Murtadha Hubail has uploaded a new change for review.

  https://asterix-gerrit.ics.uci.edu/2362

Change subject: [ASTERIXDB-2276][CONF] Introduce Max Active Writable Datasets
......................................................................

[ASTERIXDB-2276][CONF] Introduce Max Active Writable Datasets

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Introduce number of metadata datasets parameter
  and use it to reserve memory for all metadata
  datasets.
- Default metadata dataset memory component number
  of pages to 32 pages.
- Introduce max active writable datasets and use
  it to automatically calculate the number of pages
  of a user dataset memory component.
- Remve the assumpation of reserving an NC core
  for heartbeats.
- Validate memory configuration early.

Change-Id: I9909c26b1e12b431f913e201d2c3d83769be7269
---
M 
asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/NCApplication.java
M asterixdb/asterix-app/src/main/resources/cc.conf
M asterixdb/asterix-app/src/main/resources/cc2.conf
M asterixdb/asterix-app/src/main/resources/cc3.conf
M 
asterixdb/asterix-app/src/test/java/org/apache/asterix/test/runtime/ClusterStateDefaultParameterTest.java
M 
asterixdb/asterix-app/src/test/java/org/apache/asterix/test/txn/RecoveryManagerTest.java
M asterixdb/asterix-app/src/test/resources/cc-multipart.conf
M asterixdb/asterix-app/src/test/resources/cc-small-txn-log-partition.conf
M asterixdb/asterix-app/src/test/resources/cc.conf
M 
asterixdb/asterix-common/src/main/java/org/apache/asterix/common/config/StorageProperties.java
10 files changed, 51 insertions(+), 54 deletions(-)


  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb 
refs/changes/62/2362/1

diff --git 
a/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/NCApplication.java
 
b/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/NCApplication.java
index a23a763..d33ee42 100644
--- 
a/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/NCApplication.java
+++ 
b/asterixdb/asterix-app/src/main/java/org/apache/asterix/hyracks/bootstrap/NCApplication.java
@@ -224,19 +224,9 @@
     @Override
     public NodeCapacity getCapacity() {
         StorageProperties storageProperties = 
runtimeContext.getStorageProperties();
-        // Deducts the reserved buffer cache size and memory component size 
from the maxium heap size,
-        // and deducts one core for processing heartbeats.
-        long memorySize = Runtime.getRuntime().maxMemory() - 
storageProperties.getBufferCacheSize()
-                - storageProperties.getMemoryComponentGlobalBudget();
-        if (memorySize <= 0) {
-            throw new IllegalStateException("Invalid node memory 
configuration, more memory budgeted than available "
-                    + "in JVM. Runtime max memory: " + 
Runtime.getRuntime().maxMemory() + " Buffer cache size: "
-                    + storageProperties.getBufferCacheSize() + " Memory 
component global budget: "
-                    + storageProperties.getMemoryComponentGlobalBudget());
-        }
+        final long memorySize = 
storageProperties.getJobExecutionMemoryBudget();
         int allCores = Runtime.getRuntime().availableProcessors();
-        int maximumCoresForComputation = allCores > 1 ? allCores - 1 : 
allCores;
-        return new NodeCapacity(memorySize, maximumCoresForComputation);
+        return new NodeCapacity(memorySize, allCores);
     }
 
     private void performLocalCleanUp() throws HyracksDataException {
diff --git a/asterixdb/asterix-app/src/main/resources/cc.conf 
b/asterixdb/asterix-app/src/main/resources/cc.conf
index c5a3fdb..deebe41 100644
--- a/asterixdb/asterix-app/src/main/resources/cc.conf
+++ b/asterixdb/asterix-app/src/main/resources/cc.conf
@@ -37,7 +37,6 @@
 jvm.args=-Xmx4096m 
-Dnode.Resolver="org.apache.asterix.external.util.IdentitiyResolverFactory"
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=16
 storage.memorycomponent.globalbudget=512MB
 
