1489 Commits

Author SHA1 Message Date
zachjsh
fb7c84fb5d
Catalog clustering keys fixes (#16351)
* * add another catalog clustering columns unit test

* * dissallow clusterKeys with descending order

* * make more clear that clustering is re-written into ingest node
whether a catalog table or not

* * when partitionedBy is stored in catalog, user shouldnt need to specify
it in order to specify clustering

* * fix intellij inspection failure
2024-05-03 14:02:56 -04:00
Jan Werner
b16401323b
update dependencies to address CVEs (#16374)
update dependencies to address new batch of CVEs:
- Azure POM from 1.2.19 to 1.2.23 to update transitive dependency nimbus-jose-jwt to address:  CVE-2023-52428
- commons-configuration2 from 2.8.0 to 2.10.1 to address: CVE-2024-29131 CVE-2024-29133
- bcpkix-jdk18on from 1.76 to 1.78.1 to address: CVE-2024-30172 CVE-2024-30171 CVE-2024-29857
2024-05-02 21:35:21 -07:00
Gian Merlino
5d1950d451
MSQ controller: Support in-memory shuffles; towards JVM reuse. (#16168)
* MSQ controller: Support in-memory shuffles; towards JVM reuse.

This patch contains two controller changes that make progress towards a
lower-latency MSQ.

First, support for in-memory shuffles. The main feature of in-memory shuffles,
as far as the controller is concerned, is that they are not fully buffered. That
means that whenever a producer stage uses in-memory output, its consumer must run
concurrently. The controller determines which stages run concurrently, and when
they start and stop.

"Leapfrogging" allows any chain of sort-based stages to use in-memory shuffles
even if we can only run two stages at once. For example, in a linear chain of
stages 0 -> 1 -> 2 where all do sort-based shuffles, we can use in-memory shuffling
for each one while only running two at once. (When stage 1 is done reading input
and about to start writing its output, we can stop 0 and start 2.)

1) New OutputChannelMode enum attached to WorkOrders that tells workers
   whether stage output should be in memory (MEMORY), or use local or durable
   storage.

2) New logic in the ControllerQueryKernel to determine which stages can use
   in-memory shuffling (ControllerUtils#computeStageGroups) and to launch them
   at the appropriate time (ControllerQueryKernel#createNewKernels).

3) New "doneReadingInput" method on Controller (passed down to the stage kernels)
   which allows stages to transition to POST_READING even if they are not
   gathering statistics. This is important because it enables "leapfrogging"
   for HASH_LOCAL_SORT shuffles, and for GLOBAL_SORT shuffles with 1 partition.

4) Moved result-reading from ControllerContext#writeReports to new QueryListener
   interface, which ControllerImpl feeds results to row-by-row while the query
   is still running. Important so we can read query results from the final
   stage using an in-memory channel.

5) New class ControllerQueryKernelConfig holds configs that control kernel
   behavior (such as whether to pipeline, maximum number of concurrent stages,
   etc). Generated by the ControllerContext.

Second, a refactor towards running workers in persistent JVMs that are able to
cache data across queries. This is helpful because I believe we'll want to reuse
JVMs and cached data for latency reasons.

1) Move creation of WorkerManager and TableInputSpecSlicer to the
   ControllerContext, rather than ControllerImpl. This allows managing workers and
   work assignment differently when JVMs are reusable.

2) Lift the Controller Jersey resource out from ControllerChatHandler to a
   reusable resource.

3) Move memory introspection to a MemoryIntrospector interface, and introduce
   ControllerMemoryParameters that uses it. This makes it easier to run MSQ in
   process types other than Indexer and Peon.

Both of these areas will have follow-ups that make similar changes on the
worker side.

* Address static checks.

* Address static checks.

* Fixes.

* Report writer tests.

* Adjustments.

* Fix reports.

* Review updates.

* Adjust name.

