3.2 KiB

Raw Permalink Blame History

oslogmerger

What is oslogmerger?

oslogmerger stands for OpenStack LOG merger, it's a tool designed to take a bunch of openstack logs across different projects, and merge them in a single file, ordered by time entries.

It should work as long as the logs are based on oslo logger output.

Limitations

This tool is not able to properly (or meaningfully) merge logs if your servers are not time synced to a common source.

This is a naive implementation, not smart at all, instead of runtime comparing input dates as they come from log files, we create a big memory list with all log lines, sort them, and spite them out. This can be improved.

How to install

pip install oslogmerger

How to use it

oslogmerger ../bz/1257567/40-os1ctrl01/var/log/neutron/server.log:NS1 \
            ../bz/1257567/50-os1ctrl02/var/log/neutron/server.log:NS2 \
            ../bz/1257567/40-os1ctrl01/var/log/neutron/openvswitch-agent.log:OVS1 \
            ../bz/1257567/50-os1ctrl02/var/log/neutron/openvswitch-agent.log:OVS2

Please note that the :NS1, :NS2, :OVS1, :OVS2 are aliases and can be omitted, and in such case, the extra column used to associate a log file to a log line will use the original file path instead of the [ALIAS]

The previous example would produce something like this:

2015-08-25 09:37:15.463000 [NS1] 15062 DEBUG neutron.context [req-b751a750-f5d8-4b6e-9af3-82d143ef9416 None] Arguments dropped when creating context: {u'project_name': None, u'tenant': None} __init__ /usr/lib/python2.7/site-packages/neutron/context.py:83
2015-08-25 09:37:15.463000 [NS1] 15062 DEBUG neutron.plugins.ml2.db [req-b751a750-f5d8-4b6e-9af3-82d143ef9416 None] get_ports_and_sgs() called for port_ids [u'4136d577-e02f-47c1-b543-f0bfd65ef85e', u'5d5ea109-4807-4df3-bef4-b5d89c3ffebc', u'6adcffbf-09d5-4a85-9339-9d6beb2bf82c', u'6b4d7b51-c87d-483e-9606-0e2a54ad8184', u'743ccaa6-7ed9-4195-aabd-3d55006338e1', u'dc662767-61a5-4807-b2ed-a7c76b541fd6', u'4decdd33-6f13-46df-b2f0-d9ff99878514', u'34b826df-9787-443c-9bef-084374827a85', u'7bbc404b-3df7-498a-b6fb-e81f9370a19f', u'c12e6e06-ff6a-44dc-b75f-78ec55dd3dd3', u'586cd86d-59d0-434b-ab27-76975ce5abc4', u'79b33879-3232-4b3a-a27c-c0a79da10379', u'ba6a28cc-9851-4cd7-acae-40034a19c761', u'05c4115a-da58-41db-b3f7-7326e1a22971'] get_ports_and_sgs /usr/lib/python2.7/site-packages/neutron/plugins/ml2/db.py:224
2015-08-25 09:37:15.463000 [OVS1] 12613 DEBUG neutron.agent.linux.utils [req-588c942a-6526-464f-a447-782a5e2d436a None]
                                    Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--timeout=10', 'list-ports', 'br-int']
                                    Exit code: 0
                                    Stdout: 'ha-2cdba01d-e4\nha-44dca3a9-44\nha-499d3db7-97\nha-55a19f5e-ef\nha-b2d04f15-f2\nha-b5b271a1-d8\nha-fa58d644-81\nint-br-enp7s0\nint-br-ex\nqr-34b826df-97\nqr-5d5ea109-48\nqr-6adcffbf-09\nqr-743ccaa6-7e\nqr-79b33879-32\nqr-c12e6e06-ff\nqr-dc662767-61\n'

References to http url files instead of local files is also supported. Files will be cached locally to avoid re-downloading on next runs.