Logging flow deletions despite log level set to ERROR

The following logs are being logged despite the log level is set to ERROR:

2014-09-17 20:40:11,930 | INFO | qtp103994434-447 | BrokerFacade | 167 - org.opendaylight.controller.sal-rest-connector - 1.1.0.SNAPSHOT | Delete CONFIGURATION via Restconf: /(urn:opendaylight:inventory?revision=2013-08-19)nodes/node/node[

{(urn:opendaylight:inventory?revision=2013-08-19)id=openflow:7}

]/AugmentationIdentifier

{childNames=[(urn:opendaylight:flow:inventory?revision=2013-08-19)manufacturer, (urn:opendaylight:flow:inventory?revision=2013-08-19)hardware, (urn:opendaylight:flow:inventory?revision=2013-08-19)software, (urn:opendaylight:flow:inventory?revision=2013-08-19)serial-number, (urn:opendaylight:flow:inventory?revision=2013-08-19)description, (urn:opendaylight:flow:inventory?revision=2013-08-19)meter, (urn:opendaylight:flow:inventory?revision=2013-08-19)table, (urn:opendaylight:flow:inventory?revision=2013-08-19)group, (urn:opendaylight:flow:inventory?revision=2013-08-19)ip-address, (urn:opendaylight:flow:inventory?revision=2013-08-19)supported-match-types, (urn:opendaylight:flow:inventory?revision=2013-08-19)supported-instructions, (urn:opendaylight:flow:inventory?revision=2013-08-19)supported-actions, (urn:opendaylight:flow:inventory?revision=2013-08-19)switch-features]}

/(urn:opendaylight:flow:inventory?revision=2013-08-19)table/table[

{(urn:opendaylight:flow:inventory?revision=2013-08-19)id=0}

]/flow/flow[

{(urn:opendaylight:flow:inventory?revision=2013-08-19)id=309999}

]

According to the log's header (and logic), this log should only appear if the log level is info.

To reproduce, set all log levels in logback.xml to ERROR, start teh controller and run the attached performance python script with the following command line:

>python flow_config_perf.py --nflows 1000 --nthreads=10

mininet was not connected. This bug is affecting performance.