chore: remove redundant stacktraces from logs (#184)

Author: Pasichniuk

src/main/java/com/epam/aidial/deployment/manager/service/deployment/DeploymentLogsService.java

@@ -14,6 +14,7 @@
 import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
 
 import java.io.IOException;
+import java.nio.channels.ClosedByInterruptException;
 import java.util.concurrent.ExecutorService;
 
 @Slf4j
@@ -66,14 +67,19 @@ private SafeAutoCloseable startPodStreaming(String id,
                                             .name("logs")
                                             .data(line));
                                 } catch (IOException e) {
-                                    log.error("Failed to send log line. Deployment {}", id, e);
+                                    log.warn("Failed to send log line. Deployment {}", id, e);
                                     emitter.completeWithError(e);
                                 }
                             }
                         });
                 emitter.complete();
             } catch (Exception e) {
-                log.error("Failed to read logs for deployment {}", id, e);
+                String message = "Failed to read logs for deployment " + id;
+                if (e instanceof ClosedByInterruptException) {
+                    log.warn("{}. Reason: ClosedByInterruptException", message);
+                } else {
+                    log.warn(message, e);
+                }
                 emitter.completeWithError(e);
             }
         });

src/main/java/com/epam/aidial/deployment/manager/service/deployment/healthcheck/McpHealthChecker.java

@@ -52,7 +52,7 @@ public void waitReady(String serviceUrl, Deployment deployment, Duration timeout
                 }
             });
         } catch (RuntimeException e) {
-            throw new IllegalStateException("MCP service failed to become ready at URL: " + serviceUrl, e);
+            throw new IllegalStateException("MCP service failed to become ready at URL: %s. Reason: %s".formatted(serviceUrl, e.getMessage()));
         }
         log.debug("MCP service is ready at URL: {}", serviceUrl);
     }

src/test/java/com/epam/aidial/deployment/manager/service/deployment/healthcheck/McpHealthCheckerTest.java

@@ -124,8 +124,7 @@ void waitReady_shouldThrowIllegalStateExceptionWhenClientInitializationFails() {
         );
 
         assertThat(exception)
-                .hasMessageContaining("MCP service failed to become ready at URL: " + SERVICE_URL)
-                .hasCause(initializationException);
+                .hasMessageContaining("MCP service failed to become ready at URL: %s. Reason: %s".formatted(SERVICE_URL, "Connection failed"));
         verify(retryTemplateFactory).apply(TIMEOUT);
         verify(mcpEndpointPathResolver).resolveEndpointPath(mcpDeployment);
     }