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Merge pull request #16 from LosD/feature/incremental-update

Incremental loading of Github events and issues.
latest commit fb5ec3fcf7
Mihnea Dobrescu-Balaur mihneadb authored

README.md

elasticsearch-river-github

Elasticsearch river for GitHub data. Fetches all of the following for a given GitHub repo:

Works for private repos as well if you provide authentication.

Easy install

Assuming you have elasticsearch's bin folder in your PATH:

plugin -i com.ubervu/elasticsearch-river-github/1.7.1

Otherwise, you have to find the directory yourself. It should be /usr/share/elasticsearch/bin on Ubuntu.

Adding the river

curl -XPUT localhost:9200/_river/my_gh_river/_meta -d '{
    "type": "github",
    "github": {
        "owner": "gabrielfalcao",
        "repository": "lettuce",
        "interval": 60,
        "authentication": {
            "username": "MYUSER", # or token
            "password": "MYPASSWORD" # or x-oauth-basic when using a token
        }
        "endpoint": "https://api.somegithub.com" # optional, use it only for non github.com
    }
}'

interval is optional, given in seconds and changes how often the river looks for new data. Since 1.7.1 the default value has been reduced to one minute as we now only load issues and events that has changed, which should decrease API calls and improve the time to update quite significantly. The actual polling interval will be affected by GitHub's minimum allowed polling interval, which is normally 60 seconds, but may increase when servers are busy.

authentication is optional and helps with the API rate limit (5000 requests/hour instead of 60 requests/hour) and when accessing private data. You can use your own GitHub credentials or a token. When using a token, fill in the token as the username and x-oauth-basic as the password, as the docs mention.

If you do not use authentication, you may want to set interval to a higher value, like 900 (every 15 minutes), as the GitHub rate limit will probably be breached when using low values. This is not recommended if you require the GitHub events without holes, as Github only allows access to the last 300 events. In that case, authenticating is highly recommended. This will probably change in a later version, at least for repositories without too much traffic, as we should be able to check for changes before loading most types of entries.

Deleting the river

curl -XDELETE localhost:9200/_river/my_gh_river

Indexes and types

The data will be stored in an index of format "%s&%s" % (owner, repo), i.e. gabrielfalcao&lettuce.

For every API event type, there will be an elasticsearch type of the same name - i.e. ForkEvent.

Issue data will be stored with the IssueData type. Pull request data will be stored with the PullRequestData type. Milestone data will be stored with the MilestoneData type.

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