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2014-12-25 10:05:40 -0500 asked a question what is difference between openstack and devstack

Can some body give me brief explonation about devstack and what it does as per my knowledge i know only some part of it , it will provide scripts to install any openstack services , am i correct in this. I'm just beginer only in openstack so i have this doubt , can some one please help me out in giving detail description of devstack and what is difference between devstack and openstack.

2014-12-25 09:53:09 -0500 asked a question how openstack provides security

how openstack provides security

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2014-09-25 06:34:50 -0500 asked a question Nova fails to attach a volume to instance (file not found)

i'm trying to attach volume to the instance while booting up through the following command.

root@aachuthakvm001:~# nova boot --image de01023e-8b91-4fa6-8369-1062116ed56c --flavor 1 --key-name mykey --block-device source=volume,id=055c1a1d-0132-4931-9179-5286abaa8aef,dest=volume,shutdown=preserve test-boot-instance01

i got this command from this http://docs.openstack.org/user-guide/...

above command executed successfully without syntax errors but status of the instance is error on the dashboard and in the /var/log/nova/nova-compute i have the following errors.

014-09-25 16:11:53.570 26439 ERROR nova.virt.libvirt.driver [-] Getting disk size of instance-00000003: [Errno 2] No such file or directory: '/var/lib/nova/instances/4f9f8509-b3df-4e0b-af85-cf95c02f1865/disk'

i was resynced the database again i tried but it is not helpful .

any help more thankful to him

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2014-08-23 01:15:22 -0500 commented answer Unable to launch new instance and nova boot command is failing with below error

Thank you very anand i also faced the above problem i followed your steps that's it done. thank you very much

2014-08-18 23:26:06 -0500 commented question could not open /dev/net/tun: Operation not permitted

yes i'm running the opens vswitch and i'm also using vlan

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2014-08-18 23:19:31 -0500 commented answer Remove Istance with Error status

by stopping the services in nova threre is no damage but in production environment it will be a mistake?

2014-08-18 23:17:57 -0500 commented answer Remove Istance with Error status

hi foexle you are right in testing environment it will works but in production environment it is not the right way could you post your configuration files of nova.

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2014-08-18 01:13:13 -0500 answered a question Remove Istance with Error status

stop all services and delete the database again start all the services one by one . you can able to delete.

2014-08-18 01:02:56 -0500 asked a question could not open /dev/net/tun: Operation not permitted

I configured Neutron and all configurations are good and kept all the configurations related to neutron in nova also according to the official install guide. I'm running the opens vswitch and i'm also using vlan.

after configuring the nova and neutron i'm unable to get the instane booting up there after i checked the log files both in neutron and nova the log files are as follows:

aachutha@aachuthakvm001:~$ tail -f /var/log/nova/nova-scheduler.log
2014-08-18 10:02:06.956 2198 INFO nova.openstack.common.rpc.common [req-79a173d4-0b52-48e3-9daf-2eb3120ac35a None None] Reconnecting to AMQP server on 10.192.3.25:5672
2014-08-18 10:02:11.971 2198 ERROR nova.openstack.common.rpc.common [req-79a173d4-0b52-48e3-9daf-2eb3120ac35a None None] AMQP server on 10.192.3.25:5672 is unreachable: timed out. Trying again in 30 seconds.
2014-08-18 10:02:41.984 2198 INFO nova.openstack.common.rpc.common [req-79a173d4-0b52-48e3-9daf-2eb3120ac35a None None] Reconnecting to AMQP server on 10.192.3.25:5672
2014-08-18 10:02:41.997 2198 INFO nova.openstack.common.rpc.common [req-79a173d4-0b52-48e3-9daf-2eb3120ac35a None None] Connected to AMQP server on 10.192.3.25:5672
2014-08-18 10:46:52.406 2198 INFO nova.scheduler.filter_scheduler [req-2eadc06f-0d45-49ce-9b6b-07e1ab51a097 42750aff5f0c46ed9d2625c3b5884bfd 83927c7558df437a82620719704212c9] Attempting to build 1 instance(s) uuids: [u'ea407439-5a64-4dcd-98fd-61cfae41fb93']
2014-08-18 10:46:52.416 2198 INFO nova.scheduler.filter_scheduler [req-2eadc06f-0d45-49ce-9b6b-07e1ab51a097 42750aff5f0c46ed9d2625c3b5884bfd 83927c7558df437a82620719704212c9] Choosing host WeighedHost [host: aachuthakvm001, weight: 15197.0] for instance ea407439-5a64-4dcd-98fd-61cfae41fb93
2014-08-18 10:46:52.597 2198 INFO nova.openstack.common.rpc.common [req-2eadc06f-0d45-49ce-9b6b-07e1ab51a097 42750aff5f0c46ed9d2625c3b5884bfd 83927c7558df437a82620719704212c9] Connected to AMQP server on 10.192.3.25:5672
2014-08-18 10:47:10.336 2198 INFO nova.scheduler.filter_scheduler [req-2eadc06f-0d45-49ce-9b6b-07e1ab51a097 42750aff5f0c46ed9d2625c3b5884bfd 83927c7558df437a82620719704212c9] Attempting to build 1 instance(s) uuids: [u'ea407439-5a64-4dcd-98fd-61cfae41fb93']
2014-08-18 10:47:10.337 2198 ERROR nova.scheduler.filter_scheduler [req-2eadc06f-0d45-49ce-9b6b-07e1ab51a097 42750aff5f0c46ed9d2625c3b5884bfd 83927c7558df437a82620719704212c9] [instance: ea407439-5a64-4dcd-98fd-61cfae41fb93] Error from last host: aachuthakvm001 (node aachuthakvm001): [u'Traceback (most recent call last):\n', u'  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1043, in _build_instance\n    set_access_ip=set_access_ip)\n', u'  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1426, in _spawn\n    LOG.exception(_(\'Instance failed to spawn\'), instance=instance)\n', u'  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1423, in _spawn\n    block_device_info)\n', u'  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2091, in spawn\n    block_device_info, context=context)\n', u'  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 3249, in _create_domain_and_network\n    domain = self._create_domain(xml, instance=instance, power_on=power_on)\n', u'  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 3192, in _create_domain\n    domain.XMLDesc(0))\n', u'  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 3187, in _create_domain\n    domain.createWithFlags(launch_flags)\n', u'  File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 179, in doit\n    result = proxy_call(self._autowrap, f, *args, **kwargs)\n', u'  File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 139, in proxy_call\n    rv = execute ...
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2014-08-12 13:27:01 -0500 answered a question nova-compute connecting amqp local

