diff options
Diffstat (limited to 'lib/kernel/doc/src/kernel_app.xml')
| -rw-r--r-- | lib/kernel/doc/src/kernel_app.xml | 58 |
1 files changed, 48 insertions, 10 deletions
diff --git a/lib/kernel/doc/src/kernel_app.xml b/lib/kernel/doc/src/kernel_app.xml index 96e3651140..956c57f7c1 100644 --- a/lib/kernel/doc/src/kernel_app.xml +++ b/lib/kernel/doc/src/kernel_app.xml @@ -8,16 +8,17 @@ <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> - The contents of this file are subject to the Erlang Public License, - Version 1.1, (the "License"); you may not use this file except in - compliance with the License. You should have received a copy of the - Erlang Public License along with this software. If not, it can be - retrieved online at http://www.erlang.org/. - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - the License for the specific language governing rights and limitations - under the License. + Licensed 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. </legalnotice> @@ -42,6 +43,7 @@ <item><c>erl_boot_server</c></item> <item><c>erl_ddll</c></item> <item><c>error_logger</c></item> + <item><c>error_logger_format_depth</c></item> <item><c>file</c></item> <item><c>global</c></item> <item><c>global_group</c></item> @@ -151,6 +153,42 @@ </item> </taglist> </item> + <tag><c>error_logger_format_depth = Depth</c></tag> + <item> + <marker id="error_logger_format_depth"></marker> + <p>This parameter can be used to limit the size of the + formatted output from the error logger event handlers.</p> + + <note><p>This configuration parameter was introduced in OTP 18.1. + It is currently experimental. Based on user feedback it + may be changed or improved in future releases, for example + to gain better control over how to limit the size of the + formatted output. We have no plans to entirely remove this + new feature, unless it turns out to be completely + useless. In OTP 19, the default may be changed to limit the + formatted output.</p></note> + + <p><c>Depth</c> is a positive integer that is the maximum + depth to which terms are printed by the error logger event + handlers included in OTP. Specifically, the two event handlers + defined by the <c>Kernel</c> application and the two event + handlers in the <c>SASL</c> application will use this + configuration parameter. (If you have implemented you own + error handlers, this configuration parameter will have no + effect on them.)</p> + + <p>The way <c>Depth</c> is used, is that format strings + string passed to the event handlers will be rewritten. + The "~p" and "~w" format controls will be replaced with + "~P" and "~W", respectively, and <c>Depth</c> will be + used as the depth parameter. See + <seealso marker="stdlib:io#format/2">io:format/2</seealso>.</p> + + <note><p>A reasonable starting value for <c>Depth</c> is + <c>30</c>. You should test crashing various processes in your + application and examine the logs from the crashes, and then + either increase or decrease the value.</p></note> + </item> <tag><c>global_groups = [GroupTuple]</c></tag> <item> <p>Defines global groups, see |