* Small changes.
2024-04-30 21:30:27 -07:00
Adarsh Sanjeev
fb63520de9
Add tests for ProcessorManager (#16327)
* Add tests for ProcessorManager
2024-04-30 09:35:26 +05:30
Adithya Chakilam
f8015eb02a
Add config lagAggregate to LagBasedAutoScalerConfig (#16334)
Changes:
- Add new config `lagAggregate` to `LagBasedAutoScalerConfig`
- Add field `aggregateForScaling` to `LagStats`
- Use the new field/config to determine which aggregate to use to compute lag
- Remove method `Supervisor.computeLagForAutoScaler()`
2024-04-29 22:20:41 +05:30
Adarsh Sanjeev
9a2d7c28bc
Prepare master branch for 31.0.0 release (#16333) 2024-04-26 09:22:43 +05:30
Arun Ramani
126a0c219a
Surface lock revocation exceptions in task status (#16325) 2024-04-26 08:39:44 +05:30
AmatyaAvadhanula
31eee7d51e
Check for handoff of upgraded segments (#16162)
Changes:
1) Check for handoff of upgraded realtime segments.
2) Drop sink only when all associated realtime segments have been abandoned.
3) Delete pending segments upon commit to prevent unnecessary upgrades and
partition space exhaustion when a concurrent replace happens. This also prevents
potential data duplication.
4) Register pending segment upgrade only on those tasks to which the segment is associated.
2024-04-25 22:03:38 +05:30
Jakub Matyszewski
5061507541
pacj4: add UserProfile attributes to AuthenticationResult context (#16109)
I'm adding OIDC context to the AuthenticationResult returned by pac4j extension. I wanted to use this context as input in OpenPolicyAgent authorization. Since AuthenticationResult already accepts context as a parameter it felt okay to pass the profile attributes there.
2024-04-25 12:10:12 +05:30
Zoltan Haindrich
9c0bd56f5b
Make QueryComponentSupliers independent from test classes (#16275) 2024-04-25 02:12:07 -04:00
Gian Merlino
8a5cc976a9
ArrayOfDoublesSketchBuildAggregator: Fix NPE in get() for empty sketch. (#16330)
Fixes a bug introduced in #16296, where the sketch might not be
initialized if get() is called without calling aggregate(). Also adds
a test for this case.
2024-04-25 00:59:59 -04:00
Laksh Singla
6bca406d31
Grouping on complex columns aka unifying GroupBy strategies (#16068)
Users can pass complex types as dimensions to the group by queries. For example:

SELECT nested_col1, count(*) FROM foo GROUP BY nested_col1
2024-04-24 23:00:14 +05:30
Rishabh Singh
e30790e013
Introduce Segment Schema Publishing and Polling for Efficient Datasource Schema Building (#15817)
Issue: #14989

The initial step in optimizing segment metadata was to centralize the construction of datasource schema in the Coordinator (#14985). Thereafter, we addressed the problem of publishing schema for realtime segments (#15475). Subsequently, our goal is to eliminate the requirement for regularly executing queries to obtain segment schema information.

This is the final change which involves publishing segment schema for finalized segments from task and periodically polling them in the Coordinator.
2024-04-24 22:22:53 +05:30
Sree Charan Manamala
080476f9ea
WINDOWING - Fix 2 nodes with same digest causing mapping issue (#16301)
Fixes the mapping issue in window fucntions where 2 nodes get the same reference.
2024-04-24 16:45:02 +05:30
Gian Merlino
274ccbfd85
Reset buffer aggregators when resetting Groupers. (#16296)
Buffer aggregators can contain some cached objects within them, such as
Memory references or HLL Unions. Prior to this patch, various Grouper
implementations were not releasing this state when resetting their own
internal state, which could lead to excessive memory use.

This patch renames AggregatorAdapater#close to "reset", and updates
Grouper implementations to call this reset method whenever they reset
their internal state.

The base method on BufferAggregator and VectorAggregator remains named
"close", for compatibility with existing extensions, but the contract
is adjusted to say that the aggregator may be reused after the method
is called. All existing implementations in core already adhere to this
new contract, except for the ArrayOfDoubles build flavors, which are
updated in this patch to adhere.

