Tests are failing due to too many concurrent connections to Gerrit

agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,186.186 INFO:run_tests.py:115: 2019-04-30 07:59:15,108.108 ERROR:dependency.py:65: Failed to resolve dependencies
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,186.186 INFO:run_tests.py:115: Traceback (most recent call last):
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,186.186 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/dependency.py", line 62, in get_submodule_dependencies
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,187.187 INFO:run_tests.py:115: resolvedRepositories = await self._resolve_repositories(modules, superRepo)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,187.187 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 129, in throw
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,187.187 INFO:run_tests.py:115: return self.gen.throw(type, value, traceback)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,187.187 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/dependency.py", line 70, in _resolve_repositories
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,187.187 INFO:run_tests.py:115: submodules = await self.repoManager.readSubModules(superRepo)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 129, in throw
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: return self.gen.throw(type, value, traceback)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/repositorymanager.py", line 572, in readSubModules
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: await asyncio.gather(*(resolve_submodule(submodule, results[submodule["path"]]) for submodule in modules.values() if not submodule.get('sha1')))
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 126, in send
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,188.188 INFO:run_tests.py:115: return self.gen.send(value)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/repositorymanager.py", line 556, in resolve_submodule
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: await self.fetch(repo.gerritInstance, repo.project, repo.sha1, submodule["branch"])
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 110, in __next__
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: return self.gen.send(None)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/repositorymanager.py", line 181, in fetch
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,189.189 INFO:run_tests.py:115: await fetch("--tags", "--prune", "origin", fallback_fetch_ref)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,190.190 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 110, in __next__
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,190.190 INFO:run_tests.py:115: return self.gen.send(None)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,190.190 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/repositorymanager.py", line 235, in __call__
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,190.190 INFO:run_tests.py:115: return await self.git(*args, **kwargs)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,190.190 INFO:run_tests.py:115: File "/usr/lib/python3.6/asyncio/coroutines.py", line 110, in __next__
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: return self.gen.send(None)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: File "/home/qt/work/qtqa/tqtc-coin-ci/src/ash.py", line 146, in __call__
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: raise sh.ErrorReturnCode_128(" ".join(processed_args), stdout, stderr)
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: sh.ErrorReturnCode_128:
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: 
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,191.191 INFO:run_tests.py:115: RAN: git --git-dir=/home/qt/ci-working-dir/git-repos/qt-project/qt/qtgamepad --no-pager fetch --tags --prune origin dev
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: 
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: STDOUT:
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: 
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: 
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: STDERR:
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,192.192 INFO:run_tests.py:115: Received disconnect from 54.229.21.112 port 29418:7: Too many concurrent connections
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,193.193 INFO:run_tests.py:115: Disconnected from 54.229.21.112 port 29418
agent:2019/04/30 04:59:15 build.go:192: 2019-04-30 07:59:15,193.193 INFO:run_tests.py:115: fatal: Could not read from remote repository.