Fix issues encountered during functional testing #457

Job	Run time
package and cache agent	1m 31s
download and cache middlewares	1m 48s
Test for dubbo (2-5, 0)	10m 34s
Test for dubbo (2-5, 1)	10m 37s
Test for dubbo (2-5, 2)	10m 40s
Test for dubbo (2-5, 3)	10m 12s
Test for dubbo (2-5, 4)	10m 38s
Test for dubbo (2-5, 5)	10m 9s
Test for dubbo (2-5, 6)	10m 32s
Test for dubbo (2-5, 7)	10m 24s
Test for dubbo (2-5, 8)	10m 15s
Test for dubbo (2-5, 9)	10m 4s
Test for dubbo (2-5, 10)	10m 40s
Test for dubbo (2-6, 0)	10m 18s
Test for dubbo (2-6, 1)	10m 22s
Test for dubbo (2-6, 2)	10m 38s
Test for dubbo (2-6, 3)	10m 24s
Test for dubbo (2-6, 4)	10m 14s
Test for dubbo (2-6, 5)	10m 28s
Test for dubbo (2-6, 6)	10m 27s
Test for dubbo (2-6, 7)	10m 39s
Test for dubbo (2-6, 8)	10m 51s
Test for dubbo (2-6, 9)	10m 43s
Test for dubbo (2-6, 10)	10m 51s
Test for dubbo (2-6, 11)	11m 2s
Test for dubbo (2-6, 12)	10m 54s
Test for dubbo (2-7, 0)	10m 56s
Test for dubbo (2-7, 5)	11m 43s
Test for dubbo (2-7, 6)	11m 50s
Test for dubbo (2-7, 7)	11m 27s
Test for dubbo (2-7, 8)	11m 9s
Test for dubbo (2-7, 9)	11m 34s
Test for dubbo (2-7, 10)	11m 11s
Test for dubbo (2-7, 11)	11m 5s
Test for dubbo (2-7, 12)	11m 18s
Test for dubbo (2-6, 10.1)	10m 41s
Test for dubbo (2-7, 4.1)	11m 15s
Test for dubbo (2-7, 13)	11m 10s
Test for dubbo (2-7, 14)	11m 11s
Test for dubbo (2-7, 15)	11m 12s
	6h 53m 37s

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