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AMQ-7084 - ensure allocated and unused free pages are visible to subsequent transactions, fix and test with test updates to reflect proper usage

This commit is contained in:
gtully 2018-10-23 16:00:57 +01:00
parent fb1e642c15
commit 8a1abd9bb2
6 changed files with 35 additions and 14 deletions
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4
activemq-kahadb-store/src/main/java/org/apache/activemq/store/kahadb/disk/page/Transaction.java
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@ -670,6 +670,8 @@ public class Transaction implements Iterable<Page> {
allocateList.clear();
writes.clear();
writeTransactionId = -1;
} else {
freePages(allocateList);
}
size = 0;
}
@ -692,6 +694,8 @@ public class Transaction implements Iterable<Page> {
allocateList.clear();
writes.clear();
writeTransactionId = -1;
} else {
freePages(allocateList);
}
size = 0;
}

7
activemq-kahadb-store/src/test/java/org/apache/activemq/store/kahadb/disk/index/BTreeIndexTest.java
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@ -57,11 +57,12 @@ public class BTreeIndexTest extends IndexTestSupport {
protected Index<String, Long> createIndex() throws Exception {
long id = tx.allocate().getPageId();
tx.commit();
BTreeIndex<String, Long> index = new BTreeIndex<String,Long>(pf, id);
index.setKeyMarshaller(StringMarshaller.INSTANCE);
index.setValueMarshaller(LongMarshaller.INSTANCE);
index.load(tx);
tx.commit();
return index;
}
@ -231,8 +232,6 @@ public class BTreeIndexTest extends IndexTestSupport {
this.index.load(tx);
long id = tx.allocate().getPageId();
tx.commit();
BTreeIndex<String, String> sindex = new BTreeIndex<String,String>(pf, id);
sindex.setKeyMarshaller(StringMarshaller.INSTANCE);
sindex.setValueMarshaller(StringMarshaller.INSTANCE);
@ -273,7 +272,6 @@ public class BTreeIndexTest extends IndexTestSupport {
this.index.load(tx);
long id = tx.allocate().getPageId();
tx.commit();
BTreeIndex<String, String> sindex = new BTreeIndex<String,String>(pf, id);
sindex.setKeyMarshaller(StringMarshaller.INSTANCE);
@ -364,7 +362,6 @@ public class BTreeIndexTest extends IndexTestSupport {
pf.load();
tx = pf.tx();
long id = tx.allocate().getPageId();
tx.commit();
BTreeIndex<Long, HashSet<String>> test = new BTreeIndex<Long, HashSet<String>>(pf, id);
test.setKeyMarshaller(LongMarshaller.INSTANCE);

5
activemq-kahadb-store/src/test/java/org/apache/activemq/store/kahadb/disk/index/HashIndexBenchMark.java
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@ -27,12 +27,13 @@ public class HashIndexBenchMark extends IndexBenchmark {
Transaction tx = pf.tx();
long id = tx.allocate().getPageId();
tx.commit();
HashIndex<String, Long> index = new HashIndex<String, Long>(pf, id);
index.setKeyMarshaller(StringMarshaller.INSTANCE);
index.setValueMarshaller(LongMarshaller.INSTANCE);
index.load(tx);
tx.commit();
return index;
}

5
activemq-kahadb-store/src/test/java/org/apache/activemq/store/kahadb/disk/index/HashIndexTest.java
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@ -25,13 +25,12 @@ public class HashIndexTest extends IndexTestSupport {
protected Index<String, Long> createIndex() throws Exception {
long id = tx.allocate().getPageId();
tx.commit();
HashIndex<String, Long> index = new HashIndex<String,Long>(pf, id);
index.setBinCapacity(12);
index.setKeyMarshaller(StringMarshaller.INSTANCE);
index.setValueMarshaller(LongMarshaller.INSTANCE);
index.load(tx);
tx.commit();
return index;
}

5
activemq-kahadb-store/src/test/java/org/apache/activemq/store/kahadb/disk/index/ListIndexTest.java
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@ -57,12 +57,11 @@ public class ListIndexTest extends IndexTestSupport {
protected Index<String, Long> createIndex() throws Exception {
long id = tx.allocate().getPageId();
tx.commit();
ListIndex<String, Long> index = new ListIndex<String, Long>(pf, id);
index.setKeyMarshaller(StringMarshaller.INSTANCE);
index.setValueMarshaller(LongMarshaller.INSTANCE);
index.load(tx);
tx.commit();
return index;
}

23
activemq-kahadb-store/src/test/java/org/apache/activemq/store/kahadb/disk/page/PageFileTest.java
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@ -136,7 +136,6 @@ public class PageFileTest extends TestCase {
Transaction tx = pf.tx();
Page page = tx.allocate();
tx.commit();
OutputStream pos = tx.openOutputStream(page, true);
DataOutputStream os = new DataOutputStream(pos);
@ -240,4 +239,26 @@ public class PageFileTest extends TestCase {
pf2.unload();
}
}
public void testAllocatedAndUnusedAreFree() throws Exception {
PageFile pf = new PageFile(new File("target/test-data"), getName());
pf.delete();
pf.load();
Transaction tx = pf.tx();
tx.allocate(10);
tx.commit();
assertEquals(10, pf.getPageCount());
assertEquals(pf.getFreePageCount(), 10);
// free pages should get reused
tx.allocate(10);
tx.rollback();
assertEquals(10, pf.getPageCount());
assertEquals(pf.getFreePageCount(), 10);
}
}