From: | S K <extsknk(at)gmail(dot)com> |
---|---|
To: | Kris Jurka <books(at)ejurka(dot)com> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Transient runtime error: java.lang.NegativeArraySizeException from org.postgresql.core.PGStream.ReceiveTupleV3(PGStream.java:349) ... |
Date: | 2010-07-02 02:42:21 |
Message-ID: | AANLkTinFlgcDfy5LBspONv4EXjWb4oq19Jx5X_34INHm@mail.gmail.com |
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Thread: | |
Lists: | pgsql-jdbc |
Thanks for your replies.
I followed Sam's suggestion and upgraded the jdbc driver to the latest
version.
It has been more than a week and problem did not recur. I'm assuming the
upgrade
fixed the issue (I saw in the release notes a cryptic note indicating fixes
for data transformation).
On Thu, Jul 1, 2010 at 6:27 PM, Kris Jurka <books(at)ejurka(dot)com> wrote:
>
>
> On Tue, 22 Jun 2010, S K wrote:
>
>
>> Our application has been in production for a couple of years. Recent
>> investigation into a problem revealed the following error started a few
>> months back. I restarted the application, but the error appears after a
>> few
>> days and the thread dies.
>>
>> Caused by: java.lang.NegativeArraySizeException
>> at org.postgresql.core.PGStream.ReceiveTupleV3(PGStream.java:349)
>>
>> atorg.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.j
>> ava:1306)
>>
>> atorg.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192
>> )
>>
>> atorg.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.
>> java:451)
>>
>> atorg.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2S
>> tatement.java:350)
>>
>> atorg.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2State
>> ment.java:254)
>>
>
> I haven't seen an error like this before. It most likely indicates that
> the driver has lost protocol sync with the server and is reading the wrong
> part of the message. This is difficult to debug because it's unknown how
> far back synchronization was lost. To try to debug this I would modify the
> driver to log the negative array size value and as much of the message parts
> I could find around it. That may give some clues as to why the driver is
> confused. Additionally, I would try to determine the triggering query and
> see if I could reproduce it.
>
> Kris Jurka
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