QueryContext::setParallelMergeInitialYieldRows() - Code Metrics - Inspection of "Scrutinizer php8 (#22)" - level23/druid-client - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5e2cd7...799fe9 )

by Teye

created 2021-04-01 11:45 UTC

QueryContext::setParallelMergeInitialYieldRows() A

↳ Parent: QueryContext

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
eloc	2
c	0
b	0
f	0
dl	0
loc	5
ccs	3
cts	3
cp	1
rs	10
cc	1
nc	1
nop	1
crap	1

<?php
declare(strict_types=1);

namespace Level23\Druid\Context;

/**
 * Class QueryContext
 *
 * The query context is used for various query configuration parameters. The following parameters apply to all queries.
 *
 * @package Level23\Druid\Context
 */
class QueryContext extends Context implements ContextInterface
{
    /**
     * Query timeout in millis, beyond which unfinished queries will be cancelled. 0 timeout means no timeout. To set
     * the default timeout, see Broker configuration
     *
     * @param int $timeout
     *
     * @return $this;
     */
    public function setTimeout(int $timeout)
    {
        $this->properties['timeout'] = $timeout;

        return $this;
    }

    /**
     * Query Priority. Queries with higher priority get precedence for computational resources.
     *
     * @param int $priority
     *
     * @return $this;
     */
    public function setPriority(int $priority)
    {
        $this->properties['priority'] = $priority;

        return $this;
    }

    /**
     * Unique identifier given to this query. If a query ID is set or known, this can be used to cancel the query
     *
     * @param string $queryId
     *
     * @return $this;
     */
    public function setQueryId(string $queryId)
    {
        $this->properties['queryId'] = $queryId;

        return $this;
    }

    /**
     * Flag indicating whether to leverage the query cache for this query. When set to false, it disables reading from
     * the query cache for this query. When set to true, Apache Druid (incubating) uses druid.broker.cache.useCache or
     * druid.historical.cache.useCache to determine whether or not to read from the query cache
     *
     * @param bool $useCache
     *
     * @return $this;
     */
    public function setUseCache(bool $useCache)
    {
        $this->properties['useCache'] = $useCache;

        return $this;
    }

    /**
     * Flag indicating whether to save the results of the query to the query cache. Primarily used for debugging. When
     * set to false, it disables saving the results of this query to the query cache. When set to true, Druid uses
     * druid.broker.cache.populateCache or druid.historical.cache.populateCache to determine whether or not to save the
     * results of this query to the query cache
     *
     * @param bool $populateCache
     *
     * @return $this;
     */
    public function setPopulateCache(bool $populateCache)
    {
        $this->properties['populateCache'] = $populateCache;

        return $this;
    }

    /**
     * Flag indicating whether to leverage the result level cache for this query. When set to false, it disables
     * reading from the query cache for this query. When set to true, Druid uses druid.broker.cache.useResultLevelCache
     * to determine whether or not to read from the result-level query cache
     *
     * @param bool $useResultLevelCache
     *
     * @return $this;
     */
    public function setUseResultLevelCache(bool $useResultLevelCache)
    {
        $this->properties['useResultLevelCache'] = $useResultLevelCache;

        return $this;
    }

    /**
     * Flag indicating whether to save the results of the query to the result level cache. Primarily used for
     * debugging. When set to false, it disables saving the results of this query to the query cache. When set to true,
     * Druid uses druid.broker.cache.populateResultLevelCache to determine whether or not to save the results of this
     * query to the result-level query cache
     *
     * @param bool $populateResultLevelCache
     *
     * @return $this;
     */
    public function setPopulateResultLevelCache(bool $populateResultLevelCache)
    {
        $this->properties['populateResultLevelCache'] = $populateResultLevelCache;

        return $this;
    }

    /**
     * Return "by segment" results. Primarily used for debugging, setting it to true returns results associated with
     * the data segment they came from
     *
     * @param bool $bySegment
     *
     * @return $this;
     */
    public function setBySegment(bool $bySegment)
    {
        $this->properties['bySegment'] = $bySegment;

        return $this;
    }

    /**
     * Flag indicating whether to "finalize" aggregation results. Primarily used for debugging. For instance, the
     * hyperUnique aggregator will return the full HyperLogLog sketch instead of the estimated cardinality when this
     * flag is set to false
     *
     * @param bool $finalize
     *
     * @return $this;
     */
    public function setFinalize(bool $finalize)
    {
        $this->properties['finalize'] = $finalize;