 [cc]
diff --git a/asterixdb/asterix-app/src/main/resources/cc2.conf 
b/asterixdb/asterix-app/src/main/resources/cc2.conf
index 941b6c1..2026ee7 100644
--- a/asterixdb/asterix-app/src/main/resources/cc2.conf
+++ b/asterixdb/asterix-app/src/main/resources/cc2.conf
@@ -37,7 +37,6 @@
 jvm.args=-Xmx4096m 
-Dnode.Resolver="org.apache.asterix.external.util.IdentitiyResolverFactory"
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=16
 storage.memorycomponent.globalbudget=512MB
 
 [cc]
diff --git a/asterixdb/asterix-app/src/main/resources/cc3.conf 
b/asterixdb/asterix-app/src/main/resources/cc3.conf
index 01383ef..91ddb7a 100644
--- a/asterixdb/asterix-app/src/main/resources/cc3.conf
+++ b/asterixdb/asterix-app/src/main/resources/cc3.conf
@@ -37,7 +37,6 @@
 jvm.args=-Xmx4096m 
-Dnode.Resolver="org.apache.asterix.external.util.IdentitiyResolverFactory"
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=16
 storage.memorycomponent.globalbudget=512MB
 
 [cc]
diff --git 
a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/runtime/ClusterStateDefaultParameterTest.java
 
b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/runtime/ClusterStateDefaultParameterTest.java
index f029669..e752493 100644
--- 
a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/runtime/ClusterStateDefaultParameterTest.java
+++ 
b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/runtime/ClusterStateDefaultParameterTest.java
@@ -87,8 +87,8 @@
                 Assert.assertTrue(getValue(row) == maxHeap / 4);
                 matchCount++;
             }
-            if (row.contains("storage.memorycomponent.numpages")) {
-                Assert.assertTrue(getValue(row) == maxHeap / (131072 * 64));
+            if (row.contains("storage.max.active.writable.datasets")) {
+                Assert.assertTrue(getValue(row) == 8);
                 matchCount++;
             }
         }
diff --git 
a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/txn/RecoveryManagerTest.java
 
b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/txn/RecoveryManagerTest.java
index 92e403c..05e5aad 100644
--- 
a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/txn/RecoveryManagerTest.java
+++ 
b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/txn/RecoveryManagerTest.java
@@ -48,10 +48,7 @@
 
     @Before
     public void setUp() throws Exception {
-        // Read default test configurations
-        // Write test config file
-        
integrationUtil.addOption(StorageProperties.Option.STORAGE_MEMORYCOMPONENT_GLOBALBUDGET,
 "128MB");
-        
integrationUtil.addOption(StorageProperties.Option.STORAGE_MEMORYCOMPONENT_NUMPAGES,
 32);
+        
integrationUtil.addOption(StorageProperties.Option.STORAGE_MAX_ACTIVE_WRITABLE_DATASETS,
 20);
         integrationUtil.setGracefulShutdown(false);
         integrationUtil.init(true, TEST_CONFIG_FILE_PATH);
     }
diff --git a/asterixdb/asterix-app/src/test/resources/cc-multipart.conf 
b/asterixdb/asterix-app/src/test/resources/cc-multipart.conf
index f28545d..5cf1bbe 100644
--- a/asterixdb/asterix-app/src/test/resources/cc-multipart.conf
+++ b/asterixdb/asterix-app/src/test/resources/cc-multipart.conf
@@ -38,7 +38,6 @@
 storage.subdir=test_storage
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=32
 storage.memorycomponent.globalbudget=512MB
 
 [cc]
diff --git 
a/asterixdb/asterix-app/src/test/resources/cc-small-txn-log-partition.conf 
b/asterixdb/asterix-app/src/test/resources/cc-small-txn-log-partition.conf
index 0b66cfe..0b2ddbd 100644
--- a/asterixdb/asterix-app/src/test/resources/cc-small-txn-log-partition.conf
+++ b/asterixdb/asterix-app/src/test/resources/cc-small-txn-log-partition.conf
@@ -35,8 +35,8 @@
 jvm.args=-Xmx4096m 
-Dnode.Resolver="org.apache.asterix.external.util.IdentitiyResolverFactory"
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=16
-storage.memorycomponent.globalbudget=512MB
+storage.max.active.writable.datasets=50
+storage.memorycomponent.globalbudget=128MB
 
