Lars Volker created IMPALA-8388:
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Summary: Misleading error message when rejecting incoming RPCs b/c
of memory pressure
Key: IMPALA-8388
URL: https://issues.apache.org/jira/browse/IMPALA-8388
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 3.2.0, Impala 3.1.0, Impala 2.12.0, Impala 3.3.0
Reporter: Lars Volker
When running out of memory we reject incoming RPCs (expected). However, our
error message assumes that the queue is full and prints it as INT_MAX (the
queue size):
{code}
void ImpalaServicePool::RejectTooBusy(kudu::rpc::InboundCall* c) {
string err_msg =
Substitute("$0 request on $1 from $2 dropped due to backpressure. "
"The service queue contains $3 items out of a maximum of $4; "
"memory consumption is $5.",
c->remote_method().method_name(),
service_->service_name(),
c->remote_address().ToString(),
service_queue_.estimated_queue_length(),
service_queue_.max_size(), // <-- HERE
PrettyPrinter::Print(service_mem_tracker_->consumption(),
TUnit::BYTES));
{code}
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