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docs re: database.connection_timeout and database.max_tries

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Troy McConaghy 2017-03-24 15:38:27 +01:00
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docs/server/source/server-reference/configuration.md
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@ -16,6 +16,8 @@ For convenience, here's a list of all the relevant environment variables (docume
`BIGCHAINDB_DATABASE_PORT`<br> `BIGCHAINDB_DATABASE_PORT`<br>
`BIGCHAINDB_DATABASE_NAME`<br> `BIGCHAINDB_DATABASE_NAME`<br>
`BIGCHAINDB_DATABASE_REPLICASET`<br> `BIGCHAINDB_DATABASE_REPLICASET`<br>
`BIGCHAINDB_DATABASE_CONNECTION_TIMEOUT`<br>
`BIGCHAINDB_DATABASE_MAX_TRIES`<br>
`BIGCHAINDB_SERVER_BIND`<br> `BIGCHAINDB_SERVER_BIND`<br>
`BIGCHAINDB_SERVER_WORKERS`<br> `BIGCHAINDB_SERVER_WORKERS`<br>
`BIGCHAINDB_SERVER_THREADS`<br> `BIGCHAINDB_SERVER_THREADS`<br>
@ -85,9 +87,18 @@ Note how the keys in the list are separated by colons.
``` ```
## database.backend, database.host, database.port, database.name & database.replicaset ## database.*
The database backend to use (`rethinkdb` or `mongodb`) and its hostname, port and name. If the database backend is `mongodb`, then there's a fifth setting: the name of the replica set. If the database backend is `rethinkdb`, you *can* set the name of the replica set, but it won't be used for anything. The settings with names of the form `database.*` are for the database backend
(currently either RethinkDB or MongoDB). They are:
* `database.backend` is either `rethinkdb` or `mongodb`.
* `database.host` is the hostname (FQDN) of the backend database.
* `database.port` is self-explanatory.
* `database.name` is a user-chosen name for the database inside RethinkDB or MongoDB, e.g. `bigchain`.
* `database.replicaset` is only relevant if using MongoDB; it's the name of the MongoDB replica set, e.g. `bigchain-rs`.
* `database.connection_timeout` is the maximum number of milliseconds that BigchainDB will wait before giving up on one attempt to connect to the database backend.
* `database.max_tries` is the maximum number of times that BigchainDB will try to establish a connection with the database backend. If 0, then it will try forever.
**Example using environment variables** **Example using environment variables**
```text ```text
@ -96,6 +107,8 @@ export BIGCHAINDB_DATABASE_HOST=localhost
export BIGCHAINDB_DATABASE_PORT=27017 export BIGCHAINDB_DATABASE_PORT=27017
export BIGCHAINDB_DATABASE_NAME=bigchain export BIGCHAINDB_DATABASE_NAME=bigchain
export BIGCHAINDB_DATABASE_REPLICASET=bigchain-rs export BIGCHAINDB_DATABASE_REPLICASET=bigchain-rs
export BIGCHAINDB_DATABASE_CONNECTION_TIMEOUT=5000
export BIGCHAINDB_DATABASE_MAX_TRIES=3
``` ```
**Default values** **Default values**
@ -105,8 +118,10 @@ If (no environment variables were set and there's no local config file), or you
"database": { "database": {
"backend": "rethinkdb", "backend": "rethinkdb",
"host": "localhost", "host": "localhost",
"port": 28015,
"name": "bigchain", "name": "bigchain",
"port": 28015 "connection_timeout": 5000,
"max_tries": 3
} }
``` ```
@ -115,9 +130,11 @@ If you used `bigchaindb -y configure mongodb` to create a default local config f
"database": { "database": {
"backend": "mongodb", "backend": "mongodb",
"host": "localhost", "host": "localhost",
"name": "bigchain",
"port": 27017, "port": 27017,
"replicaset": "bigchain-rs" "name": "bigchain",
"replicaset": "bigchain-rs",
"connection_timeout": 5000,
"max_tries": 3
} }
``` ```