Assert no project global blocks in a mixed cluster (#129496)

pxsalehi · web-flow · commit efa09df0be77 · 2025-06-17T10:01:17.000+02:00
Relates #127978
diff --git a/server/src/main/java/org/elasticsearch/cluster/block/ClusterBlocks.java b/server/src/main/java/org/elasticsearch/cluster/block/ClusterBlocks.java
@@ -556,6 +556,8 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeMap(indices, (o, s) -> writeBlockSet(s, o));
             if (out.getTransportVersion().onOrAfter(TransportVersions.PROJECT_DELETION_GLOBAL_BLOCK)) {
                 writeBlockSet(projectGlobal, out);
+            } else {
+                assert projectGlobal.isEmpty() : "Any MP-enabled cluster must be past TransportVersions.PROJECT_DELETION_GLOBAL_BLOCK";
             }
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -556,6 +556,8 @@ public void writeTo(StreamOutput out) throws IOException {`
`556`	`556`	`out.writeMap(indices, (o, s) -> writeBlockSet(s, o));`
`557`	`557`	`if (out.getTransportVersion().onOrAfter(TransportVersions.PROJECT_DELETION_GLOBAL_BLOCK)) {`
`558`	`558`	`writeBlockSet(projectGlobal, out);`
	`559`	`+ } else {`
	`560`	`+ assert projectGlobal.isEmpty() : "Any MP-enabled cluster must be past TransportVersions.PROJECT_DELETION_GLOBAL_BLOCK";`
`559`	`561`	`}`
`560`	`562`	`}`
`561`	`563`	`}`