Rebase twitter's commit onto prestodb master #248
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When SORTED_WRITE_TO_TEMP_PATH_ENABLED is true, we would require a temporary path for sorted writes.
Soft memory limits are default memory limits given to each query that can be overridden using session properties up to the hard limit set by the existing configuration properties. Having soft limits makes it easier to migrate a workload to lower memory limits by allowing only the queries that require higher limits to specify them while defaulting other queries to lower limits. Available soft memory limit configuration properties: query.soft-max-memory-per-node query.soft-max-total-memory-per-node query.soft-max-total-memory query.soft-max-memory
Adding a configuration to handle compression codec for handling orc and dwrf storage format. Use hive.orc_compression_codec to override the generic compression codec for orc and dwrf storage format. The reason to add an extra configuration was the unavailability of uniform support of all compression codec across all storage formats. The ZSTD compression codec is only available for orc and dwrf storage format.
We have need for this function in several places, and it is purely geometric.
Adds a parent abstract class to PrestoS3FileSystemMetricsCollector so that other SDK clients can share the metrics collector support. Adds reporting for client retry pause time indicating how long the thread was asleep between request retries in the client itself. Fixes the reporting client timings. Previously, when the client retried a request only the first request timings would be recorded in the stats. Now, all request timings are reported individually.
Previously, an instance of PrestoS3FileSystemStats instance was created in PrestoS3ClientFactory which means it would not report S3 client stats to the instance registered with JMX. This would only have affected PrestoS3Select clients. Now the same metric instance is shared with PrestoS3FileSystem
In SHOW FUNCTIONS results, list the built-in functions first, and then the SQL functions, in alphabetical order of the qualified function names.
Minor variable renames
Page sink commit mechanism is a general connector capability and is not restricted only for partition commit.
It can be used not only to commit lifespans or physical partitions. In fact it can be used to commit any page sink write.
Co-authored-by: Andrii Rosa <[email protected]>
Tasks in spark are often retried and run speculatively, thus the commit protocol required for table writes to avoid data corruption Co-authored-by: Andrii Rosa <[email protected]>
A footer consists of two parts. - offset of each stripe's start location. - footer's total size in bytes.
TestRowBasedSerialization sometimes fails calling createRandomLongDecimalsBlock with less than 10 positions. We should allow blocks with less than 10 positions to be created if there are such needs. This commit removes the check to enforce the positionCount check, and comments were added to suggest the user use a larger positinCount when desired nullRate > 0.
We skip the index files.
…ld failure on java 11
… Parquet schema mismatch checking (twitter-forks#245) * Compare type by (name,type) pair rather than (index,type) pair during Parquet schema mismatch checking * add unit test for parquet schema mismatch checker
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