Additionally, this patch harmonizes buffer sketch helpers to call their
clear method "clear" rather than a mix of "clear" and "close". (Others
were already using "clear".)
2024-04-24 05:39:24 -04:00
Parth Agrawal
f1d24c868f
[CVE Fixes] Update version of Nimbus.jose.jwt (#16320)
* Update version of nimbus.jose.jwt.version

* update licenses.yaml
2024-04-23 15:11:54 +05:30
Vishesh Garg
173a206829
Fix incorrect check of InvalidFieldException to InvalidFieldFault while generating MSQ Error Report (#16273)
InvalidFieldFault is incorrectly checked as InvalidFieldException in mapQueryColumnNameToOutputColumnName. This fixes the bug.
2024-04-22 15:18:49 +05:30
Laksh Singla
b9bbde5c0a
Fix deadlock that can occur while merging group by results (#15420)
This PR prevents such a deadlock from happening by acquiring the merge buffers in a single place and passing it down to the runner that might need it.
2024-04-22 14:10:44 +05:30
Adithya Chakilam
cff5d1e369
Add method Supervisor.computeLagForAutoScaler (#16314)
Tries to address the comments made on #16284 after merged.

Changes:
- Remove method `Supervisor.getLagMetric()`
- Add method `Supervisor.computeLagForAutoScaler()`
- Remove classes `LagMetric` and `LagMetricTest`
2024-04-20 07:57:50 +05:30
Akshat Jain
79e48c6b45
Fix NPE while loading lookups from empty JDBC source (#16307) 2024-04-18 21:52:02 +05:30
zachjsh
3f2dd46ede
Catalog table should not need explicit segment granularity set (#16278)
* * fix

* * fix

* * address review comments

* * fix

* * simplify tests

* * fix complex type nullability issue

* * fix and update test

* * address review comments

* * address test review comments

* * fix checkstyle

* * fix checkstyle

* * fix failing test
2024-04-17 11:46:24 -04:00
zachjsh
2351f038eb
Kafka with topicPattern can ignore old offsets spuriously (#16190)
* * fix

* * simplify

* * simplify tests

* * update matches function definition for Kafka Datasource Metadata

* * add matchesOld

* * override matches and plus for kafka based metadata / sequence numbers

* * implement minus
* add tests

* * fix failing tests

* * remove TODO comments

* * simplfy and add comments

* * remove unused variable in tests

* * remove unneeded function

* * add serde tests

* * more stuff

* * address review comments

* * remove unneeded code.
2024-04-17 10:00:17 -04:00
Adithya Chakilam
34237bc112
Consider max lag for kinesis while autoscaling (#16284)
* Consider max lag for kinesis while autoscaling

* add test for coverage

* test folder
2024-04-17 15:05:05 +05:30
AmatyaAvadhanula
f3d69f30e6
Associate pending segments with the tasks that requested them (#16144)
Changes:
- Add column `task_allocator_id` to `pendingSegments` metadata table.
- Add column `upgraded_from_segment_id` to `pendingSegments` metadata table.
- Add interface `PendingSegmentAllocatingTask` and implement it by all tasks which
can allocate pending segments.
- Use `taskAllocatorId` to identify the task (and its sub-tasks or replicas) to which
a pending segment has been allocated.
- Perform active cleanup of pending segments in `TaskLockbox` once there are no
active tasks for the corresponding task allocator id.
- When committing APPEND segments, also commit all upgraded pending segments
corresponding to that task allocator id.
- When committing REPLACE segments, upgrade all overlapping pending segments in
the same transaction.
2024-04-17 09:06:31 +05:30
zachjsh
a5428e75ff
INSERT/REPLACE complex target column types are validated against source input expressions (#16223)
* * fix

* * fix

* * address review comments

* * fix

* * simplify tests

* * fix complex type nullability issue

* * address review comments

* * address test review comments

* * fix checkstyle
2024-04-16 17:20:35 -04:00
AmatyaAvadhanula
ad6bd62140
Handle task location fetch from overlord during rolling upgrades (#16227)
Bug:
#15724 introduced a bug where a rolling upgrade would cause all task locations
returned by the Overlord on an older version to be unknown.

Fix:
If the new API fails, fall back to single task status API which always returns a valid task location.
2024-04-16 21:01:37 +05:30
YongGang
6964297b53
Remove the unused Controller context reference from Worker (#16285) 2024-04-16 08:34:24 +05:30
Adarsh Sanjeev
3df00aef9d
Add manifest file for MSQ export (#15953)
Currently, export creates the files at the provided destination. The addition of the manifest file will provide a list of files created as part of the manifest. This will allow easier consumption of the data exported from Druid, especially for automated data pipelines
2024-04-15 11:37:31 +05:30
Kashif Faraz
81d7b6ebe1
Fix OverlordClient to read reports as a concrete ReportMap (#16226)
Follow up to #16217 

