[incubator-iotdb] branch mmanager_refactor updated (9cd68b4 -> 9ca8dd2)

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sunzesong pushed a change to branch mmanager_refactor
in repository https://gitbox.apache.org/repos/asf/incubator-iotdb.git.


 discard 9cd68b4  refactor MTree
     add 9ca8dd2  Remove hasChildren() method

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Summary of changes:
 .../org/apache/iotdb/db/engine/StorageEngine.java  |   5 +-
 .../engine/storagegroup/StorageGroupProcessor.java |   7 +-
 .../org/apache/iotdb/db/metadata/MManager.java     |  69 ++--
 .../java/org/apache/iotdb/db/metadata/MTree.java   | 393 +++++++++++++--------
 .../org/apache/iotdb/db/metadata/MetaUtils.java    |   2 +-
 .../iotdb/db/metadata/mnode/InternalMNode.java     |  36 +-
 .../apache/iotdb/db/metadata/mnode/LeafMNode.java  |  32 +-
 .../org/apache/iotdb/db/metadata/mnode/MNode.java  |  36 +-
 .../iotdb/db/metadata/mnode/StorageGroupMNode.java |  22 +-
 .../apache/iotdb/db/qp/executor/PlanExecutor.java  |  13 +-
 .../org/apache/iotdb/db/utils/SchemaUtils.java     |   4 +-
 .../iotdb/db/engine/MetadataManagerHelper.java     |  39 +-
 .../db/engine/cache/DeviceMetaDataCacheTest.java   |  13 +-
 .../storagegroup/StorageGroupProcessorTest.java    |   4 +-
 .../engine/storagegroup/TsFileProcessorTest.java   |  10 +-
 .../org/apache/iotdb/db/metadata/MTreeTest.java    |   6 +-
 .../org/apache/iotdb/db/metadata/MetadataTest.java |  87 +++++
 .../tsfile/common/constant/TsFileConstant.java     |   1 +
 18 files changed, 529 insertions(+), 250 deletions(-)
 create mode 100644 server/src/test/java/org/apache/iotdb/db/metadata/MetadataTest.java