public boolean isCompactionInProgress() {
    return CompactionLog.isCompactionInProgress(dataDir, storeId);
  }
Resumes a compaction if one is in progress.
@throws StoreException if there are any errors during the compaction.
@param bundleReadBuffer the preAllocated buffer for bundle read in compaction copy phase.
ambry-store/src/main/java/com/github/ambry/store/BlobStore.java