Andrew Wong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17971 )

Change subject: KUDU-3295: Fix the number of replicas does not equal the number 
of servers
......................................................................


Patch Set 2:

(5 comments)

Thanks for the patch!

http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduClient.java
File java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduClient.java:

http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduClient.java@2374
PS2, Line 2374:           dnsFailedServers.add(addresses.get(0).getHost());
nit: could you add a comment explaining that resolveTS() only resolves the 
first address, which is why we're not adding the rest of the addresses?


http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduClient.java@2417
PS2, Line 2417: if (!lookupExceptions.isEmpty() &&
              :           lookupExceptions.size() == 
tabletPb.getInternedReplicasCount()) {
              :         Status statusIOE = Status.IOError("Couldn't find any 
valid locations, exceptions: " +
              :             lookupExceptions);
              :         throw new NonRecoverableException(statusIOE);
              :       }
              :
Seems like we should be handling the case where all replicas have failed to be 
looked up.


http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/test/java/org/apache/kudu/client/TestAsyncKuduClient.java
File 
java/kudu-client/src/test/java/org/apache/kudu/client/TestAsyncKuduClient.java:

http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/test/java/org/apache/kudu/client/TestAsyncKuduClient.java@200
PS2, Line 200: call discoverTablets
nit: maybe remove this comment, given it doesn't add much context


http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/test/java/org/apache/kudu/client/TestAsyncKuduClient.java@204
PS2, Line 204: Builder
nit: Build

Also, we're only creating one bad location, aren't we? The other locations are 
fine, right?


http://gerrit.cloudera.org:8080/#/c/17971/2/java/kudu-client/src/test/java/org/apache/kudu/client/TestAsyncKuduClient.java@205
PS2, Line 205:     Master.TabletLocationsPB.Builder tabletPb = 
Master.TabletLocationsPB.newBuilder();
nit: while it's nice we can reuse this, it seems less error prone to create a 
new builder in the loop



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I7d2e7d49d234e41e66e9c367e061fb7da32e9b47
Gerrit-Change-Number: 17971
Gerrit-PatchSet: 2
Gerrit-Owner: Hongjiang Zhang <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Hongjiang Zhang <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Tue, 26 Oct 2021 17:19:56 +0000
Gerrit-HasComments: Yes

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