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Commit 51fea0fa authored by Tollef Fog Heen's avatar Tollef Fog Heen
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Document changes from 2.0.6 to 2.1 

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4634 d4fa192b-c00b-0410-8231-f00ffab90ce4
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doc/Makefile.am
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# $Id$
CHANGELOGS = \
changes-2.1.0.html \
changes-2.0.6.html \
changes-2.0.5.html \
changes-2.0.4.html \
......@@ -14,6 +15,7 @@ CHANGELOGS = \
changes-1.0.4.html
XML = \
changes-2.0.6-2.1.0.xml \
changes-2.0.5-2.0.6.xml \
changes-2.0.4-2.0.5.xml \
changes-2.0.3-2.0.4.xml \
......
doc/changes-2.0.6-2.1.0.xml 0 → 100644
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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE group [
<!ENTITY mdash "&#8212;">
]>
<!-- $Id$ -->
<group from="2.0.6" to="2.1.0">
<subsystem>
<name>varnishd</name>
<change type="enh">
<para>Persistent storage is now experimentally supported using
the <code>persistent</code> stevedore. It has the same command
line arguments as the file stevedore.</para>
</change>
<change type="enh">
<para><code>obj.*</code> is now called <code>beresp.*</code>
in <code>vcl_fetch</code>, and <code>obj.*</code> is now
read-only.</para>
</change>
<change type="enh">
<para>The regular expression engine is now PCRE instead of POSIX
regular expressions.</para>
</change>
<change type="enh">
<para><code>req.*</code> is now available
in <code>vcl_deliver</code>.</para>
</change>
<change type="enh">
<para>Add saint mode where we can attempt to grace an object if
we don't like the backend response for some reason.</para>
<para>Related, add <code>saintmode_threshold</code> which is the
threshold for the number of objects to be added to the trouble
list before the backend is considered sick.</para>
</change>
<change type="enh">
<para>Add a new hashing method called critbit. This autoscales
and should work better on large object workloads than the
classic hash. Critbit has been made the default hash algorithm.</para>
</change>
<change type="enh">
<para>When closing connections, we experimented with sending RST
to free up load balancers and free up threads more quickly.
This caused some problems with NAT routers and so has been
reverted for now.
</change>
<change type="enh">
<para>Add thread that checks objects against ban list in order
to prevent ban list from growing forever. Note that this
needs purges to be written so they don't depend
on <code>req.*</code>. Enabled by
setting <code>ban_lurker_sleep</code> to a nonzero
value.</para>
</change>
<change type="enh">
<para>The shared memory log file format was limited to maximum
64k simultaneous connections. This is now a 32 bit field which
removes this limitation.</para>
</change>
<change type="enh">
<para>Remove obj_workspace, this is now sized automatically.
</para>
</change>
<change type="enh">
<para>Rename acceptors to waiters</para>
</change>
<change type="enh">
<para><code>vcl_prefetch</code> has been removed. It was never
fully implemented.</para>
</change>
<change type="enh">
<para>Add support for authenticating CLI connections.</para>
</change>
<change type="enh">
<para>Add hash director that chooses which backend to use
depending on <code>req.hash</code>.</para>
</change>
<change type="enh">
<para>Add client director that chooses which backend to use
depending on the client's IP address. Note that this ignores
the <code>X-Forwarded-For</code> header.</para>
</change>
<change type="enh">
<para><code>varnishd</code> now displays a banner by default
when you connect to the CLI.</para>
</change>
<change type="enh">
<para>Increase performance somewhat by moving statistics
gathering into a per-worker structure that is regularly
flushed to the global stats.</para>
</change>
<change type="enh">
<para>Make sure we store the header and body of object together.
