annotate misc/README @ 7631:b4dbf8b98f9a

Fixed premature background subrequest finalization. When "aio" or "aio threads" is used while processing the response body of an in-memory background subrequest, the subrequest could be finalized with an aio operation still in progress. Upon aio completion either parent request is woken or the old r->write_event_handler is called again. The latter may result in request errors. In either case post_subrequest handler is never called with the full response body, which is typically expected when using in-memory subrequests. Currently in nginx background subrequests are created by the upstream module and the mirror module. The issue does not manifest itself with these subrequests because they are header-only. But it can manifest itself with third-party modules which create in-memory background subrequests.
author Dmitry Volyntsev <xeioex@nginx.com>
date Mon, 02 Mar 2020 20:07:36 +0300
parents 001beb963d86
children 985b0bda403c
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7e24168b0853 nginx-0.4.0-RELEASE import
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2 make -f misc/GNUmakefile release
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4 the required tools:
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5 *) xsltproc to build CHANGES,
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001beb963d86 Documented the switch from java XSLScript to xslscript.pl.
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6 *) xslscript.pl ( http://hg.nginx.org/xslscript ) to build XSLTs
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7 from XSLScript sources.
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10 make -f misc/GNUmakefile icons
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12 the required tool:
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13 *) netpbm to create Win32 icons from xpm sources.