gavinchou commented on code in PR #51711:
URL: https://github.com/apache/doris/pull/51711#discussion_r2145048060
##########
be/src/io/cache/block_file_cache_factory.cpp:
##########
@@ -174,16 +171,52 @@ std::vector<std::string>
FileCacheFactory::get_base_paths() {
return paths;
}
+std::string validate_capacity(const std::string& path, int64_t new_capacity,
+ int64_t& valid_capacity) {
+ struct statfs stat;
+ if (statfs(path.c_str(), &stat) < 0) {
+ auto ret = fmt::format("reset capacity {} statfs error {}. ", path,
strerror(errno));
+ LOG_ERROR(ret);
+ return ret;
+ }
+ size_t disk_capacity =
static_cast<size_t>(static_cast<size_t>(stat.f_blocks) *
+
static_cast<size_t>(stat.f_bsize));
+ if (new_capacity == 0 || disk_capacity < new_capacity) {
+ auto ret = fmt::format(
+ "The cache {} config size {} is larger than disk size {} or
zero, recalc "
+ "it to disk size. ",
+ path, new_capacity, disk_capacity);
+ valid_capacity = disk_capacity;
+ LOG_WARNING(ret);
+ return ret;
+ }
+ valid_capacity = new_capacity;
+ return "";
+}
+
std::string FileCacheFactory::reset_capacity(const std::string& path, int64_t
new_capacity) {
+ std::stringstream ss;
+ size_t total_capacity = 0;
if (path.empty()) {
- std::stringstream ss;
- for (auto& [_, cache] : _path_to_cache) {
- ss << cache->reset_capacity(new_capacity);
+ for (auto& [p, cache] : _path_to_cache) {
+ int64_t valid_capacity;
+ ss << validate_capacity(p, new_capacity, valid_capacity);
Review Comment:
calling to `reset_capacity()` should fail
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