Changes:
- Update `OverlordClient.getReportAsMap()` to return `TaskReport.ReportMap`
- Move the following classes to `org.apache.druid.indexer.report` in the `druid-processing` module
  - `TaskReport`
  - `KillTaskReport`
  - `IngestionStatsAndErrorsTaskReport`
  - `TaskContextReport`
  - `TaskReportFileWriter`
  - `SingleFileTaskReportFileWriter`
  - `TaskReportSerdeTest`
- Remove `MsqOverlordResourceTestClient` as it had only one method
which is already present in `OverlordResourceTestClient` itself
2024-04-15 08:00:59 +05:30
YongGang
da9feb4430
Introduce TaskContextReport for reporting task context (#16041)
Changes:
- Add `TaskContextEnricher` interface to improve task management and monitoring
- Invoke `enrichContext` in `TaskQueue.add()` whenever a new task is submitted to the Overlord
- Add `TaskContextReport` to write out task context information in reports
2024-04-12 08:57:49 +05:30
Gian Merlino
9f358f5f4a
SQL tests: avoid mixing skip and cannot vectorize. (#16251)
* SQL tests: avoid mixing skip and cannot vectorize.

skipVectorize switches off vectorization tests completely, and
cannotVectorize turns vectorization tests into negative tests. It doesn't
make sense to use them together, so this patch makes it an error to do so,
and cleans up cases where both are mentioned.

This patch also has the effect of changing various tests from skipVectorize
to cannotVectorize, because in the past when both were mentioned,
skipVectorize would take priority.

* Fix bug with StringAnyAggregatorFactory attempting to vectorize when it cannt.

* Fix tests.
2024-04-11 15:06:11 -07:00
Vishesh Garg
3d595cfab1
Add storeCompactionState flag support to msq (#15965)
Compaction in the native engine by default records the state of compaction for each segment in the lastCompactionState segment field. This PR adds support for doing the same in the MSQ engine, targeted for future cases such as REPLACE and compaction done via MSQ.

Note that this PR doesn't implicitly store the compaction state for MSQ replace tasks; it is stored with flag "storeCompactionState": true in the query context.
2024-04-09 16:47:47 +05:30
Vishesh Garg
9a4fb58543
Record column name for exceptions while writing frames in RowBasedFrameWriter (#16130)
Current Runtime Exceptions generated while writing frames only include the exception itself without including the name of the column they were encountered in. This patch introduces the further information in the error and makes it non-retryable.
2024-04-09 15:39:10 +05:30
Adarsh Sanjeev
e2e0cb905c
Add reasoning for choosing shardSpec to the MSQ report (#16175)
This PR logs the segment type and reason chosen. It also adds it to the query report, to be displayed in the UI.

This PR adds a new section to the reports, segmentReport. This contains the segment type created, if the query is an ingestion, and null otherwise.
2024-04-09 11:32:02 +05:30
Gian Merlino
5e5cf9af99
Reduce upload buffer size in GoogleTaskLogs. (#16236)
* Reduce upload buffer size in GoogleTaskLogs.

Use a 1MB upload buffer, rather than the default of 15 MB in the API client. This is
mainly because MMs may upload logs in parallel, and typically have small heaps. The
default-sized 15 MB buffers add up quickly and can cause a MM to run out of memory.

* Make bufferSize a nullable Integer. Add tests.
2024-04-08 12:54:31 -07:00
Parag Jain
f55c9e58a8
add google as external storage for msq export (#16051)
Support for exporting msq results to gcs bucket. This is essentially copying the logic of s3 export for gs, originally done by @adarshsanjeev in this PR - #15689
2024-04-05 12:10:10 +05:30
Soumyava
4bea865697
Restore context flag for window functions (#16229) 2024-04-03 13:57:13 +05:30
zachjsh
9b52c909e0
fix complex types returning UNKNOWN as their SQL type inference (#16216)
* * fix

* * fix

* * address review comments
2024-04-02 14:36:01 -04:00
Kashif Faraz
0de44d91f1
Cleanup serialiazation of TaskReportMap (#16217)
* Build task reports in AbstractBatchIndexTask

