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Diffstat (limited to 'doc/bugs/Large_unannex_operations_result_in_stale_symlinks_and_data_loss.mdwn')
| -rw-r--r-- | doc/bugs/Large_unannex_operations_result_in_stale_symlinks_and_data_loss.mdwn | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/doc/bugs/Large_unannex_operations_result_in_stale_symlinks_and_data_loss.mdwn b/doc/bugs/Large_unannex_operations_result_in_stale_symlinks_and_data_loss.mdwn deleted file mode 100644 index 2629a7d56..000000000 --- a/doc/bugs/Large_unannex_operations_result_in_stale_symlinks_and_data_loss.mdwn +++ /dev/null @@ -1,57 +0,0 @@ -## What steps will reproduce the problem? - -Take a large sub-directory in a repository (e.g. `ccash`) with some files within, - - $ tar -xzf ccash.tar.gz - $ du -sh ccash - 59M ccash - $ ls -l ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - -rw-r--r-- 1 dietz dietz 1748 Jul 27 2011 ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java - -rw-r--r-- 1 dietz dietz 313898 May 22 18:36 ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - -Annex it, - - $ git annex add ccash - ... - $ ls -l ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - lrwxrwxrwx 1 dietz dietz 215 Jul 27 2011 ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java -> ../../../../../../../../../../../.git/annex/objects/mv/zf/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486 - lrwxrwxrwx 1 dietz dietz 210 Jul 27 2011 ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar -> ../../../../../../../../.git/annex/objects/8G/gQ/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73 - -Unannex it (before or after committing), - - $ git annex unannex ccash - -Note that some fraction of the files will still be symbolic links, now pointing to non-existent files. This data has apparently been lost forever. - - $ ls -l ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - -rw-r--r-- 1 dietz dietz 1748 Jul 27 2011 ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java - lrwxrwxrwx 1 dietz dietz 210 Jul 27 2011 ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar -> ../../../../../../../../.git/annex/objects/8G/gQ/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73 - -It is unclear why some files are affected while others are not. That being said, unannexing small numbers of files at a time appears to avoid the issue, - - $ tar -zxf ccash.tar.gz - $ git annex add ccash - $ ls -l ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - lrwxrwxrwx 1 dietz dietz 215 Jul 27 2011 ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java -> ../../../../../../../../../../../.git/annex/objects/mv/zf/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486 - lrwxrwxrwx 1 dietz dietz 210 Jul 27 2011 ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar -> ../../../../../../../../.git/annex/objects/8G/gQ/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73/SHA256-s313898--593552ffea3c5823c6602478b5002a7c525fd904a3c44f1abe4065c22edfac73 - $ git annex unannex ccash/trunk/DataProvider/WebContent/WEB-INF - ... - $ ls -l ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - lrwxrwxrwx 1 dietz dietz 215 Jul 27 2011 ccash/trunk/annotationinterface/src/edu/byu/nlp/annotationinterface/java/BasicAnnotation.java -> ../../../../../../../../../../../.git/annex/objects/mv/zf/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486/SHA256-s1748--5c0d1cbf104214b6d0ab85c53a85cadb975ec208f42a7b33a76d85e175352486 - -rw-r--r-- 1 dietz dietz 313898 Jul 27 2011 ccash/trunk/DataProvider/WebContent/WEB-INF/lib/dom4j.jar - -For this reason, it seems likely this is due to some sort of race condition. - - -## What version of git-annex are you using? On what operating system? - -This is on Ubuntu 12.04 with git-annex revision a1e2bc4. - - -> There was no good soluton to this, so I picked a bad one that -> will not have users complainging git-annex ate their data. -> They will complain that `git annex unannex` is slow since it now copies -> the file, and perhaps instead use --fast, and hopefully avoid destroying -> their own data by editing the resulting hard links. -> -> [[done]] --[[Joey]] |