leveldb is required. What filesystem are you using that doesn't support
mmap?
On 02/07/2013 02:11 PM, sheng qiu wrote:
Is it possible comment the leveldb setup codes during mkfs call path?
i find the problem is because i am trying to use a bunch of memory as
the OSD, when the leveldb mmap() the file on OSD, it failed, as the
file actually located on memory.
Thanks,
Sheng
On Thu, Feb 7, 2013 at 2:53 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
On Thu, Feb 7, 2013 at 12:42 PM, sheng qiu <herbert1984106@xxxxxxxxx> wrote:
Hi Dan,
thanks for your reply.
after some code tracking, i found it failed at this point :
in file leveldb/db/db_impl.cc --> NewDB()
log::Writer log(file);
std::string record;
new_db.EncodeTo(&record);
s = log.AddRecord(record);
if (s.ok()) {
fprintf(test, "NewDB: 2\n");
s = file->Close();
}else
fprintf(test, "NewDB: 2.5\n");
the log.AddRecord return s which is not ok().
can you provide some hint why it fails? i am reading the AddRecord()
function now.
LevelDB is a generic library which we don't develop. My understanding
is that it's expected to work on any POSIX-compliant filesystem, but
you can check out the docs
(http://leveldb.googlecode.com/svn/trunk/doc/index.html) or source
code for more info.
-Greg
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