gavinchou commented on code in PR #34354:
URL: https://github.com/apache/doris/pull/34354#discussion_r1595750923
##########
be/src/io/fs/hdfs_file_writer.cpp:
##########
@@ -44,7 +48,112 @@ bvar::Adder<uint64_t>
hdfs_bytes_written_total("hdfs_file_writer_bytes_written")
bvar::Adder<uint64_t> hdfs_file_created_total("hdfs_file_writer_file_created");
bvar::Adder<uint64_t>
hdfs_file_being_written("hdfs_file_writer_file_being_written");
+class HdfsMaxConnectionLimiter {
+public:
+ HdfsMaxConnectionLimiter() = default;
+ ~HdfsMaxConnectionLimiter() = default;
+
+ Status add_inflight_writer() {
+ int retry = config::hdfs_jni_write_max_retry_time;
+ std::unique_lock lck {_latch};
+ while (!_cv.wait_for(
+ lck,
std::chrono::milliseconds(config::hdfs_jni_write_sleep_milliseconds), [&]() {
+ return _cur_inflight_writer <
config::max_inflight_hdfs_write_connection;
+ })) {
+ if (retry > 0) {
+ retry--;
+ continue;
+ }
+ }
Review Comment:
LOG if no available connections
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