In the above config file you configured two rabbitmq hosts only one needed and it can be run in any of services of openstack or it can be run on the other node vm also

2014-08-12 13:22:32 -0500 answered a question delete VM but still see it running in compute node

delete the database what you are using in the compute node and again sync it.

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2014-07-29 00:33:57 -0500 answered a question nova logs growing indefinitely

take the bakup of the logs in controller node(keystone) and remove logs so that you can have enough space in controller node.

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2014-07-09 23:47:11 -0500 answered a question Unable to connect to AMQP server: [Errno 111] ECONNREFUSED. Sleeping 5 seconds

Hi Anad,

 My rabbitmq is working fine.
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2014-07-09 23:29:53 -0500 commented answer fedora19 No package openstack-selinux available.

Thank you sir for your reply actually for installing of nova component this package is not needed in fedora19 and i have to try to install this package in fedora 20

2014-07-09 23:11:12 -0500 answered a question fedora19 No package openstack-selinux available.

I solved this one there is no need of this package

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2014-07-09 04:30:50 -0500 asked a question Unable to connect to AMQP server: [Errno 111] ECONNREFUSED. Sleeping 5 seconds

in fedora while starting the scheduler service in nova i got messages like this when i gave tail -f /var/log/nova/scheduler.log

2014-07-09 15:00:16.117 9486 DEBUG qpid.messaging.io.raw [-] OPEN[403a680]: localhost:5672 connect /usr/lib/python2.7/site-packages/qpid/messaging/driver.py:528 2014-07-09 15:00:16.122 9486 ERROR nova.openstack.common.rpc.impl_qpid [req-97e0ab94-031c-4da8-a5f5-11f06103be9c None None] Unable to connect to AMQP server: [Errno 111] ECONNREFUSED. Sleeping 5 seconds

2014-07-08 07:37:43 -0500 asked a question fedora19 No package openstack-selinux available.

I tried like this.

[root@localhost ~]# yum install openstack-selinux
Loaded plugins: priorities
132 packages excluded due to repository priority protections
No package openstack-selinux available.
Error: Nothing to do

how to resolve this any help.

2013-12-12 23:39:31 -0500 asked a question Getting error for token-get in keystone

Could any one tell solve my issue. I've configured keystone and services and endpoints. Later i got token for user also. When I type the following I'm getting like following: root@openstackvm00:~# keystone token-get 'Client' object has no attribute 'service_catalog'

My environment variables are: #export SERVICE_TOKEN=ADMIN_OPENSTACK

export SERVICE_ENDPOINT=http://localhost:35357/v2.0

2013-12-12 23:17:01 -0500 asked a question how to install openstack dashboard on ubuntu

I'm very new to the openstack able to install keystone successfully after that i want to install dashboard i.e horizon to implement that one what keysteps i have to follow i followed the document in the openstack documents but unable to get the some lines in local_settings.py file.

Thank for any help