bsglz commented on a change in pull request #1909:
URL: https://github.com/apache/hbase/pull/1909#discussion_r468398061
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/HDFSBlocksDistribution.java
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@@ -280,6 +280,18 @@ public long getBlocksLocalWithSsdWeight(String host) {
private long getBlocksLocalityWeightInternal(String host, Visitor visitor) {
long localityIndex = 0;
HostAndWeight hostAndWeight = this.hostAndWeights.get(host);
+ // Compatible with local mode, see HBASE-24569
+ if (hostAndWeight == null) {
+ String currentHost = "";
+ try {
+ currentHost = DNS.getDefaultHost("default", "default");
Review comment:
Comment above: "In my local env, the code below cost about 1μs~200μs,
avg<5μs, much lesser than 1ms."
```
try {
currentHost = DNS.getDefaultHost("default", "default");
} catch (Exception e) {
// Just ignore, it's ok, avoid too many log info
}
```
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