wchevreuil commented on a change in pull request #749: HBASE-23205 Correctly
update the position of WALs currently being replicated
URL: https://github.com/apache/hbase/pull/749#discussion_r348092931
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReaderThread.java
##########
@@ -135,59 +127,46 @@ public void run() {
try (WALEntryStream entryStream =
new WALEntryStream(logQueue, fs, conf, currentPosition, metrics)) {
while (isReaderRunning()) { // loop here to keep reusing stream while
we can
- if (!checkQuota()) {
+ if (manager.isBufferQuotaReached()) {
+ Threads.sleep(sleepForRetries);
continue;
}
- WALEntryBatch batch = null;
- while (entryStream.hasNext()) {
- if (batch == null) {
- batch = new WALEntryBatch(replicationBatchCountCapacity,
entryStream.getCurrentPath());
- }
+ WALEntryBatch batch =
+ new WALEntryBatch(replicationBatchCountCapacity,
replicationBatchSizeCapacity);
+ boolean hasNext;
+ while ((hasNext = entryStream.hasNext()) == true) {
Entry entry = entryStream.next();
entry = filterEntry(entry);
if (entry != null) {
WALEdit edit = entry.getEdit();
if (edit != null && !edit.isEmpty()) {
- long entrySize = getEntrySizeIncludeBulkLoad(entry);
- long entrySizeExlucdeBulkLoad =
getEntrySizeExcludeBulkLoad(entry);
- batch.addEntry(entry);
- replicationSourceManager.setPendingShipment(true);
- updateBatchStats(batch, entry, entryStream.getPosition(),
entrySize);
- boolean totalBufferTooLarge =
acquireBufferQuota(entrySizeExlucdeBulkLoad);
+ long entrySizeExcludeBulkLoad = batch.addEntry(entry);
+ boolean totalBufferTooLarge =
manager.acquireBufferQuota(entrySizeExcludeBulkLoad);
// Stop if too many entries or too big
- if (totalBufferTooLarge || batch.getHeapSize() >=
replicationBatchSizeCapacity
- || batch.getNbEntries() >= replicationBatchCountCapacity) {
+ if (totalBufferTooLarge || batch.isLimitReached()) {
break;
}
}
- } else {
-
replicationSourceManager.logPositionAndCleanOldLogs(entryStream.getCurrentPath(),
- this.replicationQueueInfo.getPeerClusterZnode(),
- entryStream.getPosition(),
- this.replicationQueueInfo.isQueueRecovered(), false);
}
}
- if (batch != null && (!batch.getLastSeqIds().isEmpty() ||
batch.getNbEntries() > 0)) {
- if (LOG.isTraceEnabled()) {
- LOG.trace(String.format("Read %s WAL entries eligible for
replication",
- batch.getNbEntries()));
- }
- entryBatchQueue.put(batch);
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace(String.format("Read %s WAL entries eligible for
replication",
+ batch.getNbEntries()));
+ }
+
+ updateBatch(entryStream, batch, hasNext);
+ if (isShippable(batch)) {
sleepMultiplier = 1;
- } else { // got no entries and didn't advance position in WAL
- LOG.trace("Didn't read any new entries from WAL");
- if (replicationQueueInfo.isQueueRecovered()) {
- // we're done with queue recovery, shut ourself down
+ entryBatchQueue.put(batch);
+ if (!batch.hasMoreEntries()) {
+ // we're done with queue recovery, shut ourselves down
setReaderRunning(false);
- // shuts down shipper thread immediately
- entryBatchQueue.put(batch != null ? batch
- : new WALEntryBatch(replicationBatchCountCapacity,
entryStream.getCurrentPath()));
- } else {
- Thread.sleep(sleepForRetries);
}
+ } else {
Review comment:
Ok, so _batch.hasMoreEntries()_ returns true if this is isn't a recovered
queue.
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