        return $this;
    }

    /**
     * At the Broker process level, long interval queries (of any type) may be broken into shorter interval queries to
     * parallelize merging more than normal. Broken up queries will use a larger share of cluster resources, but, if
     * you use groupBy "v1, it may be able to complete faster as a result. Use ISO 8601 periods. For example, if this
     * property is set to P1M (one month), then a query covering a year would be broken into 12 smaller queries. The
     * broker uses its query processing executor service to initiate processing for query chunks, so make sure
     * "druid.processing.numThreads" is configured appropriately on the broker. groupBy queries do not support
     * chunkPeriod by default, although they do if using the legacy "v1" engine. This context is deprecated since it's
     * only useful for groupBy "v1", and will be removed in the future releases.
     *
     * @param string $chunkPeriod
     *
     * @return $this;
     */
    public function setChunkPeriod(string $chunkPeriod)
    {
        $this->properties['chunkPeriod'] = $chunkPeriod;

        return $this;
    }

    /**
     * Maximum number of bytes gathered from data processes such as historicals and realtime processes to execute a
     * query. This parameter can be used to further reduce maxScatterGatherBytes limit at query time. See Broker
     * configuration for more details.
     *
     * @param int $maxScatterGatherBytes
     *
     * @return $this;
     */
    public function setMaxScatterGatherBytes(int $maxScatterGatherBytes)
    {
        $this->properties['maxScatterGatherBytes'] = $maxScatterGatherBytes;

        return $this;
    }

    /**
     * Maximum number of bytes queued per query before exerting back pressure on the channel to the data server. Similar
     * to maxScatterGatherBytes, except unlike that configuration, this one will trigger back pressure rather than query
     * failure. Zero means disabled.
     *
     * @param int $maxQueuedBytes
     *
     * @return $this;
     */
    public function setMaxQueuedBytes(int $maxQueuedBytes)
    {
        $this->properties['maxQueuedBytes'] = $maxQueuedBytes;

        return $this;
    }

    /**
     * If true, DateTime is serialized as long in the result returned by Broker and the data transportation between
     * Broker and compute process
     *
     * @param bool $serializeDateTimeAsLong
     *
     * @return $this;
     */
    public function setSerializeDateTimeAsLong(bool $serializeDateTimeAsLong)
    {
        $this->properties['serializeDateTimeAsLong'] = $serializeDateTimeAsLong;

        return $this;
    }

    /**
     * If true, DateTime is serialized as long in the data transportation between Broker and compute process
     *
     * @param bool $serializeDateTimeAsLongInner
     *
     * @return $this;
     */
    public function setSerializeDateTimeAsLongInner(bool $serializeDateTimeAsLongInner)
    {
        $this->properties['serializeDateTimeAsLongInner'] = $serializeDateTimeAsLongInner;

        return $this;
    }

    /**
     * Enable parallel result merging on the Broker.
     * Note that druid.processing.merge.useParallelMergePool must be enabled for this setting to be
     * set to true. See Broker configuration for more details.
     *
     * @param bool $enableParallelMerge
     *
     * @return $this
     */
    public function setEnableParallelMerge(bool $enableParallelMerge)
    {
        $this->properties['enableParallelMerge'] = $enableParallelMerge;

        return $this;
    }

    /**
     * Maximum number of parallel threads to use for parallel result merging on the Broker.
     * See Broker configuration for more details.
     *
     * @param int $parallelMergeParallelism
     *
     * @return $this
     */
    public function setParallelMergeParallelism(int $parallelMergeParallelism)
    {
        $this->properties['parallelMergeParallelism'] = $parallelMergeParallelism;

        return $this;
    }

    /**
     * Number of rows to yield per ForkJoinPool merge task for parallel result merging on the Broker,
     * before forking off a new task to continue merging sequences.
     * See Broker configuration for more details.
     *
     * @param int $parallelMergeInitialYieldRows
     *
     * @return $this
     */
    public function setParallelMergeInitialYieldRows(int $parallelMergeInitialYieldRows)
    {
        $this->properties['parallelMergeInitialYieldRows'] = $parallelMergeInitialYieldRows;

        return $this;
    }

    /**
     * Size of result batches to operate on in ForkJoinPool merge tasks for parallel result
     * merging on the Broker. See Broker configuration for more details.
     *
     * @param int $parallelMergeSmallBatchRows
     *
     * @return $this
     */
    public function setParallelMergeSmallBatchRows(int $parallelMergeSmallBatchRows)
    {
        $this->properties['parallelMergeSmallBatchRows'] = $parallelMergeSmallBatchRows;

