There is some flakiness in bazel tests. Please file an issue on github and 
provide the steps in detail to reproduce this. 

Thanks.

On Friday, August 17, 2018 at 3:16:13 PM UTC-7, Abhishek Parmar wrote:
>
> I have a weird problem with one of my unit tests that is using streaming 
> grpc. The test crashes about 10/1000 times but only when run under bazel 
> (i.e bazel test my_test). This happens with or without bazel sandboxing.
>
> When run on its own it works fine thousands of times.
>
> The most frequent test failure is
>
> E0817 19:54:09.499559477      18 server_cc.cc:629]           Fatal: 
> grpc_call_start_batch returned 8
> E0817 19:54:09.499590418      18 server_cc.cc:630]           ops[0]: 
> SEND_INITIAL_METADATA(nil)
> E0817 19:54:09.499595057      18 server_cc.cc:630]           ops[1]: 
> SEND_MESSAGE ptr=0x2330f00
>
> Sometimes I also see:
> E0817 19:54:21.345913273      18 proto_buffer_writer.h:65]   assertion 
> failed: !byte_buffer->Valid()
>
> Does this ring a bell for anyone? I did not find any similar issues 
> reported so I thought I would ask here before I dig any deeper.
>
> I am using grpc v1.14.1, though the failure happens in a similar place 
> even in 1.4.2 (from which I am upgrading our codebase).
>
> Thanks in advance.
> Abhishek
>

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