(control) UX fixes, node GUI doesn't break when an executor service goes offline.

code/api/executor-api/src/main/java/nu/marginalia/executor/client/ExecutorClient.java

@@ -1,8 +1,10 @@
 package nu.marginalia.executor.client;
 
 import com.google.inject.Inject;
+import io.reactivex.rxjava3.core.Observable;
 import nu.marginalia.client.AbstractDynamicClient;
 import nu.marginalia.client.Context;
+import nu.marginalia.client.exception.RouteNotConfiguredException;
 import nu.marginalia.executor.model.ActorRunStates;
 import nu.marginalia.executor.model.load.LoadParameters;
 import nu.marginalia.executor.model.transfer.TransferItem;
@@ -18,6 +20,8 @@ import java.io.OutputStream;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 public class ExecutorClient extends AbstractDynamicClient {
@@ -63,11 +67,6 @@ public class ExecutorClient extends AbstractDynamicClient {
         post(ctx, node, "/process/adjacency-calculation", "").blockingSubscribe();
     }
 
-    public void exportData(Context ctx) {
-//        post(ctx, node, "/process/adjacency-calculation/", "").blockingSubscribe();
-        // FIXME this shouldn't be done in the executor
-    }
-
     public void sideloadEncyclopedia(Context ctx, int node, Path sourcePath, String baseUrl) {
         post(ctx, node,
                 "/sideload/encyclopedia?path="+ URLEncoder.encode(sourcePath.toString(), StandardCharsets.UTF_8) + "&baseUrl=" + URLEncoder.encode(baseUrl, StandardCharsets.UTF_8),
@@ -110,16 +109,34 @@ public class ExecutorClient extends AbstractDynamicClient {
     }
 
     public ActorRunStates getActorStates(Context context, int node) {
+        try {
             return get(context, node, "/actor", ActorRunStates.class).blockingFirst();
         }
+        catch (RouteNotConfiguredException ex) {
+            // node is down, return dummy data
+            return new ActorRunStates(node, new ArrayList<>());
+        }
+    }
 
     public UploadDirContents listSideloadDir(Context context, int node) {
+        try {
             return get(context, node, "/sideload/", UploadDirContents.class).blockingFirst();
         }
+        catch (RouteNotConfiguredException ex) {
+            // node is down, return dummy data
+            return new UploadDirContents("/", new ArrayList<>());
+        }
+    }
 
     public FileStorageContent listFileStorage(Context context, int node, FileStorageId fileId) {
+        try {
             return get(context, node, "/storage/"+fileId.id(), FileStorageContent.class).blockingFirst();
         }
+        catch (RouteNotConfiguredException ex) {
+            // node is down, return dummy data
+            return new FileStorageContent(new ArrayList<>());
+        }
+    }
 
     public void transferFile(Context context, int node, FileStorageId fileId, String path, OutputStream destOutputStream) {
         String endpoint = "/transfer/file/%d?path=%s".formatted(fileId.id(), URLEncoder.encode(path, StandardCharsets.UTF_8));

code/common/config/src/main/java/nu/marginalia/nodecfg/model/NodeConfiguration.java

@@ -9,4 +9,7 @@ public record NodeConfiguration(int node,
                                 boolean disabled
                                 )
 {
+    public int getId() {
+        return node;
+    }
 }

code/services-core/control-service/src/main/java/nu/marginalia/control/node/model/IndexNode.java

@@ -1,4 +0,0 @@
-package nu.marginalia.control.node.model;
-
-public record IndexNode(int id) {
-}

code/services-core/control-service/src/main/java/nu/marginalia/control/node/svc/ControlNodeService.java

@@ -183,7 +183,7 @@ public class ControlNodeService {
 
         return Map.of(
                 "tab", Map.of("storage", true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "view", Map.of("specs", true)
         );
     }
@@ -193,7 +193,7 @@ public class ControlNodeService {
 
         return Map.of(
                 "tab", Map.of("actors", true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "actors", executorClient.getActorStates(Context.fromRequest(request), nodeId).states()
         );
     }
@@ -203,7 +203,7 @@ public class ControlNodeService {
 
