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dump/restore of a fs with 100 of millions hardlinks

 
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Old 11-12-2009
dump/restore of a fs with 100 of millions hardlinks
Hi :-)

i have a dump of a backupdisk (~540GB / ext3). The Backups have some 100 millions of hardlinks (backups are created with storeBackup). The OS is linux.

A restore of a directory ended after some days with the errormessage "no memory to extend symbol table"

The restore of the complete filesystem ended with a restore af 8GB data and the message Out of Memory: Kill process 2618 (restore) score 73 and children. Out of memory: Killed process 2618 (restore)."

The testsystem has a debian minimal installation and 650MB Ram. Of course I can try it on an other system and wait some days until I have maybe the same message.

An interactive Restore crashed after some days of waiting :-(

codeexample how I restore the whole FS
# restore rd -f filename.dump
in the /tmp dir, the rstdirfile is 5.7 GB and the rstmode file 560M. Here I have the out of memory problem

codeexample how I restore one directory (with all the files)
# restore -x daten -f filename.dmp
here I have the "no memory to extend symbol table" problem ...

First question: is dump/restore aible to handle this numbers of files?
2nd question: if yes, what I make wrong?

greeting from berlin
turricum
 
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LEARN ABOUT DEBIAN

notmuch-restore

NOTMUCH-RESTORE(1)					      General Commands Manual						NOTMUCH-RESTORE(1)

NAME

       notmuch-restore - Restores the tags from the given file (see notmuch dump).

SYNOPSIS

       notmuch restore [--accumulate] [ <filename> ]

DESCRIPTION

       Restores the tags from the given file (see notmuch dump).

       The input is read from the given filename, if any, or from stdin.

       Note:  The dump file format is specifically chosen to be compatible with the format of files produced by sup-dump.  So if you've previously
       been using sup for mail, then the notmuch restore command provides you a way to import all of your tags (or labels as sup calls them).

       The --accumulate switch causes the union of the existing and new tags to be applied, instead of replacing each message's tags as  they  are
       read in from the dump file.

       See notmuch-search-terms(7) for details of the supported syntax for <search-terms>.

       notmuch	restore  updates  the maildir flags according to tag changes if the maildir.synchronize_flags configuration option is enabled. See
       notmuch-config(1) for details.

SEE ALSO

       notmuch(1), notmuch-config(1), notmuch-count(1), notmuch-dump(1), notmuch-hooks(5),  notmuch-new(1),  notmuch-reply(1),	notmuch-search(1),
       notmuch-search-terms(7), notmuch-show(1), notmuch-tag(1)

Notmuch 0.13.2							    2012-06-01							NOTMUCH-RESTORE(1)