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Merge changelogs from the 2.0 branch
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Tollef Fog Heen
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Mar 10, 2010
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| Original file line number | Diff line number | Diff line change |
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <!DOCTYPE group [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <group from="2.0.1" to="2.0.2"> | ||
| <subsystem> | ||
| <name>varnishd</name> | ||
|
|
||
| <change type="bug" ref="345"> | ||
| <para>In high-load situations, when using | ||
| ESI, <code>varnishd</code> would sometimes mishandle objects and | ||
| crash. This has been worked around. </para> | ||
| </change> | ||
| </subsystem> | ||
|
|
||
| <subsystem> | ||
| <name>varnishreplay</name> | ||
|
|
||
| <change type="bug"> | ||
| <para><code>varnishreplay</code> did not work correctly on | ||
| Linux, due to a too small stack. This has now been fixed.</para> | ||
| </change> | ||
| </subsystem> | ||
| </group> |
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| @@ -0,0 +1,98 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <!DOCTYPE group [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <group from="2.0.3" to="2.0.4"> | ||
| <subsystem> | ||
| <name>varnishd</name> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make Varnish more portable by pulling in fixes for | ||
| Solaris and NetBSD.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>Correct description of -a in the manual page.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>Ensure we are compiling in C99 mode.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="458"> | ||
| <para>If error was called with a null reason, we would crash on | ||
| Solaris. Make sure this no longer happens.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="428"> | ||
| <para>Varnish used to crash if you asked it to use a | ||
| non-existent waiter. This has now been fixed.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add documentation to the default VCL explaining that | ||
| using <code>Connection: close</code> in <code>vcl_close</code> | ||
| is generally a good idea.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add minimal facility for dealing with TELNET option | ||
| negotiation by returning WONT to DO and DONT requests.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>If the backend is unhealthy, use a graced object if one is | ||
| available.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make <code>server.hostname</code> | ||
| and <code>server.identity</code> available to VCL. The latter | ||
| can be set with the <code>-i</code> parameter | ||
| to <code>varnishd</code>.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make <code>restart</code> available | ||
| from <code>vcl_error</code>.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Previously, only the TTL of an object was considered in | ||
| whether it would be marked as cacheable. This has been changed | ||
| to take the grace into consideration as well.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="445"> | ||
| <para>Previously, if an included ESI fragment had a zero size, | ||
| we would send out a zero-sized chunk which signifies | ||
| end-of-transmission. We now ignore zero-sized chunks.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>We accidentially slept for far too long when we reached | ||
| the maximum number of open file descriptors. This has been | ||
| corrected and <code>accept_fd_holdoff</code> now works | ||
| correctly.</para> | ||
| </change> | ||
| <change type="bug" ref="476"> | ||
| <para>Previously, when ESI processing, we did not look at the | ||
| full length, but stopped at the first NULL byte. We no longer | ||
| do that, enabling ESI processing of binary data.</para> | ||
| </change> | ||
| </subsystem> | ||
|
|
||
| <subsystem> | ||
| <name>varnishtest</name> | ||
| <change type="bug"> | ||
| <para>Make sure system "..." returns successfully to ensure | ||
| test failures do not go unnoticed.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make it possible to send NULL bytes through the testing | ||
| framework.</para> | ||
| </change> | ||
| </subsystem> | ||
| </group> |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,12 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <?xml-stylesheet type="text/xml" href="changes-html.xsl"?> | ||
| <!DOCTYPE changelog [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <changelog xmlns:xi="http://www.w3.org/2001/XInclude"> | ||
| <package>Varnish</package> | ||
| <version>2.0.3</version> | ||
|
|
||
| <xi:include href="changes-2.0.2-2.0.3.xml"/> | ||
| </changelog> |
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| @@ -0,0 +1,161 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <!DOCTYPE group [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <group from="2.0.4" to="2.0.5"> | ||
| <subsystem> | ||
| <name>varnishd</name> | ||
|
|
||
| <change type="bug" ref="498"> | ||
| <para>Handle object workspace overruns better.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Allow turning off ESI processing per request by using | ||
| <code>set req.esi = off</code>.</para> | ||
| </change> | ||
|
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||
| <change type="enh"> | ||
| <para>Tell the kernel that we expect to use the mmap-ed file in | ||
| a random fashion. On Linux, this turns off/down readahead and | ||
| increases performance.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make it possible to change the maximum number of HTTP | ||
| headers we allow by | ||
| passing <code>--with-max-header-fields=NUM</code> rather than | ||
| changing the code.</para> | ||
| </change> | ||
|
|
||
| <change type="enh" ref="428"> | ||
| <para>Implement support for HTTP continuation lines.</para> | ||
| </change> | ||
|
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||
| <change type="enh"> | ||
| <para>Change how connections are closed and only use SO_LINGER | ||
| for orderly connection closure. This should hopefully make | ||
| worker threads less prone to hangups on network problems.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="502"> | ||
| <para>Handle multi-element purges correctly. Previously we | ||
| ended up with parse errors when this was done from VCL.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="506, 549"> | ||
