hi:
stack
MAX_SEQ_ID_KEY is in the StoreFile.java of package
org.apache.hadoop.hbase.regionserver.....Sorry ,i do not known exactly the
version of my hbase.
2009/8/19 stack <[email protected]>
> Oops. Sorry. Answered wrong question.
>
> I grepped source in 0.19 and 0.20 branches and don't see MAX_SEQ_ID_KEY.
> Where are you seeing that?
>
> Thanks,
> St.Ack
>
>
>
> On Tue, Aug 18, 2009 at 9:43 AM, stack <[email protected]> wrote:
>
> > On each edit, a sequence id is incremented. When edits are applied to
> the
> > commit log their sequence id is noted along with the entry. When we
> flush,
> > the sequence id of the flushed edits are noted in the flush/store file.
> The
> > regionserver will let go of commit logs (hlogs in hbase parlance) if all
> its
> > edits have been flushed to the filesystem. It uses the sequence id
> figuring
> > when it can do this. Sequence id is also used figuring which of a set of
> > flush/store files is the newer (the file denoted by the larger sequence
> id
> > will be newer) among other things.
> >
> > Does this help?
> >
> > St.Ack
> >
> >
> > On Tue, Aug 18, 2009 at 3:18 AM, chunping rao <[email protected]>
> wrote:
> >
> >> hi:
> >> all
> >> in the source code of hbase-0.20.0,i can't understand the use of the
> >> attribute "MAX_SED_ID_KEY" ,what is the role of "MAX_SEQ_ID_KEY"?
> >>
> >
> >
>
