Hello Jenkins,
I'd like you to reexamine a change. Please visit
https://asterix-gerrit.ics.uci.edu/1056
to look at the new patch set (#12).
Change subject: ASTERIXDB-1566: Fixed External Hash Group By to conform to the
memory budget
......................................................................
ASTERIXDB-1566: Fixed External Hash Group By to conform to the memory budget
- External Hash Group By now conforms to the memory budget
(compiler.groupmemory)
- The number of hash entries (hash table size) is calculated based on an
estimation of the aggregated
tuple size and possible hash values for the given field size in that tuple.
- Garbage Collection feature has been added to SerializableHashTable. For
external hash group-by,
whenever we spill a data partition to the disk, we also check the ratio of
garbage in the hash table.
If it's greater than the given threshold, we conduct a GC on Hash Table.
Change-Id: I2b323e9a2141b4c1dd1652a360d2d9354d3bc3f5
---
M
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
M
hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/SetAlgebricksPhysicalOperatorsRule.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/DeallocatableFramePool.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/IFramePool.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/IPartitionedTupleBufferManager.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/PreferToSpillFullyOccupiedFramePolicy.java
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hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/VPartitionTupleBufferManager.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/buffermanager/VariableFramePool.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/HashSpillableTableFactory.java
M
hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/ISpillableTable.java
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hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/external/ExternalHashGroupBy.java
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hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/structures/ISerializableTable.java
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hyracks-fullstack/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/structures/SerializableHashTable.java
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hyracks-fullstack/hyracks/hyracks-dataflow-std/src/test/java/org/apache/hyracks/dataflow/std/structures/SerializableHashTableTest.java
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hyracks-fullstack/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/org/apache/hyracks/tests/unit/AbstractExternalGroupbyTest.java
15 files changed, 817 insertions(+), 180 deletions(-)
git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb
refs/changes/56/1056/12
--
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I2b323e9a2141b4c1dd1652a360d2d9354d3bc3f5
Gerrit-PatchSet: 12
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Taewoo Kim <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Jianfeng Jia <[email protected]>
Gerrit-Reviewer: Michael Blow <[email protected]>
Gerrit-Reviewer: Taewoo Kim <[email protected]>
Gerrit-Reviewer: Till Westmann <[email protected]>
Gerrit-Reviewer: Wenhai Li <[email protected]>
Gerrit-Reviewer: Yingyi Bu <[email protected]>
