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Posted to issues@hbase.apache.org by "cuijianwei (JIRA)" <ji...@apache.org> on 2014/12/02 05:49:13 UTC
[jira] [Created] (HBASE-12609) Consider bandwidth throttling in
ReplicationSource.readAllEntriesToReplicateOrNextFile
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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