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Add API for clearing file cache on search nodes
Signed-off-by: Kunal Kotwani <[email protected]>
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18 changes: 18 additions & 0 deletions
18
rest-api-spec/src/main/resources/rest-api-spec/api/nodes.clear_filecache.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| { | ||
| "nodes.clear_filecache":{ | ||
| "documentation":{ | ||
| "description":"Clears all file caches for one or more search capable nodes." | ||
| }, | ||
| "stability":"experimental", | ||
| "url":{ | ||
| "paths":[ | ||
| { | ||
| "path":"/_filecache/clear", | ||
| "methods":[ | ||
| "POST" | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } |
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68 changes: 68 additions & 0 deletions
68
.../org/opensearch/action/admin/cluster/node/filecache/clear/ClearNodeFileCacheResponse.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
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| package org.opensearch.action.admin.cluster.node.filecache.clear; | ||
|
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| import org.opensearch.action.support.nodes.BaseNodeResponse; | ||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.cluster.node.DiscoveryNodeRole; | ||
| import org.opensearch.common.io.stream.StreamInput; | ||
| import org.opensearch.common.io.stream.StreamOutput; | ||
| import org.opensearch.core.xcontent.ToXContentFragment; | ||
| import org.opensearch.core.xcontent.XContentBuilder; | ||
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| import java.io.IOException; | ||
|
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| public class ClearNodeFileCacheResponse extends BaseNodeResponse implements ToXContentFragment { | ||
|
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| boolean cleared; | ||
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| long count; | ||
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| protected ClearNodeFileCacheResponse(StreamInput in) throws IOException { | ||
| super(in); | ||
| cleared = in.readBoolean(); | ||
| count = in.readLong(); | ||
| } | ||
|
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| public ClearNodeFileCacheResponse(DiscoveryNode discoveryNode, boolean cleared, long count) { | ||
| super(discoveryNode); | ||
| this.cleared = cleared; | ||
| this.count = count; | ||
| } | ||
|
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| public boolean isCleared() { | ||
| return cleared; | ||
| } | ||
|
|
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| public long getCount() { | ||
| return count; | ||
| } | ||
|
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| out.writeBoolean(cleared); | ||
| out.writeLong(count); | ||
| } | ||
|
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| builder.field("name", getNode().getName()); | ||
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| builder.startArray("roles"); | ||
| for (DiscoveryNodeRole role : getNode().getRoles()) { | ||
| builder.value(role.roleName()); | ||
| } | ||
| builder.endArray(); | ||
|
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| builder.field("cleared", cleared); | ||
| builder.field("item_count", count); | ||
| return builder; | ||
| } | ||
| } |
26 changes: 26 additions & 0 deletions
26
...a/org/opensearch/action/admin/cluster/node/filecache/clear/ClearNodesFileCacheAction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
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| package org.opensearch.action.admin.cluster.node.filecache.clear; | ||
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| import org.opensearch.action.ActionType; | ||
|
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| /** | ||
| * Transport action for clearing filecache on nodes | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class ClearNodesFileCacheAction extends ActionType<ClearNodesFileCacheResponse> { | ||
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| public static final ClearNodesFileCacheAction INSTANCE = new ClearNodesFileCacheAction(); | ||
| public static final String NAME = "cluster:admin/nodes/filecache/clear"; | ||
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| private ClearNodesFileCacheAction() { | ||
| super(NAME, ClearNodesFileCacheResponse::new); | ||
| } | ||
| } |
36 changes: 36 additions & 0 deletions
36
.../org/opensearch/action/admin/cluster/node/filecache/clear/ClearNodesFileCacheRequest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
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| package org.opensearch.action.admin.cluster.node.filecache.clear; | ||
|
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| import org.opensearch.action.support.nodes.BaseNodesRequest; | ||
| import org.opensearch.common.io.stream.StreamInput; | ||
| import org.opensearch.common.io.stream.StreamOutput; | ||
|
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| import java.io.IOException; | ||
|
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| /** | ||
| * Request object for clearing filecache on nodes | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class ClearNodesFileCacheRequest extends BaseNodesRequest<ClearNodesFileCacheRequest> { | ||
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| public ClearNodesFileCacheRequest() { | ||
| super((String[]) null); | ||
| } | ||
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| public ClearNodesFileCacheRequest(StreamInput in) throws IOException { | ||
| super(in); | ||
| } | ||
|
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| } | ||
| } |
63 changes: 63 additions & 0 deletions
63
...org/opensearch/action/admin/cluster/node/filecache/clear/ClearNodesFileCacheResponse.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
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| package org.opensearch.action.admin.cluster.node.filecache.clear; | ||
|
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| import org.opensearch.action.FailedNodeException; | ||
| import org.opensearch.action.support.nodes.BaseNodesResponse; | ||
| import org.opensearch.cluster.ClusterName; | ||
| import org.opensearch.common.io.stream.StreamInput; | ||
| import org.opensearch.common.io.stream.StreamOutput; | ||
| import org.opensearch.core.xcontent.ToXContentFragment; | ||
| import org.opensearch.core.xcontent.XContentBuilder; | ||
|
|
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| import java.io.IOException; | ||
| import java.util.List; | ||
|
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| /** | ||
| * The response of a clear filecache action. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class ClearNodesFileCacheResponse extends BaseNodesResponse<ClearNodeFileCacheResponse> implements ToXContentFragment { | ||
|
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| ClearNodesFileCacheResponse(StreamInput in) throws IOException { | ||
| super(in); | ||
| } | ||
|
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| ClearNodesFileCacheResponse( | ||
| ClusterName clusterName, | ||
| List<ClearNodeFileCacheResponse> clearNodeFileCachResponses, | ||
| List<FailedNodeException> failures | ||
| ) { | ||
| super(clusterName, clearNodeFileCachResponses, failures); | ||
| } | ||
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| @Override | ||
| protected List<ClearNodeFileCacheResponse> readNodesFrom(StreamInput in) throws IOException { | ||
| return in.readList(ClearNodeFileCacheResponse::new); | ||
| } | ||
|
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| @Override | ||
| protected void writeNodesTo(StreamOutput out, List<ClearNodeFileCacheResponse> clearNodeFileCacheResponse) throws IOException { | ||
| out.writeList(clearNodeFileCacheResponse); | ||
| } | ||
|
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| builder.startObject("nodes"); | ||
| for (ClearNodeFileCacheResponse clearNodeFileCacheResponse : getNodes()) { | ||
| builder.startObject(clearNodeFileCacheResponse.getNode().getId()); | ||
| clearNodeFileCacheResponse.toXContent(builder, params); | ||
| builder.endObject(); | ||
| } | ||
| builder.endObject(); | ||
|
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| return builder; | ||
| } | ||
| } |
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