         return Map.of(
                 "tab", Map.of("actions", true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "view", Map.of(request.queryParams("view"), true),
                 "uploadDirContents", executorClient.listSideloadDir(Context.fromRequest(request), nodeId),
                 "allBackups",
@@ -223,7 +223,7 @@ public class ControlNodeService {
         return Map.of(
                 "tab", Map.of("storage", true),
                 "view", Map.of("conf", true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "storagebase", getStorageBaseList(nodeId)
         );
     }
@@ -245,7 +245,7 @@ public class ControlNodeService {
         return Map.of(
                 "tab", Map.of("storage", true),
                 "view", Map.of(view, true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "storage", makeFileStorageBaseWithStorage(getFileStorageIds(type, nodeId))
         );
     }
@@ -266,7 +266,7 @@ public class ControlNodeService {
         return Map.of(
                 "tab", Map.of("storage", true),
                 "view", Map.of(view, true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "storage", storage
                 );
     }
@@ -284,7 +284,7 @@ public class ControlNodeService {
 
         return Map.of(
                 "tab", Map.of("config", true),
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "config", Objects.requireNonNull(nodeConfigurationService.get(nodeId), "Failed to fetch configuration"),
                 "storage", storage);
     }
@@ -325,7 +325,7 @@ public class ControlNodeService {
         actors.removeIf(actor -> actor.state().equals("MONITOR"));
 
         return Map.of(
-                "node", new IndexNode(nodeId),
+                "node", nodeConfigurationService.get(nodeId),
                 "status", getStatus(config),
                 "events", getEvents(nodeId),
                 "processes", heartbeatService.getProcessHeartbeatsForNode(nodeId),

code/services-core/control-service/src/main/java/nu/marginalia/control/sys/svc/ControlSysActionsService.java

@@ -72,7 +72,6 @@ public class ControlSysActionsService {
         Spark.post("/public/actions/recrawl-all", this::recrawlAll, Redirects.redirectToOverview);
         Spark.post("/public/actions/flush-api-caches", this::flushApiCaches, Redirects.redirectToOverview);
         Spark.post("/public/actions/reload-blogs-list", this::reloadBlogsList, Redirects.redirectToOverview);
-        Spark.post("/public/actions/trigger-data-exports", this::triggerDataExports, Redirects.redirectToOverview);
     }
 
     @SneakyThrows
@@ -99,14 +98,6 @@ public class ControlSysActionsService {
         return Map.of("precessionNodes", eligibleNodes);
     }
 
-    public Object triggerDataExports(Request request, Response response) throws Exception {
-        eventLog.logEvent("USER-ACTION", "EXPORT-DATA");
-
-        executorClient.exportData(Context.fromRequest(request));
-
-        return "";
-    }
-
     public Object reloadBlogsList(Request request, Response response) throws Exception {
         eventLog.logEvent("USER-ACTION", "RELOAD-BLOGS-LIST");
 

code/services-core/control-service/src/main/resources/templates/control/node/actions/partial-new-crawl.hdb

@@ -10,8 +10,8 @@
     This will perform a new crawl on node {{node.id}} based on the crawl spec you select below.
     Additional specifications can be created <a href="/nodes/{{node.id}}/storage/new-specs">with this form</a>.
     </div>
-    <div class="my-3 p-3 border text-danger">
+    <div class="my-3 p-3 border">
-        <p><strong>IMPORTANT!</strong>  Be sure you've read and understood the
+        <p><em class="text-danger">IMPORTANT!</em>  Be sure you've read and understood the
             <a href="https://github.com/MarginaliaSearch/MarginaliaSearch/blob/master/doc/crawling.md">crawling documentation</a>
         before you begin a crawl.  You will be accessing real servers from your connection, and you may end up on IP greylists
         that temporarily block your access to those servers for up to a few weeks; on rare occasions permanently.  The crawler

code/services-core/control-service/src/main/resources/templates/control/node/partial-node-nav.hdb

@@ -1,5 +1,11 @@
 
 <h1 class="my-3">Index Node {{node.id}}</h1>
+{{#if node.disabled}}
+    <small class="text-danger">This index node is disabled!</small>
+{{/if}}
+{{#unless node.acceptQueries}}
+    <small class="text-danger">This index node is not accepting queries!</small>
+{{/unless}}
 <nav class="nav nav-tabs">
     <li class="nav-item">
         <a class="nav-link {{#if tab.overview}}active{{/if}}" href="/nodes/{{node.id}}/">Overview</a>