This may in some cases improve performance and is needed for
persistence.</para>
</change>
<change type="enh">
<para>Remove client-side address accounting. It was never used
for anything and presented a performance problem.</para>
</change>
<change type="enh">
<para>Add a timestamp to bans, so you can know how old they are.</para>
</change>
<change type="enh">
<para>Quite a few people got confused over the warning about not
being able to lock the shared memory log into RAM, so stop
warning about that.</para>
</change>
<change type="enh" ref="329">
<para>Change the default CLI timeout to 10 seconds.</para>
</change>
<change type="bug" ref="444">
<para>We previously forced all inserts into the cache to be GET
requests. This has been changed to allow POST as well in
order to be able to implement purge-on-POST semantics.</para>
</change>
<change type="enh">
<para>The CLI command <code>stats</code> now only lists non-zero
values.</para>
</change>
<change type="enh">
<para>The CLI command <code>stats</code> now only lists non-zero
values.</para>
</change>
<change type="enh">
<para>Use <code>daemon(3)</code> from <code>libcompat</code> on
Darwin.</para>
</change>
<change type="enh">
<para>Remove <code>vcl_discard</code> as it causes too much
complexity and never actually worked particularly well.</para>
</change>
<change type="enh">
<para>Remove <code>vcl_timeout</code> as it causes too much
complexity and never actually worked particularly well.</para>
</change>
<change type="enh">
<para>Update the documentation so it refers
to <code>sess_workspace</code>, not <code>http_workspace</code>.</para>
</change>
<change type="enh">
<para>Document the <code>-i</code> switch
to <code>varnishd</code> as well as
the <code>server.identity</code>
and <code>server.hostname</code> VCL variables.</para>
</change>
<change type="enh">
<para><code>purge.hash</code> is now deprecated and no longer
shown in help listings.</code>.</para>
</change>
<change type="enh" ref="607">
<para>When processing ESI, replace the five mandatory XML
entities when we encounter them.</para>
</change>
<change type="enh">
<para>Add string representations of time and relative
time.</para>
</change>
<change type="bug" ref="604">
<para>Add locking for <code>n_vbe_conn</code> to make it stop
underflowing.</para>
</change>
<change type="bug" ref="207">
<para>When ESI-processing content, check for illegal XML
character entities.</para>
</change>
<change type="bug" ref="207">
<para>Varnish can now connect its CLI to a remote instance when
starting up, rather than just being connected to.</para>
</change>
<change type="enh">
<para>It is no longer needed to specify the maximum number of
HTTP headers to allow from backends. This is now a run-time
parameter.</para>
</change>
<change type="enh" ref="601, 540">
<para>The <code>X-Forwarded-For</code> header is now generated
by <code>vcl_recv</code> rather than the C code.</para>
</change>
<change type="enh">
<para>It is now possible to not send all CLI traffic to
syslog.</para>
</change>
<change type="enh">
<para>It is now possible to not send all CLI traffic to
syslog.</para>
</change>
<change type="enh">
<para>In the case of varnish crashing, it now outputs a
identifying string with the OS, OS revision, architecture and
storage parameters together with the backtrace.</para>
</change>
<change type="enh">
<para>Use exponential backoff when we run out of file
descriptors or sessions.</para>
</change>
<change type="enh" ref="635">
<para>Allow setting backend timeouts to zero.</para>
</change>
<change type="enh">
<para>Count uptime in the shared memory log.</para>
</change>
<change type="enh" ref="620">
<para>Try to detect the case of two running varnishes with the
same shmlog and storage by writing the master and child process
ids to the shmlog and refusing to start if they are still
running.</para>
</change>
<change type="bug" ref="524">
<para>Make sure to use EOF mode when serving ESI content to
HTTP/1.0 clients.</para>
</change>
<change type="bug" ref="495">
<para>Make sure we close the connection if it either
sends <code>Connection: close</code> or it is a HTTP/1.0
backend that does not send <code>Connection:
keep-alive</code>.</para>
</change>
<change type="enh">
<para>Increase the default session workspace to 64k on 64-bit
systems.</para>
</change>
<change type="bug" ref="644">
<para>Make the <code>epoll</code> waiter use level triggering,
not edge triggering as edge triggering caused problems on very
busy servers.</para>
</change>
<change type="bug" ref="626">
<para>Handle unforeseen client disconnections better on Solaris.</para>
</change>
<change type="enh">
<para>Make session lingering apply to new sessions, not just
reused sessions.</para>
</change>
</subsystem>
<subsystem>
<name>varnishstat</name>
<change type="enh">
<para>Make use of the new uptime field in the shared memory log
rather than synthesizing it from the start time.</para>
</change>
</subsystem>
<subsystem>
<name>varnishlog</name>
<change type="enh">
<para>Exit at the end of the file when started
with <code>-d</code>.</para>
</change>
varnishadm:
- timeout support
- secret support
- handle cli banner
</group>
doc/changes-2.1.0.xml 0 → 100644
View file @ 51fea0fa
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/xml" href="changes-html.xsl"?>
<!DOCTYPE changelog [
<!ENTITY mdash "&#8212;">
]>
<!-- $Id: changes-2.0.xml 4602 2010-03-01 11:30:43Z phk $ -->
<changelog xmlns:xi="http://www.w3.org/2001/XInclude">
<package>Varnish</package>
<version>2.1</version>
<xi:include href="changes-2.0.6-2.1.0.xml"/>
</changelog>
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