Rahul Challapalli created DRILL-5466:
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Summary: Cancelling a query caused "DrillBuf refCnt has gone
negative" error
Key: DRILL-5466
URL: https://issues.apache.org/jira/browse/DRILL-5466
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.10.0
Reporter: Rahul Challapalli
Attachments: createViewsParquet.sql, ref_negative.log,
ref_negative.profile
git.commit.id.abbrev=38ef562
The below query was running on a tpcds sf1 data set. I cancelled it after 9
seconds and below is the message I got
{code}
alter session set `planner.enable_decimal_data_type` = true;
ALTER SESSION SET `exec.sort.disable_managed` = false;
alter session set `planner.width.max_per_node` = 1;
alter session set `planner.disable_exchanges` = true;
alter session set `planner.width.max_per_query` = 1;
alter session set `planner.memory.max_query_memory_per_node` = 200435456;
alter session set `planner.enable_hashjoin` = false;
SELECT dt.d_year,
item.i_brand_id brand_id,
item.i_brand brand,
Sum(ss_ext_discount_amt) sum_agg
FROM date_dim dt,
store_sales,
item
WHERE dt.d_date_sk = store_sales.ss_sold_date_sk
AND store_sales.ss_item_sk = item.i_item_sk
AND item.i_manufact_id = 427
AND dt.d_moy = 11
GROUP BY dt.d_year,
item.i_brand,
item.i_brand_id
ORDER BY dt.d_year,
sum_agg DESC,
brand_id;
Error: Unexpected RuntimeException: java.lang.IllegalStateException:
DrillBuf[7530] refCnt has gone negative. Buffer Info: ledger[3661] allocator:
ROOT), isOwning: false, size: 1, references: -1, life:
8258809446482809..8258817912668200, allocatorManager: [3661, life:
8258809446399747..8258817913039953] (state=,code=0)
{code}
Surprisingly there is no trace of the exception in the logs. I attached the
log, profile, and view definition files. Let me know if you have any questions
The data set can be downloaded from
https://s3.amazonaws.com/apache-drill/files/tpcds/tpcds_sf1_parquet.tar.gz
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