Hi Yihao,
1.0.0 is a very old version. Any reason you haven't used a more recent one?
1.6 was released a couple of weeks ago, for example.
On Friday, 8 September 2017 19:41:32 UTC-7, yihao yang wrote:
>
> // get channel state first
> I0711 11:31:07.631235663 15477 channel_connectivity.c:53]
> grpc_channel_check_connectivity_state(channel=0x21d94b0, try_to_connect=1
> )
>
> // create cq and call grpc_completion_queue_next
> D0711 11:31:07.631243561 15477 connectivity_state.c:92] CONWATCH:
> 0x21d95f8 client_channel: get TRANSIENT_FAILURE
> I0711 11:31:07.631251411 15477 init.c:193] grpc_init(
> void)
> I0711 11:31:07.631258629 15477 completion_queue.c:139]
> grpc_completion_queue_create(reserved=(nil))
> I0711 11:31:07.631267808 15477 channel_connectivity.c:196]
> grpc_channel_watch_connectivity_state(channel=0x21d94b0,
> last_observed_state=3, deadline=gpr_timespec { tv_sec: 1499797868, tv_nsec
> : 630269237, clock_type: 1 }, cq=0x7f2c3800be60, tag=0x7f2c00001860)
> D0711 11:31:07.631278808 15477 connectivity_state.c:109] CONWATCH:
> 0x21d95f8 client_channel: from TRANSIENT_FAILURE [cur=TRANSIENT_FAILURE]
> notify=0x7f2c000015b8
> I0711 11:31:07.631288664 15477 completion_queue.c:333]
> grpc_completion_queue_next(cc=0x7f2c3800be60, deadline=gpr_timespec {
> tv_sec: 9223372036854775807, tv_nsec: 0, clock_type: 1 }, reserved=(nil))
>
>
> // Here inside grpc_completion_queue_next, it blocked for 1 seconds. and
> then when destroyed the cq, assertoin failed.
> *I0711 **11:31:08.630851834 15477 completion_queue.c:394]
> RETURN_EVENT[0x7f2c3800be60]: OP_COMPLETE: tag:0x7f2c00001860*
> * ERROR*I0711 11:31:08.630867090 15477 completion_queue.c:561]
> grpc_completion_queue_destroy(cc=0x7f2c3800be60)
> I0711 11:31:08.630871804 15477 completion_queue.c:541]
> grpc_completion_queue_shutdown(cc=0x7f2c3800be60)
> D0711 11:31:08.630887317 15467 tcp_client_posix.c:305]
> CLIENT_CONNECT: ipv6:[::1]:19998: asynchronously connecting
> E0711 11:31:08.630888449 15477 ev_epoll_linux.c:1296] assertion
> failed: pollset->polling_island == NULL
>
> Hi, all,
>
> The grpc version is v1.0.0. The scenario is like this: I was using a
> channel in a TRANSIENT_FAILURE state, and calling
> channel.WaitStateForConnected in the background.
> But something error happened in the cq, it returns an ERROR event (I don't
> know the inside logic), and when destroy the cq, an assertion failed.
> I think this may be a bug. Can anyone give me some hint?
>
> Thanks,
> Yihao
>
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