Placement of operators and encryption of communication based on risk in a computer system node

A computer-implemented method executed by at least one processor for managing a streaming application, the method comprising:

• managing a plurality of streaming applications on a plurality of computer nodes, wherein the plurality of streaming applications comprise a plurality of operators that communicate streaming data between the plurality of operators;
• monitoring changes to the plurality of nodes to determine a security risk of communication between two operators of the plurality of operators on a single node of the plurality of nodes;
• in response to an increased security risk, acquiring additional resources;
• and
• dynamically migrating at least one operator from the single node to a different node to reduce the security risk of communication between the two operators on the single node.

A computer-implemented method executed by at least one processor for managing a streaming application, the method comprising:

• managing a plurality of streaming applications on a plurality of computer nodes, wherein the plurality of streaming applications each comprise a plurality of operators that communicate streaming data between the plurality of operators;
• establishing a security baseline for streaming communication on the plurality of nodes;
• applying node profile data and security data to a determined change in the plurality of nodes to determine the security risk;
• monitoring changes to the plurality of nodes to determine a security risk of communication between two operators of the plurality of operators on a single node of the plurality of nodes;
• in response to an increased security risk, providing a recommendation based on the security risk to a customer and allowing the customer to override encryption of a data communication stream;
• acquiring additional resources;
• dynamically migrating at least one operator from the single node to a different node to reduce the security risk of communication between the two operators on the single node;
• dynamically changing encryption of streaming data between the operators on a node of the plurality of nodes based on the security risk and a customer override from the customer;
• and
• monitoring the nodes for decreased risks and changing a communication link that provides intranode communication that has been encrypted to use unencrypted communication.