Time in milliseconds that HiveServer2 will hold out, prior to responding to asynchronous calls that use prolonged polling.
Most quantity of open transactions. If present-day open transactions achieve this Restrict, foreseeable future open up transaction requests will likely be turned down, right until the variety goes underneath the limit.
When configuring the max relationship pool size, it is recommended to take into consideration the number of metastore occasions and the quantity of HiveServer2 circumstances
When genuine, this turns on dynamic partition pruning for your Spark engine, making sure that joins on partition keys will likely be processed by writing to A short lived HDFS file, and browse afterwards for taking away pointless partitions.
List of the underlying PAM expert services that should be applied when hive.server2.authentication variety is PAM. A file Using the exact same title will have to exist in /etc/pam.d.
Results in essential schema on the startup if one particular doesn't exist. Set this to Untrue, right after building it once.
Besides the configuration Attributes outlined On this part, some Qualities in other sections also are associated with Spark:
Some choose queries might be transformed to one FETCH endeavor, minimizing latency. At this time the question really should be one sourced not obtaining any subquery and should not have any aggregations or distincts (which incur RS – ReduceSinkOperator, necessitating a MapReduce process), lateral views and joins.
The maximum data size with the dimension table that generates partition pruning facts. If reaches this Restrict, the optimization will probably be turned off.
The Hive/Tez optimizer estimates the info sizing flowing by Just about every with the operators. The Be a part of operator takes advantage of column statistics to estimate the amount of rows flowing outside of it and consequently the info dimension.
When hive.enhance.limittranspose is correct, this variable specifies the minimum proportion (fractional) reduction on the measurement in the outer input of your be site here part of or input of the union the optimizer click this should get in order to implement the rule.
When false, won't create a lock file and thus the cleardanglingscratchdir Software can't get rid of any dangling scratch directories.
If a position fails, no matter if to deliver a website link while in the CLI to your task with the most failures, together with debugging hints if applicable.
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