mmiklavc commented on issue #1483: METRON-2217 Migrate current HBase client from HTableInterface to Table URL: https://github.com/apache/metron/pull/1483#issuecomment-523588870 > Hbaseconnections are thread-safe objects. Setting up a HBaseConnection is pretty resource intensive. If you are authenticating with a static identity that is not going to change (i.e. a service account), and you are constantly interacting with HBase, then I believe it is recommended that you keep the HBaseConnection object around in a cache or context, and reuse it to pull out Table and Mutation objects. Yes, that is what we're doing here. The connection model differs subtly from a standard request/response lifecycle web app in that we don't need to open/close the connections. They are bound to the process on startup for the duration of the program's execution. There should be no instance where we are left with a leaked connection because we're only opening a new one when the given thread does not already have an open connection. This generally only happens during application initialization/startup for us.
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