Fixed error when starting the DbServer
Fixed error when starting the DbServer


Former-commit-id: fcbb22430f88df071cd4745f73833f30d038a26f [formerly fcbb22430f88df071cd4745f73833f30d038a26f [formerly 92eb62a11ba11d45a6a73077f14885d2c0b699f9]]
Former-commit-id: 19cd477a3f9e65728c9fe3576a06213bbe90d74e
Former-commit-id: 40e2f9c4a7ad58968ce455c83aa2e449f1a587f8
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine