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authorBjörn Gustavsson <[email protected]>2015-06-15 11:52:18 +0200
committerBjörn Gustavsson <[email protected]>2015-06-15 11:52:18 +0200
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Merge branch 'bjorn/mnesia/doc'
* bjorn/mnesia/doc: Update asn1 documentation
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-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE chapter SYSTEM "chapter.dtd">
-
-<chapter>
- <header>
- <copyright>
- <year>1997</year><year>2013</year>
- <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.
-
- </legalnotice>
-
- <title>Appendix A: Mnesia Error Messages</title>
- <prepared>Claes Wikstr&ouml;m, Hans Nilsson and H&aring;kan Mattsson</prepared>
- <responsible>Bjarne D&auml;cker</responsible>
- <docno></docno>
- <approved>Bjarne D&auml;cker</approved>
- <checked>Bjarne D&auml;cker</checked>
- <date>96-11-20</date>
- <rev>B</rev>
- <file>Mnesia_App_A.xml</file>
- </header>
- <p>Whenever an operation returns an error in Mnesia, a description
- of the error is available. For example, the functions
- <c>mnesia:transaction(Fun)</c>, or <c>mnesia:create_table(N,L)</c>
- may return the tuple <c>{aborted, Reason}</c>, where <c>Reason</c>
- is a term describing the error. The following function is used to
- retrieve more detailed information about the error:
- </p>
- <list type="bulleted">
- <item><c>mnesia:error_description(Error)</c></item>
- </list>
-
- <section>
- <title>Errors in Mnesia</title>
- <p>The following is a list of valid errors in Mnesia.</p>
- <list type="bulleted">
- <item><c>badarg</c>. Bad or invalid argument, possibly bad type.
- </item>
- <item><c>no_transaction</c>. Operation not allowed outside transactions.
- </item>
- <item><c>combine_error</c>. Table options were illegally combined.
- </item>
- <item><c>bad_index</c>. Index already exists, or was out of bounds.
- </item>
- <item><c>already_exists</c>. Schema option to be activated is already on.
- </item>
- <item><c>index_exists</c>. Some operations cannot be performed on tables with an index.
- </item>
- <item><c>no_exists</c>.; Tried to perform operation on non-existing (non-alive) item.
- </item>
- <item><c>system_limit</c>.; A system limit was exhausted.
- </item>
- <item><c>mnesia_down</c>. A transaction involves records on a
- remote node which became unavailable before the transaction
- was completed. Record(s) are no longer available elsewhere in
- the network.</item>
- <item><c>not_a_db_node</c>. A node was mentioned which does not exist in the schema.</item>
- <item><c>bad_type</c>.; Bad type specified in argument.</item>
- <item><c>node_not_running</c>. Node is not running.</item>
- <item><c>truncated_binary_file</c>. Truncated binary in file.</item>
- <item><c>active</c>. Some delete operations require that all active records are removed.</item>
- <item><c>illegal</c>. Operation not supported on this record.</item>
- </list>
- <p>The following example illustrates a function which returns an error, and the method to retrieve more detailed error information.
- </p>
- <p>The function <c>mnesia:create_table(bar, [{attributes, 3.14}])</c> will return the tuple <c>{aborted,Reason}</c>, where <c>Reason</c> is the tuple
- <c>{bad_type,bar,3.14000}</c>.
- </p>
- <p>The function <c>mnesia:error_description(Reason)</c>, returns the term
- <c>{"Bad type on some provided arguments",bar,3.14000}</c> which is an error
- description suitable
- for display.</p>
- </section>
-</chapter>
-