Raise the default version of Mongo used with Embedded Mongo to 3.5.5

[rajadilipkolli]

The current version of embedded MongoDB is 3.2.2 as minimum version of MongoDB used is 3.8.x . can you please raise embedded MongoDB version as well.

[wilkinsona]

Sounds reasonable to me. We probably should have raised it in 2.0, but better late than never.

[mbhave]

Reopening to investigate timeouts on CI.

[wilkinsona]

I've pushed the changes again to see if it was a one-off problem on Concourse, or something more repeatable. The changes build fine locally for both @mbhave and me.

[wilkinsona]

It appears to have hung again across all 4 builds (Java 8, 9, 10, and 11). Running top having hijacked the container shows three extract-… processes consuming lots of CPU:

  20325 root      10 -10  921200  67388  29544 S 105.6  0.2  12:38.09 extract-c780078                                              
  20361 root      10 -10  919140  67756  29944 S 102.7  0.2  12:32.80 extract-0b35940                                              
  20396 root      10 -10  920168  67376  29728 S 100.3  0.2  12:33.71 extract-e160fac  

I believe the extract- processes are Mongo due to the filename used by Embedded Mongo when it installs it.

[wilkinsona]

I've been unable to get a stack trace from the java process. kill -3 appears to have no effect and the container becomes unresponsive when I try to use jstack.

[wilkinsona]

Let's give 3.5.5 a shot.