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https://issues.apache.org/jira/browse/KUDU-3295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Redriver closed KUDU-3295.
--------------------------
> kudu client cannot read if one of tablet replica is unhealthy
> -------------------------------------------------------------
>
> Key: KUDU-3295
> URL: https://issues.apache.org/jira/browse/KUDU-3295
> Project: Kudu
> Issue Type: Bug
> Components: client, java
> Affects Versions: 1.11.0, 1.12.0, 1.11.1, 1.13.0, 1.14.0, 1.15.0
> Reporter: Redriver
> Priority: Critical
> Fix For: 1.16.0
>
>
> I found this issue when one of my tserver was down, as a result, DNS resolver
> failed and the tablet replicas on that server cannot access. When I use kudu
> java API to scan the table, the client complains. That is unexpected for only
> one tserver crashed which blocks the read.
> {color:#1d1c1d}the number of replicas does not equal the number of
> servers{color}
> {noformat}
> Caused by: java.lang.IllegalArgumentException: the number of replicas does
> not equal the number of servers
> at
> org.apache.kudu.shaded.com.google.common.base.Preconditions.checkArgument(Preconditions.java:142)
> at org.apache.kudu.client.RemoteTablet.<init>(RemoteTablet.java:84)
> at
> org.apache.kudu.client.AsyncKuduClient.discoverTablets(AsyncKuduClient.java:2414)
> at
> org.apache.kudu.client.AsyncKuduClient$MasterLookupCB.call(AsyncKuduClient.java:2301)
> at
> org.apache.kudu.client.AsyncKuduClient$MasterLookupCB.call(AsyncKuduClient.java:2282)
> at com.stumbleupon.async.Deferred.doCall(Deferred.java:1280)
> at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1259)
> at com.stumbleupon.async.Deferred.callback(Deferred.java:1002)
> at org.apache.kudu.client.KuduRpc.handleCallback(KuduRpc.java:277)
> at org.apache.kudu.client.KuduRpc.callback(KuduRpc.java:324)
> at org.apache.kudu.client.RpcProxy.responseReceived(RpcProxy.java:321)
> at org.apache.kudu.client.RpcProxy.access$000(RpcProxy.java:64)
> at org.apache.kudu.client.RpcProxy$1.call(RpcProxy.java:158)
> at org.apache.kudu.client.RpcProxy$1.call(RpcProxy.java:154)
> at org.apache.kudu.client.Connection.channelRead0(Connection.java:362)
> ...
> {noformat}
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