Apache9 commented on a change in pull request #1022: HBASE-23680 
RegionProcedureStore missing cleaning of hfile archive
URL: https://github.com/apache/hbase/pull/1022#discussion_r367178351
 
 

 ##########
 File path: 
hbase-server/src/main/java/org/apache/hadoop/hbase/procedure2/store/region/RegionFlusherAndCompactor.java
 ##########
 @@ -136,9 +156,43 @@ static void setupConf(Configuration conf) {
       flushPerChanges, flushIntervalMs);
   }
 
+  private boolean isHFileDeleteable(FileStatus status) {
+    long currentTime = EnvironmentEdgeManager.currentTime();
+    long time = status.getModificationTime();
+    long life = currentTime - time;
+    if (LOG.isTraceEnabled()) {
+      LOG.trace("HFile life: {}ms, ttl: {}ms, current: {}, from: {}", life, 
compactedHFileTTLMs,
+        currentTime, time);
+    }
+    if (life < 0) {
+      LOG.warn("Found a hfile ({}) newer than current time ({} < {}), probably 
a clock skew",
+        status.getPath(), currentTime, time);
+      return false;
+    }
+    return life > compactedHFileTTLMs;
+  }
+
+  void cleanupCompactedHFiles() throws IOException {
+    HStore store = Iterables.getOnlyElement(region.getStores());
+    // our HFiles are on the WAL file system, but the global HFile archive 
directory is on the
+    // root(HFile) file system, we can not move between two different file 
systems. So here we have
+    // to implement our own TTL cleaner.
+    Path archiveDir = HFileArchiveUtil.getStoreArchivePath(conf, 
region.getRegionInfo(),
+      store.getColumnFamilyDescriptor().getName());
+    FileSystem fs = archiveDir.getFileSystem(conf);
+
+    for (FileStatus status : fs.listStatus(archiveDir)) {
+      if (isHFileDeleteable(status)) {
 
 Review comment:
   Maybe a bit overkill? AFAIK, the only suitable HFileCleaner for this region 
is the TTL one, others like Links or Back Ref are not needed. Just saying. If 
you think this is the correct way then I could pass the ChoreService in and 
create a cleaner chain for cleaning the hfiles.

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