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HashIndex: sync top directory during start_split,merge,col_split

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Otherwise, the links might be ordered after the in progress
operation tag write.  We need the in progress operation tag to
correctly recover from an interrupted merge, split, or col_split.

Fixes: #5180
Backport: cuttlefish, bobtail
Signed-off-by: Samuel Just <sam.just@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Samuel Just 2013-05-28 11:10:05 -07:00
parent 8c1c2d98c6
commit 5bca9c38ef
1 changed files with 12 additions and 3 deletions
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15
src/os/HashIndex.cc
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@ -368,21 +368,30 @@ int HashIndex::start_col_split(const vector<string> &path) {
bufferlist bl;
InProgressOp op_tag(InProgressOp::COL_SPLIT, path);
op_tag.encode(bl);
return add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
int r = add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
if (r < 0)
return r;
return fsync_dir(vector<string>());
}
int HashIndex::start_split(const vector<string> &path) {
bufferlist bl;
InProgressOp op_tag(InProgressOp::SPLIT, path);
op_tag.encode(bl);
return add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
int r = add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
if (r < 0)
return r;
return fsync_dir(vector<string>());
}
int HashIndex::start_merge(const vector<string> &path) {
bufferlist bl;
InProgressOp op_tag(InProgressOp::MERGE, path);
op_tag.encode(bl);
return add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
int r = add_attr_path(vector<string>(), IN_PROGRESS_OP_TAG, bl);
if (r < 0)
return r;
return fsync_dir(vector<string>());
}
int HashIndex::end_split_or_merge(const vector<string> &path) {