GetCommitSignatures' messages can be too large
https://sentry.gitlab.net/gitlab/gitlabcom/issues/736414/ ``` GRPC::ResourceExhausted: 8:Received message larger than max (6302368 vs. 4194304) grpc/generic/active_call.rb:31:in `check_status' fail GRPC::BadStatus.new_status_exception( grpc/generic/active_call.rb:181:in `attach_status_results_and_complete_call' recv_status_batch_result.check_status grpc/generic/active_call.rb:170:in `receive_and_check_status' attach_status_results_and_complete_call(batch_result) grpc/generic/active_call.rb:338:in `each_remote_read_then_finish' receive_and_check_status gitlab/gitaly_client/commit_service.rb:440:in `each' response.flat_map do |message| ... (158 additional frame(s) were not displayed) Gitlab::Git::CommandError: 8:Received message larger than max (6302368 vs. 4194304) gitlab/git/wraps_gitaly_errors.rb:13:in `rescue in wrapped_gitaly_errors' raise Gitlab::Git::CommandError.new(e) gitlab/git/wraps_gitaly_errors.rb:6:in `wrapped_gitaly_errors' def wrapped_gitaly_errors(&block) gitlab/metrics/instrumentation.rb:161:in `block in wrapped_gitaly_errors' .measure { super } gitlab/metrics/method_call.rb:36:in `measure' retval = yield gitlab/metrics/instrumentation.rb:161:in `wrapped_gitaly_errors' .measure { super } ... (150 additional frame(s) were not displayed) Gitlab::Git::CommandError: 8:Received message larger than max (6302368 vs. 4194304) ```
issue