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https://issues.apache.org/jira/browse/DRILL-8372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Turton closed DRILL-8372.
-------------------------------
Resolution: Fixed
> Unfreed buffers when running a LIMIT 0 query over delimited text
> ----------------------------------------------------------------
>
> Key: DRILL-8372
> URL: https://issues.apache.org/jira/browse/DRILL-8372
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Text & CSV
> Affects Versions: 1.21.0
> Reporter: James Turton
> Assignee: James Turton
> Priority: Major
> Fix For: 1.21.0
>
>
> With the following data layout
> {code:java}
> /tmp/foo
> ├──a
> │ └──test_data.csvh
> └──b
> └──test_data.csvh {code}
> a LIMIT 0 query over it results in unfreed buffer errors.
> {code:java}
> apache drill (dfs.tmp)> select * from `foo` limit 0;
> Error: SYSTEM ERROR: IllegalStateException: Allocator[op:0:0:4:EasySubScan]
> closed with outstanding buffers allocated (3).
> Allocator(op:0:0:4:EasySubScan) 1000000/299008/3182592/10000000000
> (res/actual/peak/limit)
> child allocators: 0
> ledgers: 3
> ledger[113] allocator: op:0:0:4:EasySubScan), isOwning: true, size:
> 262144, references: 1, life: 277785186322881..0, allocatorManager: [109,
> life: 277785186258906..0] holds 1 buffers.
> DrillBuf[142], udle: [110 0..262144]
> ledger[114] allocator: op:0:0:4:EasySubScan), isOwning: true, size:
> 32768, references: 1, life: 277785186463824..0, allocatorManager: [110, life:
> 277785186414654..0] holds 1 buffers.
> DrillBuf[143], udle: [111 0..32768]
> ledger[112] allocator: op:0:0:4:EasySubScan), isOwning: true, size: 4096,
> references: 1, life: 277785186046095..0, allocatorManager: [108, life:
> 277785185921147..0] holds 1 buffers.
> DrillBuf[141], udle: [109 0..4096]
> reservations: 0 {code}
>
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