91 lines
3.9 KiB
Plaintext
91 lines
3.9 KiB
Plaintext
[[java-rest-high-flush]]
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=== Flush Synced API
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[[java-rest-high-flush-synced-request]]
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==== Flush Synced Request
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A `SyncedFlushRequest` can be applied to one or more indices, or even on `_all` the indices:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-request]
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--------------------------------------------------
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<1> Flush synced one index
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<2> Flush synced multiple indices
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<3> Flush synced all the indices
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==== Optional arguments
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-request-indicesOptions]
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--------------------------------------------------
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<1> Setting `IndicesOptions` controls how unavailable indices are resolved and
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how wildcard expressions are expanded
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[[java-rest-high-flush-synced-sync]]
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==== Synchronous Execution
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-execute]
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--------------------------------------------------
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[[java-rest-high-flush-synced-async]]
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==== Asynchronous Execution
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The asynchronous execution of a flush request requires both the `SyncedFlushRequest`
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instance and an `ActionListener` instance to be passed to the asynchronous
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method:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-execute-async]
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--------------------------------------------------
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<1> The `SyncedFlushRequest` to execute and the `ActionListener` to use when
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the execution completes
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The asynchronous method does not block and returns immediately. Once it is
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completed the `ActionListener` is called back using the `onResponse` method
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if the execution successfully completed or using the `onFailure` method if
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it failed.
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A typical listener for `SyncedFlushResponse` looks like:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-execute-listener]
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--------------------------------------------------
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<1> Called when the execution is successfully completed. The response is
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provided as an argument
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<2> Called in case of failure. The raised exception is provided as an argument
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[[java-rest-high-flush-response]]
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==== Flush Synced Response
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The returned `SyncedFlushResponse` allows to retrieve information about the
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executed operation as follows:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-response]
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--------------------------------------------------
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<1> Total number of shards hit by the flush request
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<2> Number of shards where the flush has succeeded
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<3> Number of shards where the flush has failed
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<4> Name of the index whose results we are about to calculate.
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<5> Total number of shards for index mentioned in 4.
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<6> Successful shards for index mentioned in 4.
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<7> Failed shards for index mentioned in 4.
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<8> One of the failed shard ids of the failed index mentioned in 4.
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<9> Reason for failure of copies of the shard mentioned in 8.
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<10> JSON represented by a Map<String, Object>. Contains shard related information like id, state, version etc.
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for the failed shard copies. If the entire shard failed then this returns an empty map.
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By default, if the indices were not found, an `ElasticsearchException` will be thrown:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-notfound]
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--------------------------------------------------
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<1> Do something if the indices to be flushed were not found |