How to use

replicateWALEntry

method

in

org.apache.hadoop.hbase.protobuf.ReplicationProtbufUtil

@VisibleForTesting
protected int replicateEntries(List<Entry> entries, int batchIndex) throws IOException {
 SinkPeer sinkPeer = null;
 try {
  int entriesHashCode = System.identityHashCode(entries);
  if (LOG.isTraceEnabled()) {
   long size = entries.stream().mapToLong(this::getEstimatedEntrySize).sum();
   LOG.trace("Replicating batch {} of {} entries with total size {} bytes to {}",
    entriesHashCode, entries.size(), size, replicationClusterId);
  }
  sinkPeer = replicationSinkMgr.getReplicationSink();
  BlockingInterface rrs = sinkPeer.getRegionServer();
  try {
   ReplicationProtbufUtil.replicateWALEntry(rrs, entries.toArray(new Entry[entries.size()]),
    replicationClusterId, baseNamespaceDir, hfileArchiveDir);
   LOG.trace("Completed replicating batch {}", entriesHashCode);
  } catch (IOException e) {
   LOG.trace("Failed replicating batch {}", entriesHashCode, e);
   throw e;
  }
  replicationSinkMgr.reportSinkSuccess(sinkPeer);
 } catch (IOException ioe) {
  if (sinkPeer != null) {
   replicationSinkMgr.reportBadSink(sinkPeer);
  }
  throw ioe;
 }
 return batchIndex;
}

protected final void verifyReplicationRequestRejection(HBaseTestingUtility utility,
  boolean expectedRejection) throws Exception {
 HRegionServer regionServer = utility.getRSForFirstRegionInTable(TABLE_NAME);
 ClusterConnection connection = regionServer.getClusterConnection();
 Entry[] entries = new Entry[10];
 for (int i = 0; i < entries.length; i++) {
  entries[i] =
   new Entry(new WALKeyImpl(HConstants.EMPTY_BYTE_ARRAY, TABLE_NAME, 0), new WALEdit());
 }
 if (!expectedRejection) {
  ReplicationProtbufUtil.replicateWALEntry(connection.getAdmin(regionServer.getServerName()),
   entries, null, null, null);
 } else {
  try {
   ReplicationProtbufUtil.replicateWALEntry(connection.getAdmin(regionServer.getServerName()),
    entries, null, null, null);
   fail("Should throw IOException when sync-replication state is in A or DA");
  } catch (DoNotRetryIOException e) {
   assertTrue(e.getMessage().contains("Reject to apply to sink cluster"));
   assertTrue(e.getMessage().contains(TABLE_NAME.toString()));
  }
 }
}

@Override
public Integer call() throws IOException {
 SinkPeer sinkPeer = null;
 try {
  sinkPeer = replicationSinkMgr.getReplicationSink();
  BlockingInterface rrs = sinkPeer.getRegionServer();
  ReplicationProtbufUtil.replicateWALEntry(rrs,
    entries.toArray(new Entry[entries.size()]));
  replicationSinkMgr.reportSinkSuccess(sinkPeer);
  return ordinal;
 } catch (IOException ioe) {
  if (sinkPeer != null) {
   replicationSinkMgr.reportBadSink(sinkPeer);
  }
  throw ioe;
 }
}