[opt](udf-cache) cache more udf classes#40404
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morningman merged 5 commits intoapache:masterfrom Sep 25, 2024
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run buildall |
TPC-H: Total hot run