        return $this;
    }

    /**
     * If true, Druid will attempt to convert the query filter to Conjunctive Normal Form (CNF).
     * During query processing, columns can be pre-filtered by intersecting the bitmap indexes of
     * all values that match the eligible filters, often greatly reducing the raw number of rows
     * which need to be scanned. But this effect only happens for the top level filter,
     * or individual clauses of a top level 'and' filter. As such, filters in CNF potentially have
     * a higher chance to utilize a large amount of bitmap indexes on string columns during
     * pre-filtering. However, this setting should be used with great caution, as it can sometimes
     * have a negative effect on performance, and in some cases, the act of computing CNF of a
     * filter can be expensive. We recommend hand tuning your filters to produce an optimal form
     * if possible, or at least verifying through experimentation that using this parameter actually
     * improves your query performance with no ill-effects.
     *
     * @param bool $useFilterCNF
     *
     * @return $this
     */
    public function setUseFilterCNF(bool $useFilterCNF)
    {
        $this->properties['useFilterCNF'] = $useFilterCNF;

        return $this;
    }

    /**
     * Enable secondary partition pruning on the Broker. The Broker will always prune
     * unnecessary segments from the input scan based on a filter on time intervals,
     * but if the data is further partitioned with hash or range partitioning,
     * this option will enable additional pruning based on a filter on secondary
     * partition dimensions.
     *
     * @param bool $secondaryPartitionPruning
     *
     * @return $this
     */
    public function setSecondaryPartitionPruning(bool $secondaryPartitionPruning)
    {
        $this->properties['secondaryPartitionPruning'] = $secondaryPartitionPruning;

