Mailing list for the Sedna XML Database ()

Malcolm Davis | 8 May 2012 05:01

SEDNA Message: ERROR SE3007

>From time to time, the following error message occurs.

ru.ispras.sedna.driver.DriverException: SEDNA Message: ERROR SE3007
Failed to receive a message.
	at ru.ispras.sedna.driver.NetOps.readInt(NetOps.java:242)
	at ru.ispras.sedna.driver.NetOps.readMsg(NetOps.java:259)
	at ru.ispras.sedna.driver.NetOps.readStringItem(NetOps.java:425)
	at
ru.ispras.sedna.driver.SednaStatementImpl.executeResponseAnalyze(SednaStatem
entImpl.java:132)
	at
ru.ispras.sedna.driver.SednaStatementImpl.execute(SednaStatementImpl.java:11
4)
	at
ru.ispras.sedna.driver.SednaStatementImpl.execute(SednaStatementImpl.java:38
)

The filed failed to receive a message seems to be inconsistent.

The failed XQuery request will work fine later.

The request is made from one Linux system to another Linux system running
SEDNA.

The request is single threaded.

Log file: 
This sounds weird, but could there be a pause on the server while another
log file is being built?
I noticed that request starts in 1 log file, but then does not show up in

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Ivan Shcheklein | 10 May 2012 12:15

Re: SEDNA Message: ERROR SE3007

Hi Malcolm,

The filed failed to receive a message seems to be inconsistent.
The failed XQuery request will work fine later.

Looks like problem with network. Are you sure that connection is stable? Have you looked at dmesg/syslog on both systems?

Send us also Sedna event logs after such failure.

Log file:
This sounds weird, but could there be a pause on the server while another
log file is being built?
I noticed that request starts in 1 log file, but then does not show up in
the subsequent (next) log file as I was expecting.

Is this that moment you got the error on the client? Do you mean that event log misses some entries (queries)?

Timeout:
Is there a request time setting?

Yep, you can set query timeout. But by default it is infinite. See there http://sedna.org/one-page/AdminGuide.html#x1-150002.4 QUERY_TIMEOUT option.

Ivan Shcheklein,

Sedna Team

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