[Sync EN] Restructure persistent connections chapter#251
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Brings features/persistent-connections.xml up to date with the upstream
rewrite (EN-Revision ee5ee84013f11aaaf01b09484bc9aa3225379748):
- Page is restructured into named <simplesect> blocks instead of one
long flow: Was sind persistente Verbindungen?, Web-Anfragen,
Kommandozeilen-Prozesse, Wozu sie verwenden?, Mögliche Nachteile
(Verbindungslimits, Verwaltung des Verbindungszustands),
Schlussbemerkungen, Siehe auch.
- New CLI section explains that command-line PHP does not share
persistent connections between invocations.
- New note about phpinfo / PHP_SAPI to check the Server API and which
values ("Apache 2 Handler", "FPM/FastCGI") actually keep
persistent connections alive.
- Drawbacks section expanded: explicit list of connection-state items
to clean up (selected database, table locks, uncommitted transactions,
temporary tables, profiling-style settings), guidance on connection
limits with PHP-FPM workers, cleanup via destructors or
register_shutdown_function().
- New final-words section recommending alternatives such as fixing
connection-creation overheads (e.g. reverse DNS), dedicated connection
pooling proxies, or long-running application servers for high-volume
APIs.
- See-also block converted to a proper simplelist with all the
_pconnect functions plus MySQLi and PDO connection-management links.
- The obsolete IIS/NSAPI/WebSite-Pro paragraph is dropped (matches EN).
- The obsolete <!-- $Revision$ --> SVN marker is dropped.
Existing Maintainer (hholzgra) and Credits (tom) are kept.
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Bringt
features/persistent-connections.xmlauf den Stand von upstream doc-en (ee5ee84013). Die englische Seite wurde von einem langen Fließtext in benannte<simplesect>-Blöcke umstrukturiert.Neue Sektionsstruktur:
Was sind persistente Verbindungen?(Intro mit<simplelist>der drei nicht-Anwendungsfälle)Web-Anfragen(mit<note>zuphpinfo/PHP_SAPIund den WertenApache 2 Handler/FPM/FastCGI)Kommandozeilen-Prozesse(neu: erklärt, dass CLI-PHP keine persistenten Verbindungen zwischen Aufrufen teilt)Wozu sie verwenden?Mögliche Nachteile: Verbindungslimits(Worker-Anzahl, Timeouts)Mögliche Nachteile: Verwaltung des Verbindungszustands(neue<simplelist>: aktive Datenbank, Tabellensperren, offene Transaktionen, temporäre Tabellen, verbindungsspezifische Einstellungen)Schlussbemerkungen(neu: Empfehlung alternativer Lösungen wie Behebung des Verbindungs-Overheads, Connection-Pooling-Proxies, langlaufende Anwendungsserver)Siehe auch(jetzt vollständige<simplelist>mit allen_pconnect-Funktionen plus MySQLi- und PDO-Verbindungs-Links)Weitere Änderungen:
<!-- $Revision$ -->-SVN-Marker wurde entfernt.Bestehender
Maintainer:(hholzgra) undCredits(tom) wurden beibehalten.