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Posted to common-commits@hadoop.apache.org by ay...@apache.org on 2020/08/08 09:14:29 UTC
[hadoop] branch trunk updated: HDFS-15443. Setting
dfs.datanode.max.transfer.threads to a very small value can cause strange
failure. Contributed by AMC-team.
This is an automated email from the ASF dual-hosted git repository.
ayushsaxena pushed a commit to branch trunk
in repository https://gitbox.apache.org/repos/asf/hadoop.git
The following commit(s) were added to refs/heads/trunk by this push:
new c2a1765 HDFS-15443. Setting dfs.datanode.max.transfer.threads to a very small value can cause strange failure. Contributed by AMC-team.
c2a1765 is described below
commit c2a17659d1d48407edf437131783b653dbc87bc1
Author: Ayush Saxena <ay...@apache.org>
AuthorDate: Sat Aug 8 14:33:53 2020 +0530
HDFS-15443. Setting dfs.datanode.max.transfer.threads to a very small value can cause strange failure. Contributed by AMC-team.
---
.../java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java
index 7faf210..43d292c 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java
@@ -188,6 +188,9 @@ class DataXceiverServer implements Runnable {
this.maxXceiverCount =
conf.getInt(DFSConfigKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_KEY,
DFSConfigKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_DEFAULT);
+ Preconditions.checkArgument(this.maxXceiverCount >= 1,
+ DFSConfigKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_KEY +
+ " should not be less than 1.");
this.estimateBlockSize = conf.getLongBytes(DFSConfigKeys.DFS_BLOCK_SIZE_KEY,
DFSConfigKeys.DFS_BLOCK_SIZE_DEFAULT);
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