jplevyak:svn [55] % make
CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh
/home/jplevyak/projects/ts/svn/build/aux/missing --run aclocal-1.11 -I build
cd . && /bin/sh /home/jplevyak/projects/ts/svn/build/aux/missing --run
automake-1.11 --foreign
configure.ac:1185: required file `proxy/config/ssd_storage.config.default.in'
not found
You might be missing a file...
john
On Thu, Apr 21, 2011 at 8:41 AM, 张练 <[email protected]> wrote:
> John, i submitted my patch to
> https://issues.apache.org/jira/browse/TS-745, thank for your help.
>
> On Thu, Apr 21, 2011 at 5:29 AM, John Plevyak <[email protected]> wrote:
>
> > Looking at that web page, I can't see the code. If you post it I can
> > take a look. The problem is complicated by the fact that deletion
> > on sata is implicit to some extent because documents are lost
> > as the write pointer crosses over them. However because they
> > are scavenged from the directory, it is possible to recover some of
> > the CacheKey for deleted sata Dir entries. If your SSD directory
> > is strictly smaller it may be possible to recover enough of the necessary
> > bits
> > of the sata dir key to conservatively delete the 'head' Dir entries on
> the
> > SSD which are
> > deleted on the sata drives.
> >
> > In any case, seeing the code would be helpful.
> >
> > john
> >
> >
> > On Tue, Apr 19, 2011 at 8:08 AM, 张练 <[email protected]> wrote:
> >
> > > Hello, recently i have written a patch for supporting ssd, see
> > > https://cwiki.apache.org/TS/ssdsupport.html.
> > > My logic is like following:
> > > (1) If not hit in cache, then request from os, and write the
> response
> > to
> > > sata
> > > (2) If hit in sata, and need to write content to ram_cache, then
> write
> > > it to ssd also
> > > (3) When CacheProcessor::open_read, it first read in ssd, and if not
> > > probe hit in ssd, then read in sata
> > > I surround my codes with
> > > #ifdef CACHE_SSD
> > > ....
> > > #endif
> > > and to ease the coding work, the patch support only for following
> > > situation: one ssd plus several sata.
> > > Now we are testing this patch, first step is to test it works as
> > expect.
> > > We write a script to infinite send lots of request for urls, and then
> > send
> > > purge command, and then again requests and so on. The result
> > > shows that it works as we expect. Next step we will test the
> performance
> > of
> > > this patch.
> > > Now i have encounter a problem, when ./configure --enable-debug, it
> > will
> > > crash after some minutes, the error message is fail assert, in function
> > > CacheVC::handleReadDone of iocore/cache/Cache.cc, line
> "ink_assert(((Doc
> > *)
> > > buf->data())->magic == DOC_MAGIC);" I am tracing the bug, and i want to
> > > reproduce this scene again. I am thinking if my following logic is
> right
> > or
> > > wrong:
> > > When the object is stored in both ssd and sata, but staled, ts will
> > get
> > > the object from os and write it to sata. In this situation, i delete
> the
> > > Dir
> > > in ssd related with that staled object. I don't know when staled in
> > current
> > > cache, if or not ts delete the staled object?
> > > I will be appreciated for your advices. If you think i need to
> submit
> > my
> > > patch right now and you help me to review the codes, then tell me(I
> think
> > > the codes is ugly to simplify the coding load:( )
> > >
> > >
> > > --
> > > Best regards,
> > > Lian Zhang(mohan_zl)
> > >
> >
>
>
>
> --
> Best regards,
> Lian Zhang
>
