Error accessing dremio session

I am getting this error after re-starting the Dremio server. Snapshot below.

Looking at some of the files in the ./dremio/log, I see an error which points towards the reflection manager:

2018-05-19T12:23:22.211+0000: 11.150: [GC (Allocation Failure) [PSYoungGen: 508416K->10800K(735232K)] 521496K->23888K(844288K), 0.0095259 secs] [Times: user=0.01 sys=0.01, real=0.01 secs]
2018-05-19T12:23:24.210+0000: 13.149: [GC (Allocation Failure) [PSYoungGen: 734768K->23541K(749568K)] 747856K->58222K(858624K), 0.0275216 secs] [Times: user=0.04 sys=0.01, real=0.03 secs]
2018-05-19T12:23:25.256+0000: 14.195: [GC (Metadata GC Threshold) [PSYoungGen: 334659K->12120K(1039360K)] 369339K->50288K(1148416K), 0.0160343 secs] [Times: user=0.04 sys=0.00, real=0.02 secs]
2018-05-19T12:23:25.272+0000: 14.211: [Full GC (Metadata GC Threshold) [PSYoungGen: 12120K->0K(1039360K)] [ParOldGen: 38168K->29484K(155648K)] 50288K->29484K(1195008K), [Metaspace: 58189K->58167K(1101824K)], 0.1705392 secs] [Times: user=0.56 sys=0.00, real=0.17 secs]
2018-05-19T12:23:51.763+0000: 40.702: [GC (Allocation Failure) [PSYoungGen: 1013760K->33249K(1047040K)] 1043244K->69986K(1202688K), 0.0358391 secs] [Times: user=0.09 sys=0.02, real=0.04 secs]

Any thoughts ?


Can you share server.out and server.log please?