[GitHub] [hadoop] karthikhw commented on a change in pull request #2728: HDFS-15865 Interrupt DataStreamer thread if no ack

[GitBox <gi...@apache.org>]

karthikhw commented on a change in pull request #2728:
URL: https://github.com/apache/hadoop/pull/2728#discussion_r617066237



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File path: hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java
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@@ -895,6 +895,8 @@ void waitForAckedSeqno(long seqno) throws IOException {
     try (TraceScope ignored = dfsClient.getTracer().
         newScope("waitForAckedSeqno")) {
       LOG.debug("{} waiting for ack for: {}", this, seqno);
+      int dnodes = nodes != null ? nodes.length : 3;
+      int writeTimeout = dfsClient.getDatanodeWriteTimeout(dnodes);

Review comment:
       Not much troubleshooting in Hive @sodonnel.  It looks whole HS2 instance was hung. It didn't accept any new connections. 




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