| <para>Handle illegal responses from the backend better by | ||
| serving a 503 page rather than panic-ing.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>When we run into an assertion that is not true, Varnish | ||
| would previously dump a little bit of information about itself. | ||
| Extend that information with a backtrace. Note that this relies | ||
| on the varnish binary being unstripped.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add a session_max parameter that limits the maximum | ||
| number of sessions we keep open before we start dropping new | ||
| connections summarily.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>Try to consume less memory when doing ESI processing by | ||
| properly rolling back used workspace after processing an | ||
| object. This should make it possible to | ||
| turn <code>sess_workspace</code> quite a bit for users with | ||
| ESI-heavy pages.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Turn on <code>session_linger</code> by default. Tests | ||
| have shown that <code>session_linger</code> helps a fair bit | ||
| with performance.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Rewrite the epoll acceptor for better performance. This | ||
| should lead to both higher processing rates and maximum number | ||
| of connections on Linux.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add If-None-Match support, this gives significant | ||
| bandwidth savings for users with compliant browsers.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="529"> | ||
| <para>RFC2616 specifies | ||
| that <code>ETag</code>, <code>Content-Location</code>, <code>Expires</code>, <code>Cache-Control</code> | ||
| and <code>Vary</code> should be emitted when delivering a | ||
| response with the 304 response code.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="531"> | ||
| <para>Various fixes which makes Varnish compile and work on AIX.</para> | ||
| </change> | ||
|
|
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| <change type="enh"> | ||
| <para>Turn on TCP_DEFER_ACCEPT on Linux. This should make us | ||
| less suspecible to denial of service attacks as well as give us | ||
| slightly better performance.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add an <code>.initial</code> property to the backend | ||
| probe specification. This is the number of good probes we | ||
| pretend to have seen. The default is one less than .threshold, | ||
| which means the first probe will decide if we consider the | ||
| backend healthy.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Make it possible to compare strings against other | ||
| string-like objects, not just plain strings. This allows you to | ||
| compare two headers, for instance.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>When support for <code>restart</code> | ||
| in <code>vcl_error</code> was added, there was no check to | ||
| prevent infinte recursion. This has now been fixed. | ||
| </para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Turn on purge_dups by default. This should make us | ||
| consume less memory when there are many bans for the same | ||
| pattern added.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Add a new log tag called <code>FetchError</code> which | ||
| tries to explain why we could not fetch an object from the | ||
| backend.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>Change the default <code>srcaddr_ttl</code> to 0. It is | ||
| not used by anything and has been removed in the development | ||
| version. This will increase performance somewhat.</para> | ||
| </change> | ||
|
|
||
| </subsystem> | ||
|
|
||
| <subsystem> | ||
| <name>varnishtop</name> | ||
| <change type="bug" ref="514"> | ||
| <para>varnishtop did not handle variable-length log fields | ||
| correctly. This is now fixed.</para> | ||
| </change> | ||
|
|
||
| <change type="enh"> | ||
| <para>varnishtop previously did not print the name of the tag, | ||
| which made it very hard to understand. We now print out the | ||
| tag name.</para> | ||
| </change> | ||
| </subsystem> | ||
| </group> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <!DOCTYPE group [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <group from="2.0.5" to="2.0.6"> | ||
| <subsystem> | ||
| <name>varnishd</name> | ||
|
|
||
| <change type="bug" ref="585"> | ||
| <para>2.0.5 had an off-by-one error in the ESI handling causing | ||
| includes to fail a large part of the time. This has now been | ||
| fixed.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="584"> | ||
| <para>Try harder to not confuse backends when sending them | ||
| backend probes. We half-closed the connection, something some | ||
| backends thought meant we had dropped the connection. Stop | ||
| doing so, and add the capability for specifying the expected | ||
| response code.</para> | ||
| </change> | ||
|
|
||
| <change type="bug"> | ||
| <para>In 2.0.5, session lingering was turned on. This caused | ||
| statistics to not be counted often enough in some cases. This | ||
| has now been fixed.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="547"> | ||
| <para>Avoid triggering an assert if the other end closes the | ||
| connection while we are lingering and waiting for another | ||
| request from them.</para> | ||
| </change> | ||
|
|
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| <change type="bug" ref="577"> | ||
| <para>When generating backtraces, prefer the built-in backtrace | ||
| function if such exists. This fixes a problem compiling 2.0.5 | ||
| on Solaris.</para> | ||
| </change> | ||
|
|
||
| <change type="enh" ref="572"> | ||
| <para>Make it possible to specify the per-thread stack size. | ||
| This might be useful on 32 bit systems with their limited | ||
| address space.</para> | ||
| </change> | ||
|
|
||
| <change type="bug" ref="559"> | ||
| <para>Document the <code>-C</code> option | ||
| to <code>varnishd</code>.</para> | ||
| </change> | ||
| </subsystem> | ||
| </group> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <?xml-stylesheet type="text/xml" href="changes-html.xsl"?> | ||
| <!DOCTYPE changelog [ | ||
| <!ENTITY mdash "—"> | ||
| ]> | ||
| <!-- $Id$ --> | ||
| <changelog xmlns:xi="http://www.w3.org/2001/XInclude"> | ||
| <package>Varnish</package> | ||
| <version>2.0.5</version> | ||
|
|
||
| <xi:include href="changes-2.0.4-2.0.5.xml"/> | ||
| </changelog> |
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