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Posted to commits@cassandra.apache.org by br...@apache.org on 2014/04/04 01:35:18 UTC
[1/2] git commit: getRecentLatency returns zero instead of infinity
Repository: cassandra
Updated Branches:
refs/heads/trunk 9baf92af2 -> ca75b97e5
getRecentLatency returns zero instead of infinity
Patch by Benedict, reviewed by brandonwilliams for CASSANDRA-6920
Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/ca75b97e
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/ca75b97e
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/ca75b97e
Branch: refs/heads/trunk
Commit: ca75b97e59b56768741f7ba0a7f2ff206588c573
Parents: 28d8216
Author: Brandon Williams <br...@apache.org>
Authored: Thu Apr 3 18:30:43 2014 -0500
Committer: Brandon Williams <br...@apache.org>
Committed: Thu Apr 3 18:31:39 2014 -0500
----------------------------------------------------------------------
src/java/org/apache/cassandra/metrics/LatencyMetrics.java | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/cassandra/blob/ca75b97e/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/metrics/LatencyMetrics.java b/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
index b53449c..b456e2a 100644
--- a/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
+++ b/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
@@ -98,10 +98,12 @@ public class LatencyMetrics
}
@Deprecated
- public double getRecentLatency()
+ public synchronized double getRecentLatency()
{
long ops = latency.count();
long n = totalLatency.count();
+ if (ops == lastOpCount)
+ return 0;
try
{
return ((double) n - lastLatency) / (ops - lastOpCount);
[2/2] git commit: Revert "Fix LatencyMetrics returning infinity."
Posted by br...@apache.org.
Revert "Fix LatencyMetrics returning infinity."
This reverts commit 5e51aa4e6d1d868bb82a1aa2ffaed4613b24ffc1.
Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/28d82160
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/28d82160
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/28d82160
Branch: refs/heads/trunk
Commit: 28d82160fc9e1082755ff770d189dacbabbeef80
Parents: 9baf92a
Author: Brandon Williams <br...@apache.org>
Authored: Thu Apr 3 18:29:58 2014 -0500
Committer: Brandon Williams <br...@apache.org>
Committed: Thu Apr 3 18:31:39 2014 -0500
----------------------------------------------------------------------
.../apache/cassandra/metrics/LatencyMetrics.java | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/cassandra/blob/28d82160/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/metrics/LatencyMetrics.java b/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
index ef1dee9..b53449c 100644
--- a/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
+++ b/src/java/org/apache/cassandra/metrics/LatencyMetrics.java
@@ -85,11 +85,8 @@ public class LatencyMetrics
public void addNano(long nanos)
{
// convert to microseconds. 1 millionth
- synchronized (this)
- {
- latency.update(nanos, TimeUnit.NANOSECONDS);
- totalLatency.inc(nanos / 1000);
- }
+ latency.update(nanos, TimeUnit.NANOSECONDS);
+ totalLatency.inc(nanos / 1000);
totalLatencyHistogram.add(nanos / 1000);
recentLatencyHistogram.add(nanos / 1000);
}
@@ -103,13 +100,8 @@ public class LatencyMetrics
@Deprecated
public double getRecentLatency()
{
- long ops = 0;
- long n = 0;
- synchronized (this)
- {
- ops = latency.count();
- n = totalLatency.count();
- }
+ long ops = latency.count();
+ long n = totalLatency.count();
try
{
return ((double) n - lastLatency) / (ops - lastOpCount);