 [cc]
 address = 127.0.0.1
diff --git a/asterixdb/asterix-app/src/test/resources/cc.conf 
b/asterixdb/asterix-app/src/test/resources/cc.conf
index 3e4ecd9..5cf1bbe 100644
--- a/asterixdb/asterix-app/src/test/resources/cc.conf
+++ b/asterixdb/asterix-app/src/test/resources/cc.conf
@@ -38,7 +38,6 @@
 storage.subdir=test_storage
 storage.buffercache.pagesize=32KB
 storage.buffercache.size=48MB
-storage.memorycomponent.numpages=16
 storage.memorycomponent.globalbudget=512MB
 
 [cc]
diff --git 
a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/config/StorageProperties.java
 
b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/config/StorageProperties.java
index 963f0ca..23e7d75 100644
--- 
a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/config/StorageProperties.java
+++ 
b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/config/StorageProperties.java
@@ -42,16 +42,11 @@
         STORAGE_BUFFERCACHE_MAXOPENFILES(INTEGER, Integer.MAX_VALUE),
         STORAGE_MEMORYCOMPONENT_GLOBALBUDGET(LONG_BYTE_UNIT, 
Runtime.getRuntime().maxMemory() / 4),
         STORAGE_MEMORYCOMPONENT_PAGESIZE(INTEGER_BYTE_UNIT, 
StorageUtil.getIntSizeInBytes(128, KILOBYTE)),
-        STORAGE_MEMORYCOMPONENT_NUMPAGES(INTEGER, 
(Function<IApplicationConfig, Integer>) accessor ->
-        // By default, uses 1/16 of the STORAGE_MEMORYCOMPONENT_GLOBALBUDGET 
for the write buffer
-        // budget for a dataset, including data and indexes.
-        (int) (accessor.getLong(STORAGE_MEMORYCOMPONENT_GLOBALBUDGET) / (16 * 
accessor.getInt(STORAGE_MEMORYCOMPONENT_PAGESIZE)))),
         STORAGE_MEMORYCOMPONENT_NUMCOMPONENTS(INTEGER, 2),
-        STORAGE_METADATA_MEMORYCOMPONENT_NUMPAGES(INTEGER, 
(Function<IApplicationConfig, Integer>) accessor ->
-        // By default, uses the min of 1/64 of the 
STORAGE_MEMORYCOMPONENT_GLOBALBUDGET and 256 pages
-        // for the write buffer budget for a metadata dataset, including data 
and indexes.
-        Math.min((int) (accessor.getLong(STORAGE_MEMORYCOMPONENT_GLOBALBUDGET) 
/ (64 * accessor.getInt(STORAGE_MEMORYCOMPONENT_PAGESIZE))), 256)),
-        STORAGE_LSM_BLOOMFILTER_FALSEPOSITIVERATE(DOUBLE, 0.01d);
+        STORAGE_METADATA_MEMORYCOMPONENT_NUMPAGES(INTEGER, 32),
+        STORAGE_LSM_BLOOMFILTER_FALSEPOSITIVERATE(DOUBLE, 0.01d),
+        STORAGE_METADATA_DATASETS(INTEGER, 14),
+        STORAGE_MAX_ACTIVE_WRITABLE_DATASETS(INTEGER, 8);
 
         private final IOptionType interpreter;
         private final Object defaultValue;
@@ -59,11 +54,6 @@
         <T> Option(IOptionType<T> interpreter, T defaultValue) {
             this.interpreter = interpreter;
             this.defaultValue = defaultValue;
-        }
-
-        <T> Option(IOptionType<T> interpreter, Function<IApplicationConfig, T> 
defaultValueFunction) {
-            this.interpreter = interpreter;
-            this.defaultValue = defaultValueFunction;
         }
 
