[HBASE-22929] MemStoreLAB ChunkCreator may memory leak

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.2
• Fix Version/s: 3.0.0-alpha-1, 2.3.0, 2.1.7, 2.2.2
• Assignee: ramkrishna.s.vasudevan
• Reporter: Yechao Chen
• Created: 27/Aug/19 08:35
• Updated: 13/Sep/19 11:39
• Resolved: 13/Sep/19 05:11

Description

We use hbase 2.1.2 with memstorelab enable
RegionServer crashed case of oom

I dump the heap ,found the ChunkCreator may be memory leak

The heap is 32GB,
hbase.regionserver.global.memstore.size=0.4,
hbase.hregion.memstore.mslab.enabled=true
hbase.hregion.memstore.chunkpool.initialsize=0.5,
hbase.hregion.memstore.chunkpool.maxsize=1.0
BucketCache with offheap

Issue Links

• is related to: HBASE-20373 Check and forward port HBASE-20322 (RS crash due to CME in StoreScanner)
• is related to: HBASE-20322 CME in StoreScanner causes region server crash
• is related to: HBASE-22072 High read/write intensive regions may cause long crash recovery
• links to: GitHub Pull Request #614
• links to: PR