パッケージの使用
org.elasticsearch.snapshots

org.elasticsearch.snapshotsを使用しているパッケージ

パッケージ	説明
org.elasticsearch.action.admin.cluster.snapshots.create
org.elasticsearch.action.admin.cluster.snapshots.delete
org.elasticsearch.action.admin.cluster.snapshots.get
org.elasticsearch.action.admin.cluster.snapshots.restore
org.elasticsearch.action.admin.cluster.snapshots.status
org.elasticsearch.index.shard
org.elasticsearch.repositories
org.elasticsearch.repositories.blobstore
org.elasticsearch.snapshots

org.elasticsearch.action.admin.cluster.snapshots.createにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
SnapshotInfo Information about snapshot
SnapshotsService Service responsible for creating snapshots A typical snapshot creating process looks like this: On the master node the SnapshotsService.createSnapshot(SnapshotRequest, CreateSnapshotListener) is called and makes sure that no snapshots is currently running and registers the new snapshot in cluster state When cluster state is updated the SnapshotsService.beginSnapshot(ClusterState, SnapshotsInProgress.Entry, boolean, CreateSnapshotListener) method kicks in and initializes the snapshot in the repository and then populates list of shards that needs to be snapshotted in cluster state Each data node is watching for these shards and when new shards scheduled for snapshotting appear in the cluster state, data nodes start processing them through SnapshotShardsService.processIndexShardSnapshots(ClusterChangedEvent) method Once shard snapshot is created data node updates state of the shard in the cluster state using the SnapshotShardsService.updateIndexShardSnapshotStatus(org.elasticsearch.cluster.metadata.SnapshotId, org.elasticsearch.index.shard.ShardId, org.elasticsearch.cluster.SnapshotsInProgress.ShardSnapshotStatus) method When last shard is completed master node in SnapshotShardsService.innerUpdateSnapshotState(org.elasticsearch.snapshots.SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest) method marks the snapshot as completed After cluster state is updated, the SnapshotsService.endSnapshot(SnapshotsInProgress.Entry) finalizes snapshot in the repository, notifies all SnapshotsService.snapshotCompletionListeners that snapshot is completed, and finally calls SnapshotsService.removeSnapshotFromClusterState(SnapshotId, SnapshotInfo, Throwable) to remove snapshot from cluster state

org.elasticsearch.action.admin.cluster.snapshots.deleteにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明

SnapshotsService Service responsible for creating snapshots A typical snapshot creating process looks like this: On the master node the SnapshotsService.createSnapshot(SnapshotRequest, CreateSnapshotListener) is called and makes sure that no snapshots is currently running and registers the new snapshot in cluster state When cluster state is updated the SnapshotsService.beginSnapshot(ClusterState, SnapshotsInProgress.Entry, boolean, CreateSnapshotListener) method kicks in and initializes the snapshot in the repository and then populates list of shards that needs to be snapshotted in cluster state Each data node is watching for these shards and when new shards scheduled for snapshotting appear in the cluster state, data nodes start processing them through SnapshotShardsService.processIndexShardSnapshots(ClusterChangedEvent) method Once shard snapshot is created data node updates state of the shard in the cluster state using the SnapshotShardsService.updateIndexShardSnapshotStatus(org.elasticsearch.cluster.metadata.SnapshotId, org.elasticsearch.index.shard.ShardId, org.elasticsearch.cluster.SnapshotsInProgress.ShardSnapshotStatus) method When last shard is completed master node in SnapshotShardsService.innerUpdateSnapshotState(org.elasticsearch.snapshots.SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest) method marks the snapshot as completed After cluster state is updated, the SnapshotsService.endSnapshot(SnapshotsInProgress.Entry) finalizes snapshot in the repository, notifies all SnapshotsService.snapshotCompletionListeners that snapshot is completed, and finally calls SnapshotsService.removeSnapshotFromClusterState(SnapshotId, SnapshotInfo, Throwable) to remove snapshot from cluster state

org.elasticsearch.action.admin.cluster.snapshots.getにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
SnapshotInfo Information about snapshot
SnapshotsService Service responsible for creating snapshots A typical snapshot creating process looks like this: On the master node the SnapshotsService.createSnapshot(SnapshotRequest, CreateSnapshotListener) is called and makes sure that no snapshots is currently running and registers the new snapshot in cluster state When cluster state is updated the SnapshotsService.beginSnapshot(ClusterState, SnapshotsInProgress.Entry, boolean, CreateSnapshotListener) method kicks in and initializes the snapshot in the repository and then populates list of shards that needs to be snapshotted in cluster state Each data node is watching for these shards and when new shards scheduled for snapshotting appear in the cluster state, data nodes start processing them through SnapshotShardsService.processIndexShardSnapshots(ClusterChangedEvent) method Once shard snapshot is created data node updates state of the shard in the cluster state using the SnapshotShardsService.updateIndexShardSnapshotStatus(org.elasticsearch.cluster.metadata.SnapshotId, org.elasticsearch.index.shard.ShardId, org.elasticsearch.cluster.SnapshotsInProgress.ShardSnapshotStatus) method When last shard is completed master node in SnapshotShardsService.innerUpdateSnapshotState(org.elasticsearch.snapshots.SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest) method marks the snapshot as completed After cluster state is updated, the SnapshotsService.endSnapshot(SnapshotsInProgress.Entry) finalizes snapshot in the repository, notifies all SnapshotsService.snapshotCompletionListeners that snapshot is completed, and finally calls SnapshotsService.removeSnapshotFromClusterState(SnapshotId, SnapshotInfo, Throwable) to remove snapshot from cluster state

org.elasticsearch.action.admin.cluster.snapshots.restoreにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
RestoreInfo Information about successfully completed restore operation.
RestoreService Service responsible for restoring snapshots Restore operation is performed in several stages.

