刘珍 created IOTDB-1483:
-------------------------
Summary: Metadata template : LevelCompactionTsFileManagement NPE
Key: IOTDB-1483
URL: https://issues.apache.org/jira/browse/IOTDB-1483
Project: Apache IoTDB
Issue Type: Bug
Components: Schema Manager
Reporter: 刘珍
Attachments: SessionExample.java, config.properties,
image-2021-07-12-13-53-28-470.png
master/0708 18ae729e2792c709b7054cb0de25f4d331d7558e
MAX_HEAP_SIZE="128G"
Use the device template when merging {color:red}LevelCompactionTsFileManagement
get NPE.{color}
2021-07-11 00:31:47,695 [pool-4-IoTDB-Compaction-3] ERROR
o.a.i.d.e.c.l.LevelCompactionTsFileManagement:738 - Error occurred in
Compaction Merge thread
java.lang.NullPointerException: null
at
org.apache.iotdb.db.metadata.MManager.getSeriesSchema(MManager.java:1112)
at
org.apache.iotdb.db.engine.compaction.utils.CompactionUtils.writeByDeserializePageMerge(CompactionUtils.java:204)
at
org.apache.iotdb.db.engine.compaction.utils.CompactionUtils.merge(CompactionUtils.java:406)
at
org.apache.iotdb.db.engine.compaction.level.LevelCompactionTsFileManagement.merge(LevelCompactionTsFileManagement.java:685)
at
org.apache.iotdb.db.engine.compaction.level.LevelCompactionTsFileManagement.merge(LevelCompactionTsFileManagement.java:598)
at
org.apache.iotdb.db.engine.compaction.TsFileManagement$CompactionMergeTask.call(TsFileManagement.java:173)
at
org.apache.iotdb.db.engine.compaction.TsFileManagement$CompactionMergeTask.call(TsFileManagement.java:160)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
!image-2021-07-12-13-53-28-470.png!
复现过程（可减少数据量复现，满足合并条件就可以）：
100 sg/100万device/30 sensor（template）
1. 执行SessionExample
2.运行benchmark
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