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new e338e1d6711 [fix](load) Fix the issue of high-concurrency
single-replica load getting stuck (#42297)
e338e1d6711 is described below
commit e338e1d6711caaacae2cb273e200be3acee68c59
Author: Xin Liao <liaoxin...@126.com>
AuthorDate: Wed Oct 23 14:29:53 2024 +0800
[fix](load) Fix the issue of high-concurrency single-replica load getting
stuck (#42297)
In high-concurrency single-replica load, the tablet_writer_add_block RPC
may occupy the _heavy_work_pool completely, causing the
response_slave_tablet_pull_rowset RPC to have no available threads for
processing. As a result, tablet_writer_add_block waits indefinitely for
a response from the slave tablet, leading to the import getting stuck
until it times out.
response_slave_tablet_pull_rowset is relatively lightweight, so it can
be handled by the _light_work_pool.
---
be/src/service/internal_service.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/be/src/service/internal_service.cpp
b/be/src/service/internal_service.cpp
index 8dc4d7bb3c2..8217bd11bb9 100644
--- a/be/src/service/internal_service.cpp
+++ b/be/src/service/internal_service.cpp
@@ -1966,7 +1966,7 @@ void
PInternalServiceImpl::_response_pull_slave_rowset(const std::string& remote
void PInternalServiceImpl::response_slave_tablet_pull_rowset(
google::protobuf::RpcController* controller, const
PTabletWriteSlaveDoneRequest* request,
PTabletWriteSlaveDoneResult* response, google::protobuf::Closure*
done) {
- bool ret = _heavy_work_pool.try_offer([txn_mgr = _engine.txn_manager(),
request, response,
+ bool ret = _light_work_pool.try_offer([txn_mgr = _engine.txn_manager(),
request, response,
done]() {
brpc::ClosureGuard closure_guard(done);
VLOG_CRITICAL << "receive the result of slave replica pull rowset from
slave replica. "
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