diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
| commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
| tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /doc/src/sgml/html/runtime-config-error-handling.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-13-upstream.tar.xz postgresql-13-upstream.zip | |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/runtime-config-error-handling.html')
| -rw-r--r-- | doc/src/sgml/html/runtime-config-error-handling.html | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/doc/src/sgml/html/runtime-config-error-handling.html b/doc/src/sgml/html/runtime-config-error-handling.html new file mode 100644 index 0000000..5b43eef --- /dev/null +++ b/doc/src/sgml/html/runtime-config-error-handling.html @@ -0,0 +1,43 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>19.14. Error Handling</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="prev" href="runtime-config-compatible.html" title="19.13. Version and Platform Compatibility" /><link rel="next" href="runtime-config-preset.html" title="19.15. Preset Options" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">19.14. Error Handling</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="runtime-config-compatible.html" title="19.13. Version and Platform Compatibility">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="runtime-config.html" title="Chapter 19. Server Configuration">Up</a></td><th width="60%" align="center">Chapter 19. Server Configuration</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="runtime-config-preset.html" title="19.15. Preset Options">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RUNTIME-CONFIG-ERROR-HANDLING"><div class="titlepage"><div><div><h2 class="title" style="clear: both">19.14. Error Handling</h2></div></div></div><div class="variablelist"><dl class="variablelist"><dt id="GUC-EXIT-ON-ERROR"><span class="term"><code class="varname">exit_on_error</code> (<code class="type">boolean</code>) + <a id="id-1.6.6.17.2.1.1.3" class="indexterm"></a> + </span></dt><dd><p> + If on, any error will terminate the current session. By default, + this is set to off, so that only FATAL errors will terminate the + session. + </p></dd><dt id="GUC-RESTART-AFTER-CRASH"><span class="term"><code class="varname">restart_after_crash</code> (<code class="type">boolean</code>) + <a id="id-1.6.6.17.2.2.1.3" class="indexterm"></a> + </span></dt><dd><p> + When set to on, which is the default, <span class="productname">PostgreSQL</span> + will automatically reinitialize after a backend crash. Leaving this + value set to on is normally the best way to maximize the availability + of the database. However, in some circumstances, such as when + <span class="productname">PostgreSQL</span> is being invoked by clusterware, it may be + useful to disable the restart so that the clusterware can gain + control and take any actions it deems appropriate. + </p><p> + This parameter can only be set in the <code class="filename">postgresql.conf</code> + file or on the server command line. + </p></dd><dt id="GUC-DATA-SYNC-RETRY"><span class="term"><code class="varname">data_sync_retry</code> (<code class="type">boolean</code>) + <a id="id-1.6.6.17.2.3.1.3" class="indexterm"></a> + </span></dt><dd><p> + When set to off, which is the default, <span class="productname">PostgreSQL</span> + will raise a PANIC-level error on failure to flush modified data files + to the file system. This causes the database server to crash. This + parameter can only be set at server start. + </p><p> + On some operating systems, the status of data in the kernel's page + cache is unknown after a write-back failure. In some cases it might + have been entirely forgotten, making it unsafe to retry; the second + attempt may be reported as successful, when in fact the data has been + lost. In these circumstances, the only way to avoid data loss is to + recover from the WAL after any failure is reported, preferably + after investigating the root cause of the failure and replacing any + faulty hardware. + </p><p> + If set to on, <span class="productname">PostgreSQL</span> will instead + report an error but continue to run so that the data flushing + operation can be retried in a later checkpoint. Only set it to on + after investigating the operating system's treatment of buffered data + in case of write-back failure. + </p></dd></dl></div></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="runtime-config-compatible.html" title="19.13. Version and Platform Compatibility">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="runtime-config.html" title="Chapter 19. Server Configuration">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="runtime-config-preset.html" title="19.15. Preset Options">Next</a></td></tr><tr><td width="40%" align="left" valign="top">19.13. Version and Platform Compatibility </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 19.15. Preset Options</td></tr></table></div></body></html>
\ No newline at end of file |