use .tmp suffix instead of /tmp (#1447)

Author: makalaaneesh

debezium-server-voyager/debezium-server-voyagerexporter/src/main/java/io/debezium/server/ybexporter/ExportStatus.java

@@ -164,10 +164,10 @@ public void updateTableSchema(Table t) {
             if ((sourceType.equals("postgresql") || sourceType.equals("yb")) && (!t.schemaName.equals("public"))) {
                 fileName = t.schemaName + "." + fileName;
             }
-            String tempPath = String.format("/tmp/%s_%s_schema.json", exporterRole, fileName);
-            File tempFile = new File(tempPath);
             String schemaFilePath = String.format("%s/schemas/%s/%s_schema.json", dataDir, exporterRole, fileName);
             File schemaFile = new File(schemaFilePath);
+            String tempPath = String.format("%s.tmp", schemaFilePath);
+            File tempFile = new File(tempPath);
             // writing to a temp file and moving later to achieve atomic write.
             schemaWriter.writeValue(tempFile, tableSchema);
             Files.move(tempFile.toPath(), schemaFile.toPath(), ATOMIC_MOVE);

yb-voyager/src/utils/schemareg/schemaRegistry.go

@@ -123,6 +123,9 @@ func (sreg *SchemaRegistry) Init() error {
 		return fmt.Errorf("failed to read schema dir %s: %w", schemaDir, err)
 	}
 	for _, schemaFile := range schemaFiles {
+		if strings.HasSuffix(schemaFile.Name(), ".tmp") {
+			continue
+		}
 		schemaFilePath := filepath.Join(schemaDir, schemaFile.Name())
 		schemaFile, err := os.Open(schemaFilePath)
 		if err != nil {