Steps for phase 1
Phase 2:
| Status | Assigned | Task | ||
|---|---|---|---|---|
| Migrated | gitlab-migration | T3431 Implement a MongoDB backend for SWH-provenance | ||
| Migrated | gitlab-migration | T3555 Re-factor the MongoDB backend | ||
| Migrated | gitlab-migration | T3557 Run experiments against the MongoDB backend | ||
| Migrated | gitlab-migration | T3561 Implement the initial MonogDB backend with a simple data model |
Mongo engine
db.serverStatus().storageEngine
"name" : "wiredTiger", "supportsCommittedReads" : true, "oldestRequiredTimestampForCrashRecovery" : Timestamp(0, 0), "supportsPendingDrops" : true, "dropPendingIdents" : NumberLong(0), "supportsSnapshotReadConcern" : true, "readOnly" : false, "persistent" : true, "backupCursorOpen" : false, "supportsResumableIndexBuilds" : true
Data model
initial
content {
id: sha1
ts // optional
revision: {<ref revision str>: [<ref path>]}
directory: {<ref directory str>: [<ref path>]}
}
directory {
id: sha1
ts //optional
revision: {<ref revision str>: [<ref path>]}
}
revision {
id
ts - optional
preferred <ref origin> //optinal
origin [<ref origin>]
revision [<ref revisions>]
origin {
id
url
}
path {
path
}Python interface
Will use pymongo, the low level driver to interface with the db.
db version v5.0.1
Build Info: {
"version": "5.0.1",
"gitVersion": "318fd9cabc59dc9651f3189b622af6e06ab6cd33",
"openSSLVersion": "OpenSSL 1.1.1f 31 Mar 2020",
"modules": [],
"allocator": "tcmalloc",
"environment": {
"distmod": "ubuntu2004",
"distarch": "x86_64",
"target_arch": "x86_64"
}
}