cuijianwei created HBASE-12609:
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Summary: Consider bandwidth throttling in
ReplicationSource.readAllEntriesToReplicateOrNextFile
Key: HBASE-12609
URL: https://issues.apache.org/jira/browse/HBASE-12609
Project: HBase
Issue Type: Improvement
Components: Replication
Affects Versions: 0.98.8
Reporter: cuijianwei
Priority: Minor
The push size in ReplicationSource.shipEdits is controlled by
'replicationQueueSizeCapacity' and 'replicationQueueNbCapacity'. When the push
size is much bigger than throttler's bandwidth(replication throttler is
enabled), ReplicationSource will have a outgoing bandwidth peak followed by a
period of sleep controlled by the throttler. How about considering bandwidth
throttling in ReplicationSource.readAllEntriesToReplicateOrNextFile? such as
the following code:
{code}
// Stop if too many entries or too big
long bandwidth =
this.conf.getLong("replication.source.per.peer.node.bandwidth", 0);
if ((bandwidth > 0 && currentSize > bandwidth) || // ==> also consider
bandwidth throttling
currentSize >= this.replicationQueueSizeCapacity ||
entries.size() >= this.replicationQueueNbCapacity) {
break;
}
{code}
Then, ReplicationSource will have more steady outgoing bandwidth.
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