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Add defrag docs, fix trace message

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This commit is contained in:
Vitaliy Filippov
2024-07-13 00:45:53 +03:00
parent 413959e75a
commit b4e9140755
4 changed files with 80 additions and 14 deletions
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src/nfs/nfs_kv_defrag.cpp
+4 -2
View File
@@ -139,8 +139,10 @@ void kv_fs_defrag_t::handle_read()
{
fprintf(
stderr, was_moved
? "Moved inode 0x%jx (%ju bytes) from volume 0x%jx offset 0x%ju\n"
: "Inode 0x%jx (%ju bytes) data in volume 0x%jx at offset 0x%ju is unused",
? (dry_run
? "In use inode 0x%jx (%ju bytes) in volume 0x%jx at offset 0x%jx\n"
: "Moved inode 0x%jx (%ju bytes) in volume 0x%jx at offset 0x%jx\n")
: "Unused inode 0x%jx (%ju bytes) in volume 0x%jx at offset 0x%jx\n",
ino, alloc, shared_ino, shared_offset
);
}
src/nfs/nfs_proxy.cpp
+7 -3
View File
@@ -69,12 +69,16 @@ static const char* help_text =
" --portmap 0 do not listen on port 111 (portmap/rpcbind, requires root)\n"
"\n"
"vitastor-nfs --fs <NAME> upgrade\n"
" Upgrade FS metadata. Can be run online, but server should be restarted\n"
" Upgrade FS metadata. Can be run online, but server(s) should be restarted\n"
" after upgrade.\n"
"\n"
"vitastor-nfs --fs <NAME> defrag [OPTIONS] [--dry-run]\n"
" Defragment volumes used for small file storage having more than\n"
" <defrag_percent> %% of data removed. Can be run online. Options:\n"
" Defragment volumes used for small file storage having more than <defrag_percent> %%\n"
" of data removed. Can be run online.\n"
" In VitastorFS, small files are stored in large \"volumes\" / \"shared inodes\" one\n"
" after another. When you delete or extend such files, they are moved and garbage is left\n"
" behind. Defragmentation removes garbage and moves data still in use to new volumes.\n"
" Options:\n"
" --volume_untouched 86400\n"
" Defragment volumes last appended to at least this number of seconds ago\n"
" --defrag_percent 50\n"