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HBASE-25640 Support hbase rpc compression for remote rpc only #3113

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HBASE-25640 Support hbase rpc compression for remote rpc only #3113

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14 changes: 13 additions & 1 deletion hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/RpcConnection.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.provider.SaslClientAuthenticationProvider;
import org.apache.hadoop.hbase.security.provider.SaslClientAuthenticationProviders;
import org.apache.hadoop.hbase.util.Addressing;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.io.compress.CompressionCodec;
Expand Down Expand Up @@ -89,7 +90,18 @@ protected RpcConnection(Configuration conf, HashedWheelTimer timeoutTimer, Conne
MetricsConnection metrics) throws IOException {
this.timeoutTimer = timeoutTimer;
this.codec = codec;
this.compressor = compressor;
if (compressor != null) {
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@ndimiduk ndimiduk Apr 5, 2021

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nit: no need to check if compressor is null because you never read it, and subsequent code is apparently fine with a null value.

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@huaxiangsun huaxiangsun Apr 6, 2021

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Checking if compressor is null is that it can avoid a dns resolution if compressor is null (no compression is configured), which is the common use case.

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@ndimiduk ndimiduk Apr 7, 2021

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Ah, okay. A comment to this effect would help the casual reader.

// Only enable compression for remote rpcs.
InetSocketAddress remoteAddr = Address.toSocketAddress(remoteId.getAddress());
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@ndimiduk ndimiduk Apr 5, 2021

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nit: this would be easier to read if you extract the isLocal(ConnectionId) logic into an external method. Then you can have a simpler conditional clause. Something like,

    this.compressor = isLocal(remoteId) ? null : compressor;

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@huaxiangsun huaxiangsun Apr 6, 2021

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will do.

if (!remoteAddr.isUnresolved() && Addressing.isLocalAddress(remoteAddr.getAddress())) {
this.compressor = null;
} else {
this.compressor = compressor;
}
} else {
this.compressor = null;
}

this.conf = conf;
this.metrics = metrics;
User ticket = remoteId.getTicket();
Expand Down