mirror of https://github.com/apache/druid.git
64 lines
2.2 KiB
Markdown
64 lines
2.2 KiB
Markdown
---
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layout: doc_page
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---
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# Google Cloud Storage
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To use this extension, make sure to [include](../../operations/including-extensions.html) `druid-google-extensions` extension.
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## Deep Storage
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[Google Cloud Storage](https://cloud.google.com/storage/) is another option for deep storage. This requires some additional druid configuration.
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|Property|Description|Default|Required?|
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|--------|-----------|-------|---------|
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|bucket|Name of the Google Cloud bucket|N/A|yes|
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|prefix|The path where data is located.|N/A|yes|
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## Firehose
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#### StaticGoogleBlobStoreFirehose
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This firehose ingests events, similar to the StaticS3Firehose, but from an Google Cloud Store.
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As with the S3 blobstore, it is assumed to be gzipped if the extension ends in .gz
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Sample spec:
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```json
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"firehose" : {
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"type" : "static-google-blobstore",
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"blobs": [
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{
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"bucket": "foo",
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"path": "/path/to/your/file.json"
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},
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{
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"bucket": "bar",
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"path": "/another/path.json"
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}
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]
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}
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```
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This firehose provides caching and prefetching features. In IndexTask, a firehose can be read twice if intervals or
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shardSpecs are not specified, and, in this case, caching can be useful. Prefetching is preferred when direct scan of objects is slow.
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|property|description|default|required?|
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|--------|-----------|-------|---------|
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|type|This should be `static-google-blobstore`.|N/A|yes|
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|blobs|JSON array of Google Blobs.|N/A|yes|
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|maxCacheCapacityBytes|Maximum size of the cache space in bytes. 0 means disabling cache. Cached files are not removed until the ingestion task completes.|1073741824|no|
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|maxFetchCapacityBytes|Maximum size of the fetch space in bytes. 0 means disabling prefetch. Prefetched files are removed immediately once they are read.|1073741824|no|
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|prefetchTriggerBytes|Threshold to trigger prefetching Google Blobs.|maxFetchCapacityBytes / 2|no|
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|fetchTimeout|Timeout for fetching a Google Blob.|60000|no|
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|maxFetchRetry|Maximum retry for fetching a Google Blob.|3|no|
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Google Blobs:
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|property|description|default|required?|
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|--------|-----------|-------|---------|
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|bucket|Name of the Google Cloud bucket|N/A|yes|
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|path|The path where data is located.|N/A|yes|
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