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Posted to common-user@hadoop.apache.org by 闫昆 <ya...@gmail.com> on 2013/07/26 08:09:43 UTC
dncp_block_verification
Hi All
the datanode directory in crrunt like follow
dncp_block_verification.log.prev
dncp_block_verification.log.curr
what this log function?
Re: dncp_block_verification
Posted by 闫昆 <ya...@gmail.com>.
Viji R thank you very much
2013/7/26 Viji R <vi...@cloudera.com>
> Hi,
>
> These are used to keep block IDs that are being verified, i.e., DN
> periodically matches blocks with stored checksums to root out
> corrupted or rotted data. They are removed once verification
> completes.
>
> Regards,
> Viji
>
> On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> > Hi All
> > the datanode directory in crrunt like follow
> > dncp_block_verification.log.prev
> > dncp_block_verification.log.curr
> > what this log function?
>
Re: dncp_block_verification
Posted by 闫昆 <ya...@gmail.com>.
Viji R thank you very much
2013/7/26 Viji R <vi...@cloudera.com>
> Hi,
>
> These are used to keep block IDs that are being verified, i.e., DN
> periodically matches blocks with stored checksums to root out
> corrupted or rotted data. They are removed once verification
> completes.
>
> Regards,
> Viji
>
> On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> > Hi All
> > the datanode directory in crrunt like follow
> > dncp_block_verification.log.prev
> > dncp_block_verification.log.curr
> > what this log function?
>
Re: dncp_block_verification
Posted by 闫昆 <ya...@gmail.com>.
Viji R thank you very much
2013/7/26 Viji R <vi...@cloudera.com>
> Hi,
>
> These are used to keep block IDs that are being verified, i.e., DN
> periodically matches blocks with stored checksums to root out
> corrupted or rotted data. They are removed once verification
> completes.
>
> Regards,
> Viji
>
> On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> > Hi All
> > the datanode directory in crrunt like follow
> > dncp_block_verification.log.prev
> > dncp_block_verification.log.curr
> > what this log function?
>
Re: dncp_block_verification
Posted by 闫昆 <ya...@gmail.com>.
Viji R thank you very much
2013/7/26 Viji R <vi...@cloudera.com>
> Hi,
>
> These are used to keep block IDs that are being verified, i.e., DN
> periodically matches blocks with stored checksums to root out
> corrupted or rotted data. They are removed once verification
> completes.
>
> Regards,
> Viji
>
> On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> > Hi All
> > the datanode directory in crrunt like follow
> > dncp_block_verification.log.prev
> > dncp_block_verification.log.curr
> > what this log function?
>
Re: dncp_block_verification
Posted by Viji R <vi...@cloudera.com>.
Hi,
These are used to keep block IDs that are being verified, i.e., DN
periodically matches blocks with stored checksums to root out
corrupted or rotted data. They are removed once verification
completes.
Regards,
Viji
On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> Hi All
> the datanode directory in crrunt like follow
> dncp_block_verification.log.prev
> dncp_block_verification.log.curr
> what this log function?
Re: dncp_block_verification
Posted by Viji R <vi...@cloudera.com>.
Hi,
These are used to keep block IDs that are being verified, i.e., DN
periodically matches blocks with stored checksums to root out
corrupted or rotted data. They are removed once verification
completes.
Regards,
Viji
On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> Hi All
> the datanode directory in crrunt like follow
> dncp_block_verification.log.prev
> dncp_block_verification.log.curr
> what this log function?
Re: dncp_block_verification
Posted by Viji R <vi...@cloudera.com>.
Hi,
These are used to keep block IDs that are being verified, i.e., DN
periodically matches blocks with stored checksums to root out
corrupted or rotted data. They are removed once verification
completes.
Regards,
Viji
On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> Hi All
> the datanode directory in crrunt like follow
> dncp_block_verification.log.prev
> dncp_block_verification.log.curr
> what this log function?
Re: dncp_block_verification
Posted by Viji R <vi...@cloudera.com>.
Hi,
These are used to keep block IDs that are being verified, i.e., DN
periodically matches blocks with stored checksums to root out
corrupted or rotted data. They are removed once verification
completes.
Regards,
Viji
On Fri, Jul 26, 2013 at 11:39 AM, 闫昆 <ya...@gmail.com> wrote:
> Hi All
> the datanode directory in crrunt like follow
> dncp_block_verification.log.prev
> dncp_block_verification.log.curr
> what this log function?