Re: problem in cephfs for remove empty directory

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Hi John and Gregory,

The version of ceph client is 0.87 and the kernel is 3.13.

The debug logs here in attach.

I see this problem in a older kernel, but i didn't find the solution in the track.

Thanks,

Att.

---
Daniel Takatori Ohara.
System Administrator - Lab. of Bioinformatics
Molecular Oncology Center 
Instituto Sírio-Libanês de Ensino e Pesquisa
Hospital Sírio-Libanês
Phone: +55 11 3155-0200 (extension 1927)
R: Cel. Nicolau dos Santos, 69
São Paulo-SP. 01308-060
http://www.bioinfo.mochsl.org.br


On Tue, Mar 3, 2015 at 2:26 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
On Tue, Mar 3, 2015 at 9:24 AM, John Spray <john.spray@xxxxxxxxxx> wrote:
> On 03/03/2015 14:07, Daniel Takatori Ohara wrote:
>
> $ls test-daniel-old/
> total 0
> drwx------ 1 rmagalhaes BioInfoHSL Users            0 Mar  2 10:52 ./
> drwx------ 1 rmagalhaes BioInfoHSL Users 773099838313 Mar  2 11:41 ../
>
> $rm -rf test-daniel-old/
> rm: cannot remove ‘test-daniel-old/’: Directory not empty
>
> $ls test-daniel-old/
> ls: cannot access
> test-daniel-old/M_S8_L001_R1-2_001.fastq.gz_ref.sam_fixed.bam: No such file
> or directory
> ls: cannot access
> test-daniel-old/M_S8_L001_R1-2_001.fastq.gz_sylvio.sam_fixed.bam: No such
> file or directory
> ls: cannot access
> test-daniel-old/M_S8_L002_R1-2_001.fastq.gz_ref.sam_fixed.bam: No such file
> or directory
> ls: cannot access
> test-daniel-old/M_S8_L002_R1-2_001.fastq.gz_sylvio.sam_fixed.bam: No such
> file or directory
> ls: cannot access
> test-daniel-old/M_S8_L003_R1-2_001.fastq.gz_ref.sam_fixed.bam: No such file
> or directory
> ls: cannot access
> test-daniel-old/M_S8_L003_R1-2_001.fastq.gz_sylvio.sam_fixed.bam: No such
> file or directory
> ls: cannot access
> test-daniel-old/M_S8_L004_R1-2_001.fastq.gz_ref.sam_fixed.bam: No such file
> or directory
> ls: cannot access
> test-daniel-old/M_S8_L004_R1-2_001.fastq.gz_sylvio.sam_fixed.bam: No such
> file or directory
> total 0
> drwx------ 1 rmagalhaes BioInfoHSL Users            0 Mar  2 10:52 ./
> drwx------ 1 rmagalhaes BioInfoHSL Users 773099838313 Mar  2 11:41 ../
> l????????? ? ?          ?                           ?            ?
> M_S8_L001_R1-2_001.fastq.gz_ref.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L001_R1-2_001.fastq.gz_sylvio.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L002_R1-2_001.fastq.gz_ref.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L002_R1-2_001.fastq.gz_sylvio.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L003_R1-2_001.fastq.gz_ref.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L003_R1-2_001.fastq.gz_sylvio.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L004_R1-2_001.fastq.gz_ref.sam_fixed.bam
> l????????? ? ?          ?                           ?            ?
> M_S8_L004_R1-2_001.fastq.gz_sylvio.sam_fixed.bam
>
> You don't say what version of the client (version of kernel, if it's the
> kernel client) this is.  It would appear that the client thinks there are
> some dentries that don't really exist.  You should enable verbose debug logs
> (with fuse client, "debug client = 20") and reproduce this.  It looks like
> you had similar issues (subject: "problem for remove files in cephfs") a
> while back, when Yan Zheng also advised you to get some debug logs.

In particular this is a known bug in older kernels and is fixed in new
enough ones. Unfortunately I don't have the bug link handy though. :(
-Greg

Attachment: log_mds.gz
Description: GNU Zip compressed data

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