org.elasticsearch.action.admin.cluster.snapshots.statusにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
SnapshotShardsService This service runs on data and master nodes and controls currently snapshotted shards on these nodes.
SnapshotsService Service responsible for creating snapshots A typical snapshot creating process looks like this: On the master node the SnapshotsService.createSnapshot(SnapshotRequest, CreateSnapshotListener) is called and makes sure that no snapshots is currently running and registers the new snapshot in cluster state When cluster state is updated the SnapshotsService.beginSnapshot(ClusterState, SnapshotsInProgress.Entry, boolean, CreateSnapshotListener) method kicks in and initializes the snapshot in the repository and then populates list of shards that needs to be snapshotted in cluster state Each data node is watching for these shards and when new shards scheduled for snapshotting appear in the cluster state, data nodes start processing them through SnapshotShardsService.processIndexShardSnapshots(ClusterChangedEvent) method Once shard snapshot is created data node updates state of the shard in the cluster state using the SnapshotShardsService.updateIndexShardSnapshotStatus(org.elasticsearch.cluster.metadata.SnapshotId, org.elasticsearch.index.shard.ShardId, org.elasticsearch.cluster.SnapshotsInProgress.ShardSnapshotStatus) method When last shard is completed master node in SnapshotShardsService.innerUpdateSnapshotState(org.elasticsearch.snapshots.SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest) method marks the snapshot as completed After cluster state is updated, the SnapshotsService.endSnapshot(SnapshotsInProgress.Entry) finalizes snapshot in the repository, notifies all SnapshotsService.snapshotCompletionListeners that snapshot is completed, and finally calls SnapshotsService.removeSnapshotFromClusterState(SnapshotId, SnapshotInfo, Throwable) to remove snapshot from cluster state

org.elasticsearch.index.shardにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
RestoreService Service responsible for restoring snapshots Restore operation is performed in several stages.

org.elasticsearch.repositoriesにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
Snapshot Represent information about snapshot
SnapshotShardFailure Stores information about failures that occurred during shard snapshotting process

org.elasticsearch.repositories.blobstoreにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
Snapshot Represent information about snapshot
SnapshotShardFailure Stores information about failures that occurred during shard snapshotting process

org.elasticsearch.snapshotsにより使用されるorg.elasticsearch.snapshotsのクラス

クラスと説明
RestoreInfo Information about successfully completed restore operation.
RestoreService.RestoreCompletionResponse
RestoreService.RestoreRequest Restore snapshot request
Snapshot Represent information about snapshot
SnapshotException Generic snapshot exception
SnapshotInfo Information about snapshot
SnapshotShardFailure Stores information about failures that occurred during shard snapshotting process
SnapshotsService Service responsible for creating snapshots A typical snapshot creating process looks like this: On the master node the SnapshotsService.createSnapshot(SnapshotRequest, CreateSnapshotListener) is called and makes sure that no snapshots is currently running and registers the new snapshot in cluster state When cluster state is updated the SnapshotsService.beginSnapshot(ClusterState, SnapshotsInProgress.Entry, boolean, CreateSnapshotListener) method kicks in and initializes the snapshot in the repository and then populates list of shards that needs to be snapshotted in cluster state Each data node is watching for these shards and when new shards scheduled for snapshotting appear in the cluster state, data nodes start processing them through SnapshotShardsService.processIndexShardSnapshots(ClusterChangedEvent) method Once shard snapshot is created data node updates state of the shard in the cluster state using the SnapshotShardsService.updateIndexShardSnapshotStatus(org.elasticsearch.cluster.metadata.SnapshotId, org.elasticsearch.index.shard.ShardId, org.elasticsearch.cluster.SnapshotsInProgress.ShardSnapshotStatus) method When last shard is completed master node in SnapshotShardsService.innerUpdateSnapshotState(org.elasticsearch.snapshots.SnapshotShardsService.UpdateIndexShardSnapshotStatusRequest) method marks the snapshot as completed After cluster state is updated, the SnapshotsService.endSnapshot(SnapshotsInProgress.Entry) finalizes snapshot in the repository, notifies all SnapshotsService.snapshotCompletionListeners that snapshot is completed, and finally calls SnapshotsService.removeSnapshotFromClusterState(SnapshotId, SnapshotInfo, Throwable) to remove snapshot from cluster state
SnapshotsService.CreateSnapshotListener Listener for create snapshot operation
SnapshotsService.DeleteSnapshotListener Listener for delete snapshot operation
SnapshotsService.SnapshotCompletionListener
SnapshotsService.SnapshotRequest Snapshot creation request
SnapshotState Represents the state that a snapshot can be in