[ http://issues.apache.org/jira/browse/DERBY-1653?page=comments#action_12426962 ] Sunitha Kambhampati commented on DERBY-1653: --------------------------------------------
It would be helpful if you can provide more information -- can you attach the derby.log from when the error happened -- have you tried to stop all processes and then start up again and try to access the database. -- will it be possible to attach the corrupt database to the JIRA? -- which jvm are you using. Thanks. > Database gets corrupt after throwing NPE while reading Binary Stream data, in > chunks > ------------------------------------------------------------------------------------ > > Key: DERBY-1653 > URL: http://issues.apache.org/jira/browse/DERBY-1653 > Project: Derby > Issue Type: Bug > Affects Versions: 10.1.3.1 > Environment: Linux (Debian) Kernel 2.6.16 > Reporter: Dipali Sunkersett > Priority: Critical > > One of the component of our project pushes large text (as a binary stream) > into Derby DB. The other component retrieves these texts in chunks and > process one text at a time to perform some manipulation. After fetching and > processing roughly 30K texts, we get an NPE and the whole DB gets corrupt > after that. We can not connect to that DB again. We use the > "org.apache.derby.jdbc.EmbeddedDriver" for connecton. The stack trace is as > below: > java.lang.NullPointerException > at > org.apache.derby.impl.store.raw.data.BasePage.releaseExclusive(Unknown Source) > at > org.apache.derby.impl.store.raw.data.CachedPage.releaseExclusive(Unknown > Source) > at > org.apache.derby.impl.store.raw.data.StoredPage.releaseExclusive(Unknown > Source) > at org.apache.derby.impl.store.raw.data.BasePage.unlatch(Unknown > Source) > at > org.apache.derby.impl.store.raw.data.OverflowInputStream.fillByteHolder(Unknown > Source) > at > org.apache.derby.impl.store.raw.data.BufferedByteHolderInputStream.available(Unknown > Source) > at java.io.FilterInputStream.available(FilterInputStream.java:146) > at java.io.FilterInputStream.available(FilterInputStream.java:146) > at sun.nio.cs.StreamDecoder$CharsetSD.inReady(StreamDecoder.java:490) > at sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:451) > at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183) > at java.io.InputStreamReader.read(InputStreamReader.java:167) > at java.io.BufferedReader.fill(BufferedReader.java:136) > at java.io.BufferedReader.readLine(BufferedReader.java:299) > at java.io.BufferedReader.readLine(BufferedReader.java:362) > at > com.irm.dag.occcalc.command.CorpusWordPhraseOccCalc.calculateOccurrences(CorpusWordPhraseOccCalc.java:128) > at > com.irm.dag.occcalc.command.CorpusOccCalc.calculate(CorpusOccCalc.java:44) > at > com.irm.dag.occcalc.test.WrapperForOccurrenceCalculator.main(WrapperForOccurrenceCalculator.java:56) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
