[Bug 1507244] Re: Missing erasure coding plugins for jerasure/neon and shec

[James Page]

vivid build now ships the neon optimized jerasure backend:

drwxr-xr-x root/root         0 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/
-rw-r--r-- root/root    432144 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/libec_jerasure.so
-rw-r--r-- root/root    628888 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/libec_jerasure_generic.so
-rw-r--r-- root/root    637080 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/libec_jerasure_neon.so
-rw-r--r-- root/root   1796144 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/libec_lrc.so
-rw-r--r-- root/root    649368 2015-11-12 14:48 ./usr/lib/aarch64-linux-gnu/ceph/erasure-code/libec_shec.so

** Tags removed: verification-needed
** Tags added: verification-done

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Title:
  Missing erasure coding plugins for jerasure/neon and shec

Status in ceph package in Ubuntu:
  Fix Released
Status in ceph source package in Vivid:
  Fix Committed
Status in ceph source package in Wily:
  Fix Committed
Status in ceph source package in Xenial:
  Fix Released

Bug description:
  [Impact]
  Neon optimized jerasure plugin is built but not included in packages; this results in use of the un-optimized jerasure plugin in this use case.

  Likewise the SHEC based plugin is built, but not shipped.

  A number of dangling symlinks are also installed in the ceph package.

  [Test Case]
  sudo apt-get install ceph
  ls -l /usr/lib/*/ceph/erasure-code
     <missing libec_jerasure_neon.so>
     <missing libec_shec.so>
     dangling symlinks.

  [Regression Potential]
  Minimal; The proposed fix just ensures that the missing plugins are built with a unversioned .so extension, and drops the dangling symlinks from the install.

  [Original Bug Report]
  ceph_0.94.3-0ubuntu0.15.04.1_armhf.deb does not include the following libraries in /usr/lib/arm-linux-gnueabihf/ceph/erasure-code

  libec_example.so.0.0.0
  libec_fail_to_initialize.so.0.0.0
  libec_fail_to_register.so.0.0.0
  libec_hangs.so.0.0.0
  libec_jerasure_neon.so.2.0.0
  libec_missing_entry_point.so.0.0.0
  libec_missing_version.so.0.0.0
  libec_shec.so.1.0.0
  libec_test_jerasure_generic.so.0.0.0
  libec_test_jerasure_neon.so.0.0.0
  libec_test_jerasure_sse3.so.0.0.0
  libec_test_jerasure_sse4.so.0.0.0

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