[SENTRY-1872] Check if a Sentry server is accessible before connecting to it

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.0.0
• Component/s: Sentry
• Assignee: Arjun Mishra
• Reporter: Arjun Mishra
• Created: 07/Aug/17 21:11
• Updated: 13/Dec/18 18:59
• Resolved: 13/Dec/18 18:59

Description

For Sentry HA, if one of the server is unreachable for any reason, we would still try to connect to it, and only switch to other server after a timeout exception is thrown. We should instead check if the server is reachable first before we try connecting to it