        return $this;
    }
}

1		<?php
2		declare(strict_types=1);
3
4		namespace Level23\Druid\Context;
5
6		/**
7		* Class QueryContext
8		*
9		* The query context is used for various query configuration parameters. The following parameters apply to all queries.
10		*
11		* @package Level23\Druid\Context
12		*/
13		class QueryContext extends Context implements ContextInterface
14		{
15		/**
16		* Query timeout in millis, beyond which unfinished queries will be cancelled. 0 timeout means no timeout. To set
17		* the default timeout, see Broker configuration
18		*
19		* @param int $timeout
20		*
21		* @return $this;
22		*/
23	8	public function setTimeout(int $timeout)
24		{
25	8	$this->properties['timeout'] = $timeout;
26
27	8	return $this;
28		}
29
30		/**
31		* Query Priority. Queries with higher priority get precedence for computational resources.
32		*
33		* @param int $priority
34		*
35		* @return $this;
36		*/
37	11	public function setPriority(int $priority)
38		{
39	11	$this->properties['priority'] = $priority;
40
41	11	return $this;
42		}
43
44		/**
45		* Unique identifier given to this query. If a query ID is set or known, this can be used to cancel the query
46		*
47		* @param string $queryId
48		*
49		* @return $this;
50		*/
51	5	public function setQueryId(string $queryId)
52		{
53	5	$this->properties['queryId'] = $queryId;
54
55	5	return $this;
56		}
57
58		/**
59		* Flag indicating whether to leverage the query cache for this query. When set to false, it disables reading from
60		* the query cache for this query. When set to true, Apache Druid (incubating) uses druid.broker.cache.useCache or
61		* druid.historical.cache.useCache to determine whether or not to read from the query cache
62		*
63		* @param bool $useCache
64		*
65		* @return $this;
66		*/
67	5	public function setUseCache(bool $useCache)
68		{
69	5	$this->properties['useCache'] = $useCache;
70
71	5	return $this;
72		}
73
74		/**
75		* Flag indicating whether to save the results of the query to the query cache. Primarily used for debugging. When
76		* set to false, it disables saving the results of this query to the query cache. When set to true, Druid uses
77		* druid.broker.cache.populateCache or druid.historical.cache.populateCache to determine whether or not to save the
78		* results of this query to the query cache
79		*
80		* @param bool $populateCache
81		*
82		* @return $this;
83		*/
84	5	public function setPopulateCache(bool $populateCache)
85		{
86	5	$this->properties['populateCache'] = $populateCache;
87
88	5	return $this;
89		}
90
91		/**
92		* Flag indicating whether to leverage the result level cache for this query. When set to false, it disables
93		* reading from the query cache for this query. When set to true, Druid uses druid.broker.cache.useResultLevelCache
94		* to determine whether or not to read from the result-level query cache
95		*
96		* @param bool $useResultLevelCache
97		*
98		* @return $this;
99		*/
100	5	public function setUseResultLevelCache(bool $useResultLevelCache)
101		{
102	5	$this->properties['useResultLevelCache'] = $useResultLevelCache;
103
104	5	return $this;
105		}
106
107		/**
108		* Flag indicating whether to save the results of the query to the result level cache. Primarily used for
109		* debugging. When set to false, it disables saving the results of this query to the query cache. When set to true,
110		* Druid uses druid.broker.cache.populateResultLevelCache to determine whether or not to save the results of this
111		* query to the result-level query cache
112		*
113		* @param bool $populateResultLevelCache
114		*
115		* @return $this;
116		*/
117	5	public function setPopulateResultLevelCache(bool $populateResultLevelCache)
118		{
119	5	$this->properties['populateResultLevelCache'] = $populateResultLevelCache;
120
121	5	return $this;
122		}
123
124		/**
125		* Return "by segment" results. Primarily used for debugging, setting it to true returns results associated with
126		* the data segment they came from
127		*
128		* @param bool $bySegment
129		*
130		* @return $this;
131		*/
132	5	public function setBySegment(bool $bySegment)
133		{
134	5	$this->properties['bySegment'] = $bySegment;
135
136	5	return $this;
137		}
138
139		/**
140		* Flag indicating whether to "finalize" aggregation results. Primarily used for debugging. For instance, the
141		* hyperUnique aggregator will return the full HyperLogLog sketch instead of the estimated cardinality when this
142		* flag is set to false
143		*
144		* @param bool $finalize
145		*
146		* @return $this;
147		*/
148	9	public function setFinalize(bool $finalize)
149		{
150	9	$this->properties['finalize'] = $finalize;
151
152	9	return $this;
153		}
154
155		/**
156		* At the Broker process level, long interval queries (of any type) may be broken into shorter interval queries to
157		* parallelize merging more than normal. Broken up queries will use a larger share of cluster resources, but, if
158		* you use groupBy "v1, it may be able to complete faster as a result. Use ISO 8601 periods. For example, if this
159		* property is set to P1M (one month), then a query covering a year would be broken into 12 smaller queries. The
160		* broker uses its query processing executor service to initiate processing for query chunks, so make sure
161		* "druid.processing.numThreads" is configured appropriately on the broker. groupBy queries do not support
162		* chunkPeriod by default, although they do if using the legacy "v1" engine. This context is deprecated since it's
163		* only useful for groupBy "v1", and will be removed in the future releases.
164		*
165		* @param string $chunkPeriod
166		*
167		* @return $this;
168		*/
169	5	public function setChunkPeriod(string $chunkPeriod)
170		{
171	5	$this->properties['chunkPeriod'] = $chunkPeriod;
172
173	5	return $this;
174		}
175
176		/**
177		* Maximum number of bytes gathered from data processes such as historicals and realtime processes to execute a
178		* query. This parameter can be used to further reduce maxScatterGatherBytes limit at query time. See Broker
179		* configuration for more details.
180		*
181		* @param int $maxScatterGatherBytes
182		*
183		* @return $this;
184		*/
185	5	public function setMaxScatterGatherBytes(int $maxScatterGatherBytes)
186		{
187	5	$this->properties['maxScatterGatherBytes'] = $maxScatterGatherBytes;
188
189	5	return $this;
190		}
191
192		/**
193		* Maximum number of bytes queued per query before exerting back pressure on the channel to the data server. Similar
194		* to maxScatterGatherBytes, except unlike that configuration, this one will trigger back pressure rather than query
195		* failure. Zero means disabled.
196		*
197		* @param int $maxQueuedBytes
198		*
199		* @return $this;
200		*/
201	5	public function setMaxQueuedBytes(int $maxQueuedBytes)
202		{
203	5	$this->properties['maxQueuedBytes'] = $maxQueuedBytes;
204
205	5	return $this;
206		}
207
208		/**
209		* If true, DateTime is serialized as long in the result returned by Broker and the data transportation between
210		* Broker and compute process
211		*
212		* @param bool $serializeDateTimeAsLong
213		*
214		* @return $this;
215		*/
216	5	public function setSerializeDateTimeAsLong(bool $serializeDateTimeAsLong)
217		{
218	5	$this->properties['serializeDateTimeAsLong'] = $serializeDateTimeAsLong;
219
220	5	return $this;
221		}
222
223		/**
224		* If true, DateTime is serialized as long in the data transportation between Broker and compute process
225		*
226		* @param bool $serializeDateTimeAsLongInner
227		*
228		* @return $this;
229		*/
230	5	public function setSerializeDateTimeAsLongInner(bool $serializeDateTimeAsLongInner)
231		{
232	5	$this->properties['serializeDateTimeAsLongInner'] = $serializeDateTimeAsLongInner;
233
234	5	return $this;
235		}
236
237		/**
238		* Enable parallel result merging on the Broker.
239		* Note that druid.processing.merge.useParallelMergePool must be enabled for this setting to be
240		* set to true. See Broker configuration for more details.
241		*
242		* @param bool $enableParallelMerge
243		*
244		* @return $this
245		*/
246	5	public function setEnableParallelMerge(bool $enableParallelMerge)
247		{
248	5	$this->properties['enableParallelMerge'] = $enableParallelMerge;
249
250	5	return $this;
251		}
252
253		/**
254		* Maximum number of parallel threads to use for parallel result merging on the Broker.
255		* See Broker configuration for more details.
256		*
257		* @param int $parallelMergeParallelism
258		*
259		* @return $this
260		*/
261	5	public function setParallelMergeParallelism(int $parallelMergeParallelism)
262		{
263	5	$this->properties['parallelMergeParallelism'] = $parallelMergeParallelism;
264
265	5	return $this;
266		}
267
268		/**
269		* Number of rows to yield per ForkJoinPool merge task for parallel result merging on the Broker,
270		* before forking off a new task to continue merging sequences.
271		* See Broker configuration for more details.
272		*
273		* @param int $parallelMergeInitialYieldRows
274		*
275		* @return $this
276		*/
277	5	public function setParallelMergeInitialYieldRows(int $parallelMergeInitialYieldRows)
278		{
279	5	$this->properties['parallelMergeInitialYieldRows'] = $parallelMergeInitialYieldRows;
280
281	5	return $this;
282		}
283
284		/**
285		* Size of result batches to operate on in ForkJoinPool merge tasks for parallel result
286		* merging on the Broker. See Broker configuration for more details.
287		*
288		* @param int $parallelMergeSmallBatchRows
289		*
290		* @return $this
291		*/
292	5	public function setParallelMergeSmallBatchRows(int $parallelMergeSmallBatchRows)
293		{
294	5	$this->properties['parallelMergeSmallBatchRows'] = $parallelMergeSmallBatchRows;
295
296	5	return $this;
297		}
298
299		/**
300		* If true, Druid will attempt to convert the query filter to Conjunctive Normal Form (CNF).
301		* During query processing, columns can be pre-filtered by intersecting the bitmap indexes of
302		* all values that match the eligible filters, often greatly reducing the raw number of rows
303		* which need to be scanned. But this effect only happens for the top level filter,
304		* or individual clauses of a top level 'and' filter. As such, filters in CNF potentially have
305		* a higher chance to utilize a large amount of bitmap indexes on string columns during
306		* pre-filtering. However, this setting should be used with great caution, as it can sometimes
307		* have a negative effect on performance, and in some cases, the act of computing CNF of a
308		* filter can be expensive. We recommend hand tuning your filters to produce an optimal form
309		* if possible, or at least verifying through experimentation that using this parameter actually
310		* improves your query performance with no ill-effects.
311		*
312		* @param bool $useFilterCNF
313		*
314		* @return $this
315		*/
316	5	public function setUseFilterCNF(bool $useFilterCNF)
317		{
318	5	$this->properties['useFilterCNF'] = $useFilterCNF;
319
320	5	return $this;
321		}
322
323		/**
324		* Enable secondary partition pruning on the Broker. The Broker will always prune
325		* unnecessary segments from the input scan based on a filter on time intervals,
326		* but if the data is further partitioned with hash or range partitioning,
327		* this option will enable additional pruning based on a filter on secondary
328		* partition dimensions.
329		*
330		* @param bool $secondaryPartitionPruning
331		*
332		* @return $this
333		*/
334	5	public function setSecondaryPartitionPruning(bool $secondaryPartitionPruning)
335		{
336	5	$this->properties['secondaryPartitionPruning'] = $secondaryPartitionPruning;
337
338	5	return $this;
339		}
340		}

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QueryContext::setParallelMergeInitialYieldRows() A

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