* Minor cleanup

* Apply suggestions from code review by @abhishekrb

Co-authored-by: Abhishek Radhakrishnan <abhishek.rb19@gmail.com>

* Cleanup IndexTaskTest

* Fix formatting

* Fix coverage

* Cleanup serialization of TaskReport map

* Replace occurrences of Map<String, TaskReport>

* Return TaskReport.ReportMap for live reports, fix test comparisons

* Address test failures

---------

Co-authored-by: Abhishek Radhakrishnan <abhishek.rb19@gmail.com>
2024-04-01 11:53:24 -07:00
Kashif Faraz
4df4896674
Refactor: Add common method in AbstractBatchIndexTask to create ingestion stats report (#16202)
Changes
-  No functional changes
- Add method `AbstractBatchIndexTask.buildIngestionStatsReport()` used in several batch tasks
- Add utility method `AbstractBatchIndexTask.addBuildSegmentStatsToReport()`
- Use boolean argument to represent a full report instead of the String `full` 
in internal methods. (REST API remains unchanged.)
- Rename `IngestionStatsAndErrorsTaskReportData` to `IngestionStatsAndErrors`
- Clean up some of the methods
2024-03-28 23:07:00 +05:30
Soumyava
524842a3bb
Window function on msq (#15470)
This PR aims to introduce Window functions on MSQ by doing the following:

    Introduce a Window querykit for handling window queries along with its factory and a processor for window queries
    If a window operator is present with a partition by clause, pushes the partition as a shuffle spec of the previous stage
    In presence of empty OVER() clause lets all operators loose on a single rac
    In presence of no empty OVER() clause, breaks down each window into individual stages
    Associated machinery to handle window functions in MSQ
    Introduced a separate hidden engine feature WINDOW_LEAF_OPERATOR which is set only for MSQ engine. In presence of this feature, the planner plans without the leaf operators by creating a window query over an inner scan query. In case of native this is set to false and the planner generates the leafOperators
    Guardrails around materialization
    Comprehensive UTs
2024-03-28 14:58:34 +05:30
Gian Merlino
7649957710
MSQ: Fix issue where AUTO assignment would not respect maxWorkerCount. (#16214)
WorkerAssignmentStrategy.AUTO was missing a check for maxWorkerCount
in the case where the inputs to a stage are not dynamically sliceable.
A common case here is when the inputs to a stage are other stages.
2024-03-28 14:40:31 +05:30
zachjsh
8370db106c
INSERT/REPLACE dimension target column types are validated against source input expressions (#15962)
* * address remaining comments from https://github.com/apache/druid/pull/15836

* *  address remaining comments from https://github.com/apache/druid/pull/15908

* * add test that exposes relational algebra issue

* * simplify test exposing issue

* * fix

* * add tests for sealed / non-sealed

* * update test descriptions

* * fix test failure when -Ddruid.generic.useDefaultValueForNull=true

* * check type assignment based on natice Druid types

* * add tests that cover missing jacoco coverage

* * add replace tests

* * add more tests and comments about column ordering

* * simplify tests

* * review comments

* * remove commented line

* * STRING family types should be validated as non-null
2024-03-25 12:34:07 -04:00
Aru Raghuwanshi
6e19ce5e69
Handle null values in KafkaStringHeaderReader (#16192) 2024-03-23 13:05:55 +05:30
Gian Merlino
2b23d0b5b5
MSQ: Controller checker should check for "closed" only. (#16161)
* MSQ: Controller checker should check for "closed" only.

Currently, the worker's controller checker will exit the worker if
the controller location is "closed" (no longer running) or if its location
is empty (i.e. location unknown).

This patch changes to only exit on "closed". We shouldn't exit on empty
location, because that may happen if the Overlord is slow to acknowledge the
location of a task.

* Fix test.
2024-03-19 19:25:48 -07:00
Gian Merlino
c96b215dd6
SortMerge join support for IS NOT DISTINCT FROM. (#16003)
* SortMerge join support for IS NOT DISTINCT FROM.

The patch adds a "requiredNonNullKeyParts" field to the sortMerge
processor, which has the list of key parts that must be nonnull for
an equijoin condition to match. Conditions with SQL "=" are present in
the list; conditions with SQL "IS NOT DISTINCT FROM" are absent from
the list.

* Fix test.

* Update javadoc.
2024-03-19 12:02:13 -07:00
Zoltan Haindrich
1ad489a2ae
Fix build: newTempFolder (#16170) 2024-03-19 08:53:56 -07:00
Zoltan Haindrich
0a42342cef
Update Calcite*Test to use junit5 (#16106)
* Update Calcite*Test to use junit5

* change the way temp dirs are handled
* add openrewrite workflow to safeguard upgrade
* replace junitparamrunner with standard junit5 parametered tests
* update a few rules to junit5 api
* lots of boring changes

* cleanup QueryLogHook

* cleanup

* fix compile error: ARRAYS_DATASOURCE

* fix test

* remove enclosed

* empty

+TEST:TDigestSketchSqlAggregatorTest,HllSketchSqlAggregatorTest,DoublesSketchSqlAggregatorTest,ThetaSketchSqlAggregatorTest,ArrayOfDoublesSketchSqlAggregatorTest,BloomFilterSqlAggregatorTest,BloomDimFilterSqlTest,CatalogIngestionTest,CatalogQueryTest,FixedBucketsHistogramQuantileSqlAggregatorTest,QuantileSqlAggregatorTest,MSQArraysTest,MSQDataSketchesTest,MSQExportTest,MSQFaultsTest,MSQInsertTest,MSQLoadedSegmentTests,MSQParseExceptionsTest,MSQReplaceTest,MSQSelectTest,InsertLockPreemptedFaultTest,MSQWarningsTest,SqlMSQStatementResourcePostTest,SqlStatementResourceTest,CalciteSelectJoinQueryMSQTest,CalciteSelectQueryMSQTest,CalciteUnionQueryMSQTest,MSQTestBase,VarianceSqlAggregatorTest,SleepSqlTest,SqlRowTransformerTest,DruidAvaticaHandlerTest,DruidStatementTest,BaseCalciteQueryTest,CalciteArraysQueryTest,CalciteCorrelatedQueryTest,CalciteExplainQueryTest,CalciteExportTest,CalciteIngestionDmlTest,CalciteInsertDmlTest,CalciteJoinQueryTest,CalciteLookupFunctionQueryTest,CalciteMultiValueStringQueryTest,CalciteNestedDataQueryTest,CalciteParameterQueryTest,CalciteQueryTest,CalciteReplaceDmlTest,CalciteScanSignatureTest,CalciteSelectQueryTest,CalciteSimpleQueryTest,CalciteSubqueryTest,CalciteSysQueryTest,CalciteTableAppendTest,CalciteTimeBoundaryQueryTest,CalciteUnionQueryTest,CalciteWindowQueryTest,DecoupledPlanningCalciteJoinQueryTest,DecoupledPlanningCalciteQueryTest,DecoupledPlanningCalciteUnionQueryTest,DrillWindowQueryTest,DruidPlannerResourceAnalyzeTest,IngestTableFunctionTest,QueryTestRunner,SqlTestFrameworkConfig,SqlAggregationModuleTest,ExpressionsTest,GreatestExpressionTest,IPv4AddressMatchExpressionTest,IPv4AddressParseExpressionTest,IPv4AddressStringifyExpressionTest,LeastExpressionTest,TimeFormatOperatorConversionTest,CombineAndSimplifyBoundsTest,FiltrationTest,SqlQueryTest,CalcitePlannerModuleTest,CalcitesTest,DruidCalciteSchemaModuleTest,DruidSchemaNoDataInitTest,InformationSchemaTest,NamedDruidSchemaTest,NamedLookupSchemaTest,NamedSystemSchemaTest,RootSchemaProviderTest,SystemSchemaTest,CalciteTestBase,SqlResourceTest

* use @Nested

* add rule to remove enclosed; upgrade surefire

* remove enclosed

* cleanup

* add comment about surefire exclude
2024-03-19 04:05:12 -07:00
Adarsh Sanjeev
a151bcfd12
Fix incorrect header names for certain export queries (#16096)
* Fix incorrect header names for certain queries

* Fix incorrect header names for certain queries

* Maintain upgrade compatibility

* Fix tests

* Change null handling
2024-03-19 15:11:04 +05:30
Gian Merlino
55c47fbcfd
MSQ: Fix NPE in getWorkerStats(). (#16159)
TaskTracker's status is null when TaskTrackers are first set up, and
stay null until the first status call comes back. This patch handles
that case and sets the status code to null in the WorkerStats object
in live reports.
2024-03-19 14:22:49 +05:30