HDFS-7977. NFS couldn't take percentile intervals. Contributed by Brandon Li
(cherry picked from commit 570a83ae80
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@ -72,7 +72,6 @@ public class NfsConfigKeys {
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public static final String NFS_HTTPS_ADDRESS_DEFAULT = "0.0.0.0:" + NFS_HTTPS_PORT_DEFAULT;
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public static final String NFS_METRICS_PERCENTILES_INTERVALS_KEY = "nfs.metrics.percentiles.intervals";
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public static final String NFS_METRICS_PERCENTILES_INTERVALS_DEFAULT = "";
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/*
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* HDFS super-user is the user with the same identity as NameNode process
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@ -90,9 +90,9 @@ public class Nfs3Metrics {
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readNanosQuantiles[i] = registry.newQuantiles("readProcessNanos"
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+ interval + "s", "Read process in ns", "ops", "latency", interval);
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writeNanosQuantiles[i] = registry.newQuantiles("writeProcessNanos"
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+ interval + "s", " process in ns", "ops", "latency", interval);
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+ interval + "s", "Write process in ns", "ops", "latency", interval);
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commitNanosQuantiles[i] = registry.newQuantiles("commitProcessNanos"
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+ interval + "s", "Read process in ns", "ops", "latency", interval);
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+ interval + "s", "Commit process in ns", "ops", "latency", interval);
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}
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}
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@ -101,10 +101,9 @@ public class Nfs3Metrics {
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MetricsSystem ms = DefaultMetricsSystem.instance();
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JvmMetrics jm = JvmMetrics.create(gatewayName, sessionId, ms);
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// Percentile measurement is [,,,] by default
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int[] intervals = conf.getInts(conf.get(
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NfsConfigKeys.NFS_METRICS_PERCENTILES_INTERVALS_KEY,
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NfsConfigKeys.NFS_METRICS_PERCENTILES_INTERVALS_DEFAULT));
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// Percentile measurement is [50th,75th,90th,95th,99th] currently
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int[] intervals = conf
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.getInts(NfsConfigKeys.NFS_METRICS_PERCENTILES_INTERVALS_KEY);
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return ms.register(new Nfs3Metrics(gatewayName, sessionId, intervals, jm));
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}
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@ -217,4 +216,4 @@ public class Nfs3Metrics {
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}
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}
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}
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}
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@ -960,6 +960,8 @@ Release 2.7.0 - UNRELEASED
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HDFS-7961. Trigger full block report after hot swapping disk. (Eddy Xu via wang)
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HDFS-7977. NFS couldn't take percentile intervals (brandonli)
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BREAKDOWN OF HDFS-7584 SUBTASKS AND RELATED JIRAS
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HDFS-7720. Quota by Storage Type API, tools and ClientNameNode
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@ -170,6 +170,18 @@ It's strongly recommended for the users to update a few configuration properties
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<value>the_name_of_hdfs_superuser</value>
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</property>
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* Metrics. Like other HDFS daemons, the gateway exposes runtime metrics. It is available at `http://gateway-ip:50079/jmx` as a JSON document.
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The NFS handler related metrics is exposed under the name "Nfs3Metrics". The latency histograms can be enabled by adding the following
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property to hdfs-site.xml file.
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<property>
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<name>nfs.metrics.percentiles.intervals</name>
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<value>100</value>
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<description>Enable the latency histograms for read, write and
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commit requests. The time unit is 100 seconds in this example.
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</description>
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</property>
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* JVM and log settings. You can export JVM settings (e.g., heap size and GC log) in
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HADOOP\_NFS3\_OPTS. More NFS related settings can be found in hadoop-env.sh.
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To get NFS debug trace, you can edit the log4j.property file
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