[Qemu-devel] [Bug 603878] [NEW] [Feature request] qemu-img option about recompressing

[Qemu-devel] [Bug 603878] [NEW] [Feature request] qemu-img option about recompressing

[Коренберг Марк]

Public bug reported:

Suppose I have a fresh compressed qcow2 image. After some time the data
were recorded without compression. I decide to make "QEMU-IMG convert"
for that image to reduce its size.

I want a new option, which selects between the two algorithms overdriven images:
1. extract all / compress again when converting images (in the current implementation)
2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

This option is only needed when converting compressed image to
compressed and the compression algorithm is the same.

** Affects: qemu
     Importance: Undecided
         Status: New

-- 
[Feature request] qemu-img option about recompressing
https://bugs.launchpad.net/bugs/603878
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Status in QEMU: New

Bug description:
Suppose I have a fresh compressed qcow2 image. After some time the data were recorded without compression. I decide to make "QEMU-IMG convert" for that image to reduce its size.

I want a new option, which selects between the two algorithms overdriven images:
1. extract all / compress again when converting images (in the current implementation)
2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

This option is only needed when converting compressed image to compressed and the compression algorithm is the same.

[Qemu-devel] [Bug 603878] Re: [Feature request] qemu-img option about recompressing

[Коренберг Марк]

(text was translated by translate.google.com)
overdriven=re-compressing
recorded=written

-- 
[Feature request] qemu-img option about recompressing
https://bugs.launchpad.net/bugs/603878
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.

Status in QEMU: New

Bug description:
Suppose I have a fresh compressed qcow2 image. After some time the data were recorded without compression. I decide to make "QEMU-IMG convert" for that image to reduce its size.

I want a new option, which selects between the two algorithms overdriven images:
1. extract all / compress again when converting images (in the current implementation)
2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

This option is only needed when converting compressed image to compressed and the compression algorithm is the same.

[Qemu-devel] [Bug 603878] Re: [Feature request] qemu-img option about recompressing

[Thomas Huth]

** Changed in: qemu
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/603878

Title:
  [Feature request] qemu-img option about recompressing

Status in QEMU:
  New

Bug description:
  Suppose I have a fresh compressed qcow2 image. After some time the
  data were recorded without compression. I decide to make "QEMU-IMG
  convert" for that image to reduce its size.

  I want a new option, which selects between the two algorithms overdriven images:
  1. extract all / compress again when converting images (in the current implementation)
  2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

  This option is only needed when converting compressed image to
  compressed and the compression algorithm is the same.

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[Bug 603878] Re: [Feature request] qemu-img option about recompressing

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience.


** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/603878

Title:
  [Feature request] qemu-img option about recompressing

Status in QEMU:
  Incomplete

Bug description:
  Suppose I have a fresh compressed qcow2 image. After some time the
  data were recorded without compression. I decide to make "QEMU-IMG
  convert" for that image to reduce its size.

  I want a new option, which selects between the two algorithms overdriven images:
  1. extract all / compress again when converting images (in the current implementation)
  2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

  This option is only needed when converting compressed image to
  compressed and the compression algorithm is the same.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/603878/+subscriptions

[Bug 603878] Re: [Feature request] qemu-img option about recompressing

[Коренберг Марк]

** Changed in: qemu
       Status: Incomplete => New

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https://bugs.launchpad.net/bugs/603878

Title:
  [Feature request] qemu-img option about recompressing

Status in QEMU:
  New

Bug description:
  Suppose I have a fresh compressed qcow2 image. After some time the
  data were recorded without compression. I decide to make "QEMU-IMG
  convert" for that image to reduce its size.

  I want a new option, which selects between the two algorithms overdriven images:
  1. extract all / compress again when converting images (in the current implementation)
  2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

  This option is only needed when converting compressed image to
  compressed and the compression algorithm is the same.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/603878/+subscriptions

[Bug 603878] Re: [Feature request] qemu-img option about recompressing

[Thomas Huth]

This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:

 https://gitlab.com/qemu-project/qemu/-/issues/81


** Changed in: qemu
       Status: New => Expired

** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #81
   https://gitlab.com/qemu-project/qemu/-/issues/81

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https://bugs.launchpad.net/bugs/603878

Title:
  [Feature request] qemu-img option about recompressing

Status in QEMU:
  Expired

Bug description:
  Suppose I have a fresh compressed qcow2 image. After some time the
  data were recorded without compression. I decide to make "QEMU-IMG
  convert" for that image to reduce its size.

  I want a new option, which selects between the two algorithms overdriven images:
  1. extract all / compress again when converting images (in the current implementation)
  2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.

  This option is only needed when converting compressed image to
  compressed and the compression algorithm is the same.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/603878/+subscriptions