jixuan1989 commented on a change in pull request #1367:
URL: https://github.com/apache/incubator-iotdb/pull/1367#discussion_r446854041
##########
File path:
server/src/main/java/org/apache/iotdb/db/query/control/QueryResourceManager.java
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@@ -67,29 +69,55 @@
private Map<Long, Set<WeakReference<TsFileResource>>> seqFileNumMap = new
ConcurrentHashMap<>();
private Map<Long, Set<WeakReference<TsFileResource>>> unseqFileNumMap = new
ConcurrentHashMap<>();
private IoTDBConfig config = IoTDBDescriptor.getInstance().getConfig();
+
/**
* Record temporary files used for external sorting.
* <p>
* Key: query job id. Value: temporary file list used for external sorting.
*/
- private Map<Long, List<IExternalSortFileDeserializer>> externalSortFileMap;
+ private final Map<Long, List<IExternalSortFileDeserializer>>
externalSortFileMap;
+
+ private final Map<Long, Long> queryIdEstimatedMemoryMap;
+
+ // current total free memory for reading process(not including the cache
memory)
+ private final AtomicLong totalFreeMemoryForRead;
+
+ // estimated size for one point memory size, the unit is byte
+ private static final long POINT_ESTIMATED_SIZE = 16L;
Review comment:
only works for non-string..
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