Github user Vimal-Das commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/123#discussion_r77435539
--- Diff:
core/src/main/java/org/apache/carbondata/core/carbon/querystatistics/DriverQueryStatisticsRecorder.java
---
@@ -78,106 +82,142 @@ public synchronized void
recordStatisticsForDriver(QueryStatistic statistic, Str
*/
public void logStatisticsAsTableDriver() {
synchronized (lock) {
- String tableInfo = collectDriverStatistics();
- if (null != tableInfo) {
- LOGGER.statistic(tableInfo);
+ for (String key: queryStatisticsMap.keySet()) {
+ // print
sql_parse_t,load_meta_t,block_allocation_t,block_identification_t
+ // or just print block_allocation_t,block_identification_t
+ if (queryStatisticsMap.get(key).size() >= 2) {
--- End diff --
The call can return null, because the keyset obtained reflects the state of
map when the .keySet() method was called, later changes in the map will not be
reflected. So, if the element is removed in the meantime, get() can return null.
Solution: use an iterator over entrySet()
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