guacd[1291]: Creating new client for protocol "rdp"
Jul 26 10:02:36 ubuntu guacd[1291]: Connection ID is "$0c72bf59-0ff9-448d-a5a2-dc3229157122"
Jul 26 10:02:36 ubuntu guacd[5737]: Security mode: ANY
Jul 26 10:02:36 ubuntu guacd[5737]: Resize method: none
Jul 26 10:02:36 ubuntu guacd[5737]: User "#cce2ec3d-03c5-4387-be88-054a00927f56" joined connection "$0c72bf59-0ff9-448d-a5a2-dc3229157122" (1 users now present)
Jul 26 10:02:36 ubuntu guacd[5737]: Loading keymap "base"
Jul 26 10:02:36 ubuntu guacd[5737]: Loading keymap "en-us-qwerty"
Jul 26 10:02:36 ubuntu kernel: [ 4736.455320] guacd[5749]: segfault at 8000000000 ip 0000008000000000 sp 00007f3bc9f8bc98 error 14
Jul 26 10:02:36 ubuntu kernel: [ 4736.455323] traps: guacd[5750] general protection ip:7f3bcb074c69 sp:7f3bc978ac98 error:0
Jul 26 10:02:36 ubuntu kernel: [ 4736.455323]
Jul 26 10:02:36 ubuntu kernel: [ 4736.455325] in libguac.so.5.0.0[7f3bcb070000+d000]
Jul 26 10:02:36 ubuntu guacd[1291]: Connection "$0c72bf59-0ff9-448d-a5a2-dc3229157122" removed.
/var/log/tomcat8/Catalina.out :
10:02:33.079 [http-nio-8080-exec-2] WARN o.a.g.r.auth.AuthenticationService - Authentication attempt from 0:0:0:0:0:0:0:1 for user "-------" failed.
10:02:33.943 [http-nio-8080-exec-1] WARN o.a.g.r.auth.AuthenticationService - Authentication attempt from 0:0:0:0:0:0:0:1 for user "jonathan" failed.
10:02:36.100 [http-nio-8080-exec-6] INFO o.a.g.r.auth.AuthenticationService - User "guacadmin" successfully authenticated from 0:0:0:0:0:0:0:1.
10:02:36.241 [http-nio-8080-exec-10] INFO o.a.g.tunnel.TunnelRequestService - User "guacadmin" connected to connection "3".
10:02:38.179 [Thread-7] INFO o.a.g.tunnel.TunnelRequestService - User "guacadmin" disconnected from connection "3". Duration: 1937 milliseconds
Connection settings:
security mode: any
port: 3389
I am on ubuntu server 16.04. Any possible solutions would be much appreciated.
Try:
Removing the [path to libfreerdp*.so]/freerdp/guac*.so files that were copied, assuming this is the case.
Create symbolic links within [path to libfreerdp*.so]/freerdp/ to /usr/local/lib/freerdp/guac*.so, so you do not need to worry about
this going forward.
Source: RDP stopped working v0.9.9 - Apache Guacamole.
[Thu Aug 09 11:20:30 2012] [notice] Child 4656: Child process is running
[Thu Aug 09 11:20:30 2012] [crit] (OS 10022)An invalid argument was supplied. : Child 4656: setup_inherited_listeners(), WSASocket failed to open the inherited socket.
[Thu Aug 09 11:20:30 2012] [crit] Parent: child process exited with status 3 -- Aborting.
I have started getting this error unexpectedly. I dont believe I changed any conf files.
Are there are any temporary files I can reset in the apache installation? I have moved everything from /xampp/tmp
I have checked to see if localhost:80 is in use, I dont think this is the case.
I have reset netsh as specified here: https://issues.apache.org/bugzilla/show_bug.cgi?id=31765
Please recommend steps to reset apache as I believe it is possible this is an issue caused by a orphaned PID or something of that nature as nothing has changed and I do unexpected shutdowns of my computer.
This is on Windows XP, apache httpd.exe version is 2.2.11.0
Port 443 was in use. Then magically ceased being in use. Then I guess perhaps netsh reset caused LMHOSTS to be enabled because I ended up with Local Connection being renamed to Local Connection 2 with LMHOSTS enabled. This is called magic.
Panda Media Booster was using 443.