         @Override
@@ -86,17 +76,16 @@
                             + "of the memory component page size";
                 case STORAGE_MEMORYCOMPONENT_PAGESIZE:
                     return "The page size in bytes for pages allocated to 
memory components";
-                case STORAGE_MEMORYCOMPONENT_NUMPAGES:
-                    return "The number of pages to allocate for a memory 
component.  This budget is shared by all "
-                            + "the memory components of the primary index and 
all its secondary indexes across all I/O "
-                            + "devices on a node.  Note: in-memory components 
usually has fill factor of 75% since "
-                            + "the pages are 75% full and the remaining 25% is 
un-utilized";
                 case STORAGE_MEMORYCOMPONENT_NUMCOMPONENTS:
                     return "The number of memory components to be used per lsm 
index";
                 case STORAGE_METADATA_MEMORYCOMPONENT_NUMPAGES:
                     return "The number of pages to allocate for a metadata 
memory component";
                 case STORAGE_LSM_BLOOMFILTER_FALSEPOSITIVERATE:
                     return "The maximum acceptable false positive rate for 
bloom filters associated with LSM indexes";
+                case STORAGE_METADATA_DATASETS:
+                    return "The number of metadata datasets";
+                case STORAGE_MAX_ACTIVE_WRITABLE_DATASETS:
+                    return "The maximum number of datasets that can be 
concurrently modified";
                 default:
                     throw new IllegalStateException("NYI: " + this);
             }
@@ -114,21 +103,16 @@
 
         @Override
         public String usageDefaultOverride(IApplicationConfig accessor, 
Function<IOption, String> optionPrinter) {
-            switch (this) {
-                case STORAGE_MEMORYCOMPONENT_NUMPAGES:
-                    return "1/16th of the " + 
optionPrinter.apply(Option.STORAGE_MEMORYCOMPONENT_GLOBALBUDGET)
-                            + " value";
-                case STORAGE_METADATA_MEMORYCOMPONENT_NUMPAGES:
-                    return "1/64th of the " + 
optionPrinter.apply(Option.STORAGE_MEMORYCOMPONENT_GLOBALBUDGET)
-                            + " value or 256, whichever is larger";
-                default:
-                    return null;
+            if (this == STORAGE_METADATA_MEMORYCOMPONENT_NUMPAGES) {
+                return "32 pages";
             }
+            return null;
         }
     }
 
     public StorageProperties(PropertiesAccessor accessor) {
         super(accessor);
+        validateMemoryConfig();
     }
 
     public int getBufferCachePageSize() {
@@ -148,7 +132,10 @@
     }
 
     public int getMemoryComponentNumPages() {
-        return accessor.getInt(Option.STORAGE_MEMORYCOMPONENT_NUMPAGES);
+        final long metadataReservedMem = getMetadataReservedMemory();
+        final long globalUserDatasetMem = getMemoryComponentGlobalBudget() - 
metadataReservedMem;
+        final long userDatasetMem = globalUserDatasetMem / 
getMaxActiveWritableDatasets();
+        return (int) (userDatasetMem / getMemoryComponentPageSize());
     }
 
     public int getMetadataMemoryComponentNumPages() {
@@ -170,4 +157,32 @@
     public int getBufferCacheNumPages() {
         return (int) (getBufferCacheSize() / (getBufferCachePageSize() + 
IBufferCache.RESERVED_HEADER_BYTES));
     }
+
+    public long getJobExecutionMemoryBudget() {
+        return Runtime.getRuntime().maxMemory() - getBufferCacheSize() + 
getMemoryComponentGlobalBudget();
+    }
+
+    public int getMaxActiveWritableDatasets() {
+        return accessor.getInt(Option.STORAGE_MAX_ACTIVE_WRITABLE_DATASETS);
+    }
+
+    public int getMetadataDatasets() {
+        return accessor.getInt(Option.STORAGE_METADATA_DATASETS);
+    }
+
+    private long getMetadataReservedMemory() {
+        return (getMetadataMemoryComponentNumPages() * (long) 
getMemoryComponentPageSize()) * getMetadataDatasets();
+    }
+
+    private void validateMemoryConfig() {
+        final long remainingMemory =
+                Runtime.getRuntime().maxMemory() - getBufferCacheSize() - 
getMemoryComponentGlobalBudget();
+        if (remainingMemory <= 0) {
+            final String msg = String.format(
+                    "Invalid node memory configuration, more memory budgeted 
than available in JVM. Runtime max memory:"
+                            + " (%o), Buffer cache memory (%o), memory 
component global budget (%o)",
+                    Runtime.getRuntime().maxMemory(), getBufferCacheSize(), 
getMemoryComponentGlobalBudget());
+            throw new IllegalStateException(msg);
+        }
+    }
 }

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I9909c26b1e12b431f913e201d2c3d83769be7269
Gerrit-PatchSet: 1
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Murtadha Hubail <mhub...@apache.org>

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