chenBright commented on PR #3145:
URL: https://github.com/apache/brpc/pull/3145#issuecomment-3545336123
> Maybe we need another variable which checks the event of IBV_WC_SEND, it
is guaranteed that SQs are released if we polled the work completion of
IBV_WC_SEND.
> [E1008]Reached timeout=60000ms @Socket{id=13 fd=1160 addr=xxx:xx}
(0x0x7f957c964ec0) rdma info={rdma_state=ON, handshake_state=ESTABLISHED,
rdma_remote_rq_window_size=63, rdma_sq_window_size=0,
rdma_local_window_capacity=125, rdma_remote_window_capacity=125,
rdma_sbuf_head=57, rdma_sbuf_tail=120, rdma_rbuf_head=36, rdma_unacked_rq_wr=0,
rdma_received_ack=0, rdma_unsolicited_sent=0, rdma_unsignaled_sq_wr=1,
rdma_new_rq_wrs=0, }
In this case, it seems we cannot poll any work completion of IBV_WC_SEND
for a long time. With solicited_only=1, if device layer ACKs follows all
application layer ACKs, we may be unable to poll IBV_WC_SEND after polling
IBV_WC_RECV because there are no CQEs.
> Maybe we need another variable which checks the event of IBV_WC_SEND
How can we check for the event of IBV_WC_SEND？
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