Re: What are the risk of running into "Unmap hack not supported on this platform"

2019-08-28 Thread Shawn Heisey
On 8/28/2019 1:58 PM, Pushkar Raste wrote: What does this exception really affect. I believe it is related in some way to how Lucene uses Java's MMAP capability to access data on disk. The MMAP functionality that Lucene uses required changes to properly support later Java versions. There w

Re: What are the risk of running into "Unmap hack not supported on this platform"

2019-08-28 Thread Jörn Franke
It is simply a risk. It is not tested. Any functionality may fail eventually or have unknown side effects in the long run. It is also not clear to me why you want to update Java, but not Solr. If you want the latest security fixes, bug fixes and new features then I would go first for a new Solr

Re: What are the risk of running into "Unmap hack not supported on this platform"

2019-08-28 Thread Pushkar Raste
I understand that the problem will not be fixed. What I am trying to understand is even with the exception (the only exception I saw after running my Solr4 cluster on JDK11 for 4 weeks), I am able index and query documents just fine. What does this exception really affect. On Wed, Aug 28, 2019 at

Re: What are the risk of running into "Unmap hack not supported on this platform"

2019-08-28 Thread Shawn Heisey
On 8/27/2019 8:22 AM, Pushkar Raste wrote: I am trying to run Solr 4 on JDK11, although this version is not supported on JDK11 it seems to be working fine except for the error/exception "Unmap hack not supported on this platform". What the risks/downsides of running into this. The first version

Re: What are the risk of running into "Unmap hack not supported on this platform"

2019-08-28 Thread Pushkar Raste
Can someone help me with this? On Tue, Aug 27, 2019 at 10:22 AM Pushkar Raste wrote: > Hi, > I am trying to run Solr 4 on JDK11, although this version is not supported > on JDK11 it seems to be working fine except for the error/exception "Unmap > hack not supported on this platform". > What the

What are the risk of running into "Unmap hack not supported on this platform"

2019-08-27 Thread Pushkar Raste
Hi, I am trying to run Solr 4 on JDK11, although this version is not supported on JDK11 it seems to be working fine except for the error/exception "Unmap hack not supported on this platform". What the risks/downsides of running into this.