### osdir.com

```This must be something specific to Cassandra Unit. Will check

On Mon, Jul 30, 2018, 08:59 Sergey Nuyanzin <snuyanzin@xxxxxxxxx> wrote:

> There is one more strange thing (at least on Windows): while building a
> file with name ".toDelete" is generated under calcite\cassandra and it's
> not removed by the end of tests
> Is there a way to make cassandra generates these files in target directory
> e.g.?
>
>
>
> On Mon, Jul 30, 2018 at 3:52 PM, Andrei Sereda <andrei@xxxxxxxxx> wrote:
>
> > Most of the problems are during test init Phase. Most likely with version
> > string (eg. 11-ea for JDK11).
> > I'll fix that.
> >
> >
> > On Mon, Jul 30, 2018 at 8:16 AM Michael Mior <mmior@xxxxxxxxxx> wrote:
> >
> > > I tested myself a fair bit under Ubuntu before pushing this and didn't
> > see
> > > any of these issues myself. That said, I agree that it's important the
> > test
> > > suite be stable. I'm fine with reverting for now or (more preferably
> IMO)
> > > just disabling these tests by default.
> > >
> > > --
> > > Michael Mior
> > > mmior@xxxxxxxxxx
> > >
> > >
> > >
> > > Le lun. 30 juil. 2018 à 00:59, Julian Hyde <jhyde@xxxxxxxxxx> a écrit
> :
> > >
> > > > I ran on several JDK versions, all on Ubuntu Linux. The machine was
> > > > fairly heavily loaded (I was copying one filesystem to another at the
> > > > time).
> > > >
> > > > Here's the error from OpenJDK10:
> > > >
> > > > [INFO] Running org.apache.calcite.test.CassandraAdapterTest
> > > > [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time
> > > > elapsed: 0.001 s <<< FAILURE! - in
> > > > [ERROR] org.apache.calcite.test.CassandraAdapterTest  Time elapsed:
> > > > 0.001 s  <<< ERROR!
> > > > java.lang.ExceptionInInitializerError
> > > >         at
> > > >
> > > >         at
> > > >
> > > > Caused by: java.lang.StringIndexOutOfBoundsException: begin 0, end
> -1,
> > > > length 5
> > > >         at
> > > >
> > > >         at
> > > >
> > > >
> > > > Here's the error in JDK 11:
> > > >
> > > > [INFO] Running org.apache.calcite.test.CassandraAdapterTest
> > > > [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time
> > > > elapsed: 0 s <<< FAILURE! - in
> > > > [ERROR] org.apache.calcite.test.CassandraAdapterTest  Time elapsed: 0
> > > > s  <<< ERROR!
> > > > java.lang.ExceptionInInitializerError
> > > >         at
> > > >
> > > >         at
> > > >
> > > >         at
> > > >
> > > >
> > > > Here's the failure from JDK 9:
> > > >
> > > > [INFO] Running org.apache.calcite.test.CassandraAdapterTest
> > > > [ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time
> > > > elapsed: 0.001 s <<< FAILURE! - in
> > > > [ERROR] org.apache.calcite.test.CassandraAdapterTest  Time elapsed:
> > > > 0.001 s  <<< FAILURE!
> timeout
> > > >
> > > > Here's the failure from JDK 10:
> > > >
> > > > [INFO] Running org.apache.calcite.jdbc.CalciteRemoteDriverTest
> > > > [ERROR] Tests run: 28, Failures: 1, Errors: 0, Skipped: 0, Time
> > > > elapsed: 0.642 s <<< FAILURE! - in
> > > > org.apache.calcite.jdbc.CalciteRemoteDriverTest
> > > > [ERROR]
> > > > testRemoteExecuteQuery(org.apache.calcite.jdbc.
> > CalciteRemoteDriverTest)
> > > >  Time elapsed: 0.047 s  <<< FAILURE!
> > > > java.lang.AssertionError:
> > > >
> > > > Expected: "EXPR\$0=1; EXPR\$1=a\nEXPR\$0=null; EXPR\$1=b"
> > > >      but: was ""
> > > >         at
> > > >
> > > org.apache.calcite.jdbc.CalciteRemoteDriverTest.testRemoteExecuteQuery(
> > CalciteRemoteDriverTest.java:280)
> > > >
> > > > In conclusion: It's worrying that the suite shows 4 different cracks
> > > > under 4 different JDKs. Clearly the load on my machine was making
> > > > problems worse, and granted, the problems are just testing problems,
> > > > not real bugs. But flaky test suites waste time and effort. There are
> > > > indications that the new embedded Cassandra test is more flaky than
> > > > most.
> > > >
> > > > Julian
> > > >
> > > >
> > > > On Sun, Jul 29, 2018 at 11:33 AM, Andrei Sereda <andrei@xxxxxxxxx>
> > > wrote:
> > > > > What version of java / OS / maven do you have ? What is your maven
> > > > command
> > > > > ?
> > > > >
> > > > > Things pass for me on MacOS X java 8,9 and 10.
> > > > >
> > > > > On Sun, Jul 29, 2018 at 2:05 PM Julian Hyde <jhyde@xxxxxxxxxx>
> > wrote:
> > > > >
> > > > >> I'm seeing the following error when I run the tests on bd0e14002
> > > > >> origin/master. Anyone else see it?
> > > > >>
> > > > >> [INFO] Running org.apache.calcite.test.CassandraAdapterTest
> > > > >> [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time
> > > > >> elapsed: 0.001 s <<< FAILURE! - in
> > > > >> org.apache.calcite.test.CassandraAdapterTest
> > > > >> [ERROR] org.apache.calcite.test.CassandraAdapterTest  Time
> elapsed:
> > > > >> 0.001 s  <<< ERROR!
> > > > >> java.lang.ExceptionInInitializerError
> > > > >>         at
> > > > >>
> > > >
> > > > >>         at
> > > > >>
> > > >
> > > > >> Caused by: java.lang.StringIndexOutOfBoundsException: begin 0, end
> > -1,
> > > > >> length 5
> > > > >>         at
> > > > >>
> > > >
> > > > >>         at
> > > > >>
> > > >