110e377026
o Repeated POST requests causes number of persistent connections to grow synopsis If responses to POST or other non-indempotent requests allows the connection to be kept persistently open then this can lead to a increased connection usage by Squid. This patch changes the behaviour to keep the number of connections stable by closing a persistent connection before opening the new connection. severity Minor date 2003-12-13 16:13 bugzilla #862 versions Squid-2.5 platforms All workaround Disable server-side persistent connections by setting "server_persistent_connections off" in squid.conf. o Segmentation fault on aborted FTP PUT requests synopsis If a FTP PUT request is aborted while Squid is writing data to the server then Squid may abort with a segmentation fault. severity Major date 2003-12-14 12:14 bugzilla #853 versions Squid-2.5 and earlier platforms All workaround If this plauges you a lot then you can deny the use of FTP PUT until the server can be patched. But please note that this will limit the functionality of the proxy by not allowing FTP uploads via the proxy. acl FTP protocol FTP acl PUT method PUT http_access deny FTP PUT o Limit use of persistent connections when filedescriptor usage is high synopsis Under high usage a lot of filedescriptors may be idle persistent connections, causing a shortage of filedescriptors for handling new requests. severity Minor date 2003-12-14 12:14 bugzilla #571 versions Squid-2.5 and earlier platforms All workaround Disable the use of persistent connections in squid.conf. But pleae note that disabling persistent connections will cause a networking performance penalty unless you are actually short on filedescriptors. Alternatively rebuild Squid with support for more filedescriptors. o Icon URLs are uneededly complex synopsis The URL syntax used by Squid for FTP/Gopher icons are uneededly complex and often causes problems. This patch adds a "short_icon_urls" directive which can be used to enable a less complex URL syntax for icons. severity Cosmetic date 2003-12-14 13:14 bugzilla #856 versions Squid-2.5 and earlier platforms All o redirector_access does not handle slow acls such as dst or external correctly synopsis redirector_access was a "fast" acl lookup and did not handle "slow" acls requiring external lookups such as dst or external correcly. severity Minor date 2003-12-14 13:14 bugzilla #860 versions Squid-2.5 and earlier platforms All o Persistent connection usage too high after sudden burst of traffic synopsis Persistent server connections are reused in a round-robin fashion which may cause the number of connections to stay artificially high after a sudden burst of requests. This patch changes persistent connection management to use a LIFO order reusing the most recently used connection first, thereby allowing unneeded connections to close down by idle timeout. severity Minor date 2003-12-15 23:15 bugzilla #865 versions Squid-2.5 and earlier platforms All workaround This usually is not a significant problem, but if you are plauged by this you can try disabling server-side persistent connections in squid.conf. |
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