| //// |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License |
| //// |
| |
| // This module is included in the following assemblies: |
| // |
| // troubleshooting.adoc |
| |
| [id='viewing-log-entries-{context}'] |
| = Viewing log entries |
| |
| You may need to view log entries to diagnose errors, performance problems, and other important issues. A log entry consists of an optional timestamp, the logging module, the logging level, and the log message. |
| |
| .Procedure |
| |
| * Do one of the following: |
| |
| ** View log entries on the console. |
| + |
| By default, events are logged to the console, and you can view them there. However, if the `output` attribute is set for a particular logging module, then you can find those log entries in the specified location (`stderr`, `syslog`, or a file). |
| |
| ** Use the *`qdstat --log`* command to view recent log entries. |
| + |
| -- |
| You can use the `--limit` parameter to limit the number of log entries that are displayed. For more information about `qdstat`, see {qdstatManPageLink}. |
| |
| This example displays the last three log entries for `Router.A`: |
| |
| [options="nowrap",subs="+quotes"] |
| ---- |
| $ qdstat --log --limit=3 -r ROUTER.A |
| Wed Jun 7 17:49:32 2019 ROUTER (none) Core action 'link_deliver' |
| Wed Jun 7 17:49:32 2019 ROUTER (none) Core action 'send_to' |
| Wed Jun 7 17:49:32 2019 SERVER (none) [2]:0 -> @flow(19) [next-incoming-id=1, incoming-window=61, next-outgoing-id=0, outgoing-window=2147483647, handle=0, delivery-count=1, link-credit=250, drain=false] |
| ---- |
| -- |
| |
| .Additional resources |
| |
| * For more information about configuring logging modules, see xref:configuring-default-logging-{context}[]. |
