imay commented on a change in pull request #2276: Use dynamic_pointer_cast when
cast shared_ptr<Base> to shared_ptr<Derived>
URL: https://github.com/apache/incubator-doris/pull/2276#discussion_r349518094
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File path: be/src/olap/rowset/beta_rowset.cpp
##########
@@ -97,11 +101,13 @@ OLAPStatus BetaRowset::remove() {
OLAPStatus BetaRowset::link_files_to(const std::string& dir, RowsetId
new_rowset_id) {
for (int i = 0; i < num_segments(); ++i) {
std::string dst_link_path = segment_file_path(dir, new_rowset_id, i);
+ // TODO(lingbin): use Env API? or EnvUtil?
if (FileUtils::check_exist(dst_link_path)) {
LOG(WARNING) << "failed to create hard link, file already exist: "
<< dst_link_path;
return OLAP_ERR_FILE_ALREADY_EXIST;
}
std::string src_file_path = segment_file_path(_rowset_path,
rowset_id(), i);
+ // TODO(lingbin): how bos support link? use copy? or keep refcount to
avoid being delete?
Review comment:
What is bos? Can we change bos to external storage?
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