Bazaar

bzr: ERROR: No such file: .../.bzr/repository/indices/...rix

Bug #819964 reported by Jean-Paul Calderone on 2011-08-02

This bug affects 6 people

Affects		Status	Importance	Assigned to	Milestone
	Bazaar	Confirmed	High	Unassigned

Bug Description

The "bzr pull" processes launched by this script:

    mkdir hosta
    mkdir hostb
    cd hosta/
    mkdir project
    bzr init project
    cd project
    touch content
    bzr add content
    bzr commit -m 'initial setup'
    cd ../../hostb/
    bzr init-repo .
    bzr branch ../hosta/project/ one
    bzr branch ../hosta/project/ two
    for i in `seq 1000`; do
      pushd ../hosta/project;
      echo $i > content;
      bzr commit content -m 'update';
      popd;
      (cd one; bzr pull) & (cd two; bzr pull) & wait;
    done

will eventually begin to fail with messages like:

bzr: ERROR: No such file: u'/tmp/bzrbug/hostb/.bzr/repository/indices/17cc87340f0e835ce4ce99f32292482b.rix': [Errno 2] No such file or directory: u'/tmp/bzrbug/hostb/.bzr/repository/indices/17cc87340f0e835ce4ce99f32292482b.rix'

Once the error occurs, it appears to be a permanent problem with the repository.

Tags:

Revision history for this message

Martin Pool (mbp) wrote on 2011-08-04:

Thanks very much for the clear reproduction recipe.

Just to help dedupe this, do you have a traceback from .bzr.log when this happens?

Changed in bzr:
importance:	Undecided → High
status:	New → Confirmed

Martin Pool (mbp) on 2011-08-04

tags:

added: affects-twisted crash repository

Revision history for this message

Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

Portion of .bzr.log from the time of the unhandled exception Edit (14.8 KiB, text/plain)

Revision history for this message

Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

.bzr.log after reproducing the problem with 2.4b5 Edit (14.4 KiB, text/plain)

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Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

If I replace the lines:

bzr branch ../hosta/project/ one
bzr branch ../hosta/project/ two

with something that uses the bzr+ssh transport instead, such as:

bzr branch bzr+ssh://localhost/~/bzrtest/hosta/project/ one
bzr branch bzr+ssh://localhost/~/bzrtest/hosta/project/ two

Then the error changes to:

bzr: ERROR: No such file: u'/home/exarkun/bzrtest/hostb/.bzr/repository/indices/a2c8bdbf13d1c0d81330863f2d3d2657.six': [Errno 2] No such file or directory: u'/home/exarkun/bzrtest/hostb/.bzr/repository/indices/a2c8bdbf13d1c0d81330863f2d3d2657.six'

Associated .bzr.log portion attached.

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Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

ENOENT with bzr+ssh on bzr 2.3.4 Edit (10.5 KiB, text/plain)

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Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

The problem with the bzr+ssh usage is reproducable on 2.4b5 as well, log attached.

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Jean-Paul Calderone (exarkun) wrote on 2011-08-04:

ENOENT with bzr+ssh on bzr 2.4b5 Edit (17.9 KiB, text/plain)

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Ramesh Maddali (ramesh-maddali) wrote on 2012-06-04:

Hi,

When can we expect a solution for this issue, as its hitting us quite consistently.

thanks,
ramesh

Revision history for this message

John A Meinel (jameinel) wrote on 2012-06-05: Re: [Bug 819964] Re: bzr: ERROR: No such file: .../.bzr/repository/indices/...rix

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On 6/4/2012 8:27 AM, Ramesh Maddali wrote:
> Hi,
>
> When can we expect a solution for this issue, as its hitting us
> quite consistently.
>
> thanks, ramesh
>

I wasn't actually able to reproduce this. Though I'm running on
Windows, and filesystem concurrency works differently there. I tried
in a VM, but that only has a single CPU, so there isn't as much
concurrency.

Martin, you posted on this earlier, are you able to reproduce a .rix
failure with newer versions of bzr?

Offhand this looks like a "2 independent bzr processes introduce the
same data into the repository while an autopack triggers".

John
=:->

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