Repository: phoenix
Updated Branches:
  refs/heads/3.0 401931872 -> c1da4c9f2
  refs/heads/4.0 0585ba4e4 -> 198d749df
  refs/heads/master edf5ec27c -> 3fa1ddccf


PHOENIX-1496 Further reduce work in StatsCollector.


Project: http://git-wip-us.apache.org/repos/asf/phoenix/repo
Commit: http://git-wip-us.apache.org/repos/asf/phoenix/commit/3fa1ddcc
Tree: http://git-wip-us.apache.org/repos/asf/phoenix/tree/3fa1ddcc
Diff: http://git-wip-us.apache.org/repos/asf/phoenix/diff/3fa1ddcc

Branch: refs/heads/master
Commit: 3fa1ddccf782e8b708c3d1f13d7046fd8b511dce
Parents: edf5ec2
Author: Lars Hofhansl <[email protected]>
Authored: Mon Dec 1 20:44:01 2014 -0800
Committer: Lars Hofhansl <[email protected]>
Committed: Mon Dec 1 20:44:01 2014 -0800

----------------------------------------------------------------------
 .../UngroupedAggregateRegionObserver.java       |  4 ++-
 .../schema/stats/StatisticsCollector.java       | 36 +++++++++++++++-----
 2 files changed, 30 insertions(+), 10 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/phoenix/blob/3fa1ddcc/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
----------------------------------------------------------------------
diff --git 
a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
 
b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
index e0ff5b3..ff05dad 100644
--- 
a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
+++ 
b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
@@ -466,7 +466,9 @@ public class UngroupedAggregateRegionObserver extends 
BaseScannerRegionObserver{
                 // when background tasks are updating stats. Instead we track 
the max timestamp of
                 // the cells and use that.
                 long clientTimeStamp = useCurrentTime ? 
TimeKeeper.SYSTEM.getCurrentTime() : StatisticsCollector.NO_TIMESTAMP;
-                StatisticsCollector stats = new 
StatisticsCollector(c.getEnvironment(), table.getNameAsString(), 
clientTimeStamp);
+                StatisticsCollector stats = new StatisticsCollector(
+                        c.getEnvironment(), table.getNameAsString(),
+                        clientTimeStamp, store.getFamily().getName());
                 internalScanner = 
stats.createCompactionScanner(c.getEnvironment().getRegion(), store, scanner);
             } catch (IOException e) {
                 // If we can't reach the stats table, don't interrupt the 
normal

http://git-wip-us.apache.org/repos/asf/phoenix/blob/3fa1ddcc/phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java
----------------------------------------------------------------------
diff --git 
a/phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java
 
b/phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java
index 4123ebe..619684a 100644
--- 
a/phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java
+++ 
b/phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java
@@ -65,8 +65,13 @@ public class StatisticsCollector {
     // Tracks the bytecount per family if it has reached the guidePostsDepth
     private Map<ImmutableBytesPtr, Boolean> familyMap = Maps.newHashMap();
     protected StatisticsWriter statsTable;
+    private Pair<Long,GuidePostsInfo> cachedGps = null;
 
     public StatisticsCollector(RegionCoprocessorEnvironment env, String 
tableName, long clientTimeStamp) throws IOException {
+        this(env, tableName, clientTimeStamp, null);
+    }
+
+    public StatisticsCollector(RegionCoprocessorEnvironment env, String 
tableName, long clientTimeStamp, byte[] family) throws IOException {
         Configuration config = env.getConfiguration();
         int guidepostPerRegion = 
config.getInt(QueryServices.STATS_GUIDEPOST_PER_REGION_ATTRIB, 
                 QueryServicesOptions.DEFAULT_STATS_GUIDEPOST_PER_REGION);
@@ -76,6 +81,14 @@ public class StatisticsCollector {
         // Get the stats table associated with the current table on which the 
CP is
         // triggered
         this.statsTable = StatisticsWriter.newWriter(env, tableName, 
clientTimeStamp);
+        // in a compaction we know the one family ahead of time
+        // pre-populate familyMap and guidePostsMap here
+        if (family != null) {
+            ImmutableBytesPtr cfKey = new ImmutableBytesPtr(family, 0, 
family.length);
+            familyMap.put(cfKey, true);
+            cachedGps = new Pair<Long,GuidePostsInfo>(0L,new GuidePostsInfo(0, 
Collections.<byte[]>emptyList()));
+            guidePostsMap.put(cfKey, cachedGps);
+        }
     }
     
     public long getMaxTimeStamp() {
@@ -192,17 +205,22 @@ public class StatisticsCollector {
         maxTimeStamp = Math.max(maxTimeStamp, timestamp);
     }
     
-    @SuppressWarnings("deprecation")
     public void updateStatistic(KeyValue kv) {
-        ImmutableBytesPtr cfKey = new ImmutableBytesPtr(kv.getBuffer(), 
kv.getFamilyOffset(), kv.getFamilyLength());
-        familyMap.put(cfKey, true);
-        
         maxTimeStamp = Math.max(maxTimeStamp, kv.getTimestamp());
-        // TODO : This can be moved to an interface so that we could collect 
guide posts in different ways
-        Pair<Long,GuidePostsInfo> gps = guidePostsMap.get(cfKey);
-        if (gps == null) {
-            gps = new Pair<Long,GuidePostsInfo>(0L,new GuidePostsInfo(0, 
Collections.<byte[]>emptyList()));
-            guidePostsMap.put(cfKey, gps);
+
+        Pair<Long,GuidePostsInfo> gps;
+        if (cachedGps == null) {
+            ImmutableBytesPtr cfKey = new 
ImmutableBytesPtr(kv.getFamilyArray(), kv.getFamilyOffset(), 
kv.getFamilyLength());
+            familyMap.put(cfKey, true);
+
+            // TODO : This can be moved to an interface so that we could 
collect guide posts in different ways
+            gps = guidePostsMap.get(cfKey);
+            if (gps == null) {
+                gps = new Pair<Long,GuidePostsInfo>(0L,new GuidePostsInfo(0, 
Collections.<byte[]>emptyList()));
+                guidePostsMap.put(cfKey, gps);
+            }
+        } else {
+            gps = cachedGps;
         }
         int kvLength = kv.getLength();
         long byteCount = gps.getFirst() + kvLength;

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