Description
Saw this in one of my runs while debugging TS-4900 and TS-4813. It might have been due to my attempted fix, but I don't think so.
I left current master running in production for an hour. When I returned, CPU utilization had jumped from 70% to 400%. perf top showed that the majority of time was being spent in Http2ConnectionState::restart_streams. Connected with debugger and two threads were spinning in that method. In each case this->stream_list.head->link.next == this->stream_list.head->link.prev and this->thread_list.head->link.next != NULL.
I assume that was are missing some locking and the stream_list is being manipulated by two threads in parallel.
Attachments
Issue Links
- is related to
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TS-4916 Http2ConnectionState::restart_streams infinite loop causes deadlock
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- Closed
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