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new 046a620 HDFS-16355. Improve the description of
dfs.block.scanner.volume.bytes.per.second (#3724)
046a620 is described below
commit 046a6204b4a895b98ccd41dde1c9524a6bb0ea31
Author: GuoPhilipse <[email protected]>
AuthorDate: Sun Mar 27 21:23:48 2022 +0800
HDFS-16355. Improve the description of
dfs.block.scanner.volume.bytes.per.second (#3724)
Co-authored-by: gf13871 <[email protected]>
Signed-off-by: Akira Ajisaka <[email protected]>
---
.../hadoop-hdfs/src/main/resources/hdfs-default.xml | 2 +-
.../hadoop/hdfs/server/datanode/TestBlockScanner.java | 16 +++++++++++-----
2 files changed, 12 insertions(+), 6 deletions(-)
diff --git
a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
index d49800c..d45f8eb 100755
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
@@ -1651,7 +1651,7 @@
<name>dfs.block.scanner.volume.bytes.per.second</name>
<value>1048576</value>
<description>
- If this is 0, the DataNode's block scanner will be disabled. If this
+ If this is configured less than or equal to zero, the DataNode's block
scanner will be disabled. If this
is positive, this is the number of bytes per second that the DataNode's
block scanner will try to scan from each volume.
</description>
diff --git
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockScanner.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockScanner.java
index e1473fb..4251c15 100644
---
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockScanner.java
+++
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockScanner.java
@@ -282,11 +282,17 @@ public class TestBlockScanner {
public void testDisableVolumeScanner() throws Exception {
Configuration conf = new Configuration();
disableBlockScanner(conf);
- TestContext ctx = new TestContext(conf, 1);
- try {
- Assert.assertFalse(ctx.datanode.getBlockScanner().isEnabled());
- } finally {
- ctx.close();
+ try(TestContext ctx = new TestContext(conf, 1)) {
+ assertFalse(ctx.datanode.getBlockScanner().isEnabled());
+ }
+ }
+
+ @Test(timeout=60000)
+ public void testDisableVolumeScanner2() throws Exception {
+ Configuration conf = new Configuration();
+ conf.setLong(DFS_BLOCK_SCANNER_VOLUME_BYTES_PER_SECOND, -1L);
+ try(TestContext ctx = new TestContext(conf, 1)) {
+ assertFalse(ctx.datanode.getBlockScanner().isEnabled());
}
}
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