NXCALS-7569 Improve generation of tmp working dir for compactor jobs

Merge request template

COMPATIBILITY NOTE

Please make sure that this change is BACKWARDS COMPATIBLE and a new server will work correctly with clients using old APIs versions.

It may be that data sent in the new format will break the old clients.

In case of any potential incompatibility we have to inform our clients and schedule release & deployment with them.

---

@acc-logging-team - please have a look for approval.

Please describe the merge request here.

Closes NXCALS-7569

compaction/src/main/java/cern/nxcals/compaction/processor/BaseJobProcessor.java

@@ -37,6 +37,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
+import java.util.UUID;
 import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 
@@ -78,8 +79,8 @@ public abstract class BaseJobProcessor<T extends DataProcessingJob> implements J
     private final LoadingCache<Long, String> timestampFieldsCache;
 
     protected BaseJobProcessor(@NonNull FileSystem fileSystem, @NonNull Lazy<SparkSession> ctx,
-                               @NonNull InternalSystemSpecService systemService,
-                               @NonNull @Value("${compactor.work.dir}") String compactionDir) {
+            @NonNull InternalSystemSpecService systemService,
+            @NonNull @Value("${compactor.work.dir}") String compactionDir) {
         this.fs = fileSystem;
         this.sparkSessionLazy = ctx;
         this.systemService = systemService;
@@ -199,7 +200,7 @@ public abstract class BaseJobProcessor<T extends DataProcessingJob> implements J
 
     protected Path createTempCompactionPath(T job, String filePrefix) {
         return new Path(compactionDir + Path.SEPARATOR + "compaction" + job.getDestinationDir().getPath()
-                .replace(Path.SEPARATOR_CHAR, '-') + "-" + filePrefix + System.currentTimeMillis());
+                .replace(Path.SEPARATOR_CHAR, '-') + "-" + filePrefix + UUID.randomUUID());
     }
 
     private void startLog(T job) {