[jira] [Commented] (QUICKSTEP-61) SplitRowStore crashes on BulkLoads

["Harshad Deshmukh (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/QUICKSTEP-61?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15622994#comment-15622994 ] 

Harshad Deshmukh commented on QUICKSTEP-61:
-------------------------------------------

Hi [~spehl], did you try debugging with running Quickstep on a single thread? That could take away the concurrency related issues, if any. 

> SplitRowStore crashes on BulkLoads
> ----------------------------------
>
>                 Key: QUICKSTEP-61
>                 URL: https://issues.apache.org/jira/browse/QUICKSTEP-61
>             Project: Apache Quickstep
>          Issue Type: Bug
>          Components: Storage
>         Environment: ubuntu 16, clang-3.8
>            Reporter: Marc Spehlmann
>            Assignee: Marc Spehlmann
>            Priority: Critical
>
> When bulk loading SSB data, we noticed crashes on tables which use SplitRowStores. 
> On SplitRowStoreTupleStorageSubBlock.cpp:393 there is DCHECK which if you change to a CHECK should fail with some regularity when loading a new table. The surprising thing is that this behavior doesn't always happen.
> You can recreate this issue sporadically by running:
> ```
> drop table customer;
> CREATE TABLE customer (
>   c_custkey    INT NOT NULL,
>   c_name       VARCHAR(25) NOT NULL,
>   c_address    VARCHAR(25) NOT NULL,
>   c_city       CHAR(10) NOT NULL,
>   c_nation     CHAR(15) NOT NULL,
>   c_region     CHAR(12) NOT NULL,
>   c_phone      CHAR(15) NOT NULL,
>   c_mktsegment CHAR(10) NOT NULL
> ) WITH BLOCKPROPERTIES (
>   TYPE split_rowstore,
>   BLOCKSIZEMB 4);
> copy customer from 'your_customer_tbl' with (delimiter '|');
> ```
> Failing the check, you will get some error message like
> ~/incubator-quickstep/build$ ./quickstep_cli_shell --storage_path=/home/marc/quickstep_store/ssb100 < q.sql
> Starting Quickstep with 64 worker thread(s) and a 403.10 GB buffer pool
> F1031 17:12:31.258040 91079 SplitRowStoreTupleStorageSubBlock.cpp:393] Check failed: 0 <= remaining_storage_after_inserts (0 vs. -5)
> *** Check failure stack trace: ***
>     @          0x3280daa  (unknown)
>     @          0x3283fec  (unknown)
>     @          0x3a276f5  (unknown)
>     @          0x3a158ca  (unknown)
>     @          0x3a1284b  (unknown)
>     @          0x3a12530  (unknown)
>     @          0x355f0f7  (unknown)
>     @          0x3540f8c  (unknown)
>     @          0x331ae47  (unknown)
>     @          0x329760c  (unknown)
>     @     0x7fdb42c51930  (unknown)
>     @     0x7fdb4344e70a  start_thread
>     @     0x7fdb423b382d  (unknown)
>     @              (nil)  (unknown)
> Aborted (core dumped)
> I am currently working on this issue. Reverting #109 should resolve issues in the mean time.



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