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IDS Forum

Re: BTSA1 IndexInput EOF error

Posted By: Mark Ashworth
Date: Tuesday, 15 March 2016, at 2:58 p.m.

In Response To: BTSA1 IndexInput EOF error (MICHAEL HOFFMAN)

Hi Michael,

The BTSA1 error is generated when the CLucene Open Source storage=20
interface detects an IO problem. the addition message: IndexInput read=20
past EOF +is generated "short" read from an index file (for example it=20
expects to read 16 bytes and gets something less than 16 bytes). It was=20
a seen in the first releases of BTS (11.10/11.50) but I have not seen it=20
reported in 11.70 or 12.10 defect.. Have you seen any additional messages =

in the online log at the time of the error like a no space message on a=20
sbspace or tempsbspace.=20

The storage interface is used for both the persistent storage of the=20
index, the temp storage (in temp sbspace/sbspace or in memory) used to=20
modify the index. If the error is happening while reading the persistent=20
storage, then you could see it on queries too.

I don't have any work around to this problem since its an error you should =

never see. I can only offer some generic solutions to try to resolve the=20

Compact the index:

begin work;

execute function bts=5Findex=5Fcompact('your index name');

commit on success, rollback on failure.

Essentially bts=5Findex=5Fcompact() will only compact the index if there we=
deletions done since the last compact operation. If you do not delete=20
rows from the table, the compact operation is a no-op.

The last option to try is to drop and recreate the bts index.

If you can generate a repro of the problem, I would open an PMR get=20
support to open a product defect so we can investigate why CLucene is=20
generating the error.

-- Mark.
Mark Ashworth=20
Office phone: +1 (905) 413-5033=20
Check out my blog=20

Date: 03/14/2016 08:18 PM
Subject: BTSA1 IndexInput EOF error [36739]
Sent by:

Hi All,=20
Strange one here. Informix 12.1.FC4 on Solaris 10.=20

I have 5 different instances with various forms of a database utilizing a=20
index. Nothing is different across the instances with the index or the=20
in question.=20

A programmer is trying to do an INSERT into the table with the BTS index,=20
is receiving the following error **in only 1 instance**. The other 4=20
work perfectly fine.=20
INSERT INTO name=5Fdtl=20
(nm=5Fid, nm=5Ftyp, first=5Fnm, middle=5Fnm, last=5Fnm, full=5Fnm, org=5Fnm=
srch=5Ffirst=5Fnm, srch=5Fmiddle=5Fnm, srch=5Flast=5Fnm, srch=5Ffull=5Fnm, =
ce=5Fid, add=5Fdtm, add=5Fby, mod=5Fdtm, mod=5Fby, pgm=5Fnm)=20
SELECT 0, nm=5Ftyp, first=5Fnm, middle=5Fnm, last=5Fnm, full=5Fnm, org=5Fnm=
srch=5Ffirst=5Fnm, srch=5Fmiddle=5Fnm, srch=5Flast=5Fnm, srch=5Ffull=5Fnm, =
163361, add=5Fdtm, add=5Fby, mod=5Fdtm, mod=5Fby, 't3124'=20
FROM name=5Fdtl=20
WHERE nm=5Fid =3D 89094;=20

(BTSA1) - bts clucene error: IO error: IndexInput read past EOF=20

The full=5Fnm column (varchar 150) has the bts index on it.=20

Running the Select returns the appropriate record.=20

I did find this thread, but it does not address our specific issue -- we=20
no problems with space and there are no errors in the message log.=20

Any ideas? What else would you need to help diagnose the issue?=20

Mike Hoffman=20


Forum Note: Use "Reply" to post a response in the discussion forum.=20

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