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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (OAK-3937) Batch createOrUpdate() may fail with primary key violation
Date Mon, 01 Feb 2016 15:52:40 GMT

    [ https://issues.apache.org/jira/browse/OAK-3937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15126408#comment-15126408
] 

Julian Reschke edited comment on OAK-3937 at 2/1/16 3:52 PM:
-------------------------------------------------------------

I confirm that with Postgres, the updateCount returned in the BatchUpdateException can be
positive, although the rows are not inserted.

It also seems that the proposed patch makes {{concurrentBatchUpdate()}} perform better, but
I still see occasional failures.

EDIT: these failures appear to be causes by CHUNKSIZE being < 100 (the number of documents
being inserted by the test). Using CHUNKSIZE == 128 makes the test pass, making it == 10 makes
it fail more often.


was (Author: reschke):
I confirm that with Postgres, the updateCount returned in the BatchUpdateException can be
positive, although the rows are not inserted.

It also seems that the proposed patch makes {{concurrentBatchUpdate()}} perform better, but
I still see occasional failures.

> Batch createOrUpdate() may fail with primary key violation
> ----------------------------------------------------------
>
>                 Key: OAK-3937
>                 URL: https://issues.apache.org/jira/browse/OAK-3937
>             Project: Jackrabbit Oak
>          Issue Type: Technical task
>          Components: core, rdbmk
>            Reporter: Marcel Reutegger
>            Assignee: Julian Reschke
>             Fix For: 1.4
>
>         Attachments: OAK-3937.patch, rdb-oddity.patch
>
>
> In some cases the batch createOrUpdate() method may fail on RDBMK with a primary key
violation exception.
> {noformat}
> java.lang.AssertionError: org.apache.jackrabbit.oak.plugins.document.DocumentStoreException:
org.h2.jdbc.JdbcBatchUpdateException: Unique index or primary key violation: "PRIMARY_KEY_1
ON PUBLIC.DSTEST_NODES(ID) VALUES ('1:/node-40', 118)"; SQL statement:
> insert into dstest_NODES(ID, MODIFIED, HASBINARY, DELETEDONCE, MODCOUNT, CMODCOUNT, DSIZE,
DATA, BDATA) values (?, ?, ?, ?, ?, ?, ?, ?, ?) [23505-185]
> {noformat}
> See the currently disabled test {{MultiDocumentStoreTest.concurrentBatchUpdate()}}.



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