Fix a problem caused by missing state (release-7.1).

[RenxuanW]

PR on main: #7479.

Without state, the code compiles to

if (coordinator->get().get().hostname.present())
{
	Hostname h = coordinator->get().get().hostname.get();
	StrictFuture<Void> __when_expr_1 = store(coordinatorAddress, h.resolveWithRetry());
	if (static_cast<GetClusterProtocolImplActor*>(this)->actor_wait_state < 0) return a_body1Catch1(actor_cancelled(), std::max(0, loopDepth - 1));
	if (__when_expr_1.isReady()) {
		if (__when_expr_1.isError()) return a_body1Catch1(__when_expr_1.getError(), std::max(0, loopDepth - 1));
		else return a_body1loopBody1when2(__when_expr_1.get(), loopDepth);
	};
	static_cast<GetClusterProtocolImplActor*>(this)->actor_wait_state = 2;"
	__when_expr_1.addCallbackAndClear(static_cast<ActorCallback< GetClusterProtocolImplActor, 1, Void >*>(static_cast<GetClusterProtocolImplActor*>(this)));
	loopDepth = 0;
}

Hostname h is destructed before the callback function is run, thus the resolved address can be unpredictible, sometimes has tls and can cause connection failures and further errors in k8s tests.

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[halfprice]

Nice find!

Make sure this is in main branch as well.

[foundationdb-ci]

Result of foundationdb-pr-macos on macOS BigSur 11.5.2

• Commit ID: 4c0b40f
• Duration 0:33:36
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 4c0b40f
• Duration 0:40:31
• Result: ❌ FAILED
• Error: Error while executing command: tar -czf "${CODEBUILD_SRC_DIR}/packaging/docker/website/${FDB_VERSION}/fdb_${FDB_VERSION}.tar.gz" --directory "${CODEBUILD_SRC_DIR}/packaging/docker/website/${FDB_VERSION} .. Reason: exit status 2
• Build Logs (available for 30 days)

[fdb-windows-ci]

Doxense CI Report for Windows 10

• Commit ID: 4c0b40f
• Result: ✔️ SUCCEEDED
• Build Logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 4c0b40f
• Duration 1:03:32
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)