[openstack-dev] Tip: jsonformatter site for parsing/debugginglogs

Mariam John mariamj at us.ibm.com
Thu Jan 21 16:46:48 UTC 2016

Thank you Matt & Doug for sharing this tip. Definitely very helpful.

Have a nice day.


From:	Doug Hellmann <doug at doughellmann.com>
To:	openstack-dev <openstack-dev at lists.openstack.org>
Date:	01/21/2016 10:38 AM
Subject:	Re: [openstack-dev] Tip: jsonformatter site for
            parsing/debugging	logs

Excerpts from Matt Riedemann's message of 2016-01-21 10:09:32 -0600:
> Are you tired of trying to strain your eyes to parse something like this
> in the logs [1]?
> vif=VIF({'profile': {}, 'ovs_interfaceid':
> u'ac3ca8e7-c22d-4f63-9620-ce031bf3eaac', 'preserve_on_delete': False,
> 'network': Network({'bridge': u'br-int', 'subnets': [Subnet({'ips':
> [FixedIP({'meta': {}, 'version': 4, 'type': u'fixed', 'floating_ips':
> [], 'address': u''})], 'version': 4, 'meta': {u'dhcp_server':
> u''}, 'dns': [], 'routes': [], 'cidr': u'',
> 'gateway': IP({'meta': {}, 'version': None, 'type': u'gateway',
> 'address': None})})], 'meta': {u'injected': False, u'tenant_id':
> u'1d760ac487e24e06add18dacefa221a1'}, 'id':
> u'b13e9828-2bd9-4fb4-a20d-a92e2a8c1a77', 'label':
> u'tempest-network-smoke--1979535575'}), 'devname': u'tapac3ca8e7-c2',
> 'vnic_type': u'normal', 'qbh_params': None, 'meta': {}, 'details':
> {u'port_filter': True, u'ovs_hybrid_plug': True}, 'address':
> u'fa:16:3e:0c:d3:95', 'active': False, 'type': u'ovs', 'id':
> u'ac3ca8e7-c22d-4f63-9620-ce031bf3eaac', 'qbg_params': None}
> I found https://jsonformatter.curiousconcept.com/ which is nice since
> you can just copy that json from the logs and paste it into the text
> area and format it (I disable validation).

You can also do this using Python's json module from the command line:

$ echo '{"json":"obj"}' | python -m json.tool
  "json": "obj"


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