Hi Noel,
I do have connection.setAutoCommit() to false.
But I am not sure what you mean by ".... read the LOB completely here......
"
I am getting the exception while reading
resultSet.getString("CLOB_COLUMN_NAME")
connection.commit() is not making any difference for me.
This being related to concurrency is a bit difficult to reproduce on
standalone test/example.
Could you please elaborate more on keeping the transaction open. I do have
the read connection open. (not calling connection.close() )
Following is the trace that I have trace.db
12-28 14:57:52 jdbc[12]: exception
org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException:
org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob entry: 18928""
[90028-176]"; "lob: null table: -1 id: 18928" [90031-176]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:344)
at org.h2.message.DbException.get(DbException.java:167)
at org.h2.message.DbException.convertIOException(DbException.java:329)
at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:395)
at org.h2.value.ValueLobDb.getReader(ValueLobDb.java:378)
at org.h2.value.ValueLobDb.getString(ValueLobDb.java:293)
at org.h2.jdbc.JdbcResultSet.getString(JdbcResultSet.java:304)
at
com.mchange.v2.c3p0.impl.NewProxyResultSet.getString(NewProxyResultSet.java:908)
at com.xApp.p.h2.d.h2.assembleResultSet(h2.java:389)
at com.xApp.p.h2.d.h2.getbykey(h2.java:240)
at com.xApp.p.common.sql.sql.getEntryByKey(sql.java:41)
at com.xApp.p.common.dxe.lambda$10(dxe.java:210)
at com.xApp.p.taf.createDataTransactionAndReturn(taf.java:156)
at com.xApp.p.common.bxe.createTransactionAndReturn(bxe.java:176)
at com.xApp.p.common.dxe.getEntryByKey(dxe.java:207)
at com.xApp.datatables.dmingle.addOrUpdateDataTableEntry(dmingle.java:1266)
at com.xApp.datatables.dmingle.AddOrUpdateDataTableEntry(dmingle.java:439)
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
com.xApp.common.processors.ReflectionProcessor.processService(ReflectionProcessor.java:261)
at
com.xApp.handlers.ReflectionServiceHandler.processService(ReflectionServiceHandler.java:48)
at com.xApp.mingles.mingle.processServiceRequestDirect(mingle.java:6858)
at com.xApp.mingles.mingle.processServiceRequest(mingle.java:6776)
at com.xApp.dsl.xe.adapters.VirtualFunction.call(VirtualFunction.java:145)
at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:32)
at org.mozilla.javascript.gen.TableUpdate_4._c_script_0(TableUpdate:11)
at org.mozilla.javascript.gen.TableUpdate_4.call(TableUpdate)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3090)
at org.mozilla.javascript.gen.TableUpdate_4.call(TableUpdate)
at org.mozilla.javascript.gen.TableUpdate_4.exec(TableUpdate)
at com.xApp.dsl.xe.dp.exS(dp.java:167)
at com.xApp.dsl.handleSer.processService(handleSer.java:37)
at com.xApp.mingles.async.AH.run(AH.java:47)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception:
"Missing lob entry: 18928" [90028-176]
at org.h2.message.DbException.convertToIOException(DbException.java:363)
at org.h2.store.LobStorageBackend.getInputStream(LobStorageBackend.java:345)
at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:393)
... 32 more
Caused by: org.h2.jdbc.JdbcSQLException: IO Exception: "Missing lob entry:
18928" [90028-176]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:344)
at org.h2.message.DbException.get(DbException.java:178)
at org.h2.message.DbException.get(DbException.java:154)
at
org.h2.store.LobStorageBackend$LobInputStream.<init>(LobStorageBackend.java:667)
at org.h2.store.LobStorageBackend.getInputStream(LobStorageBackend.java:341)
... 33 more
On Wednesday, December 21, 2016 at 7:57:18 PM UTC+5:30, Noel Grandin wrote:
>
> yes, because you are not holding the transaction open while reading the
> LOB, so the LOB is disappearing while you are
> reading it.
>
> i.e.
>
> connection.setAutoCommit(false);
> .... read the LOB completely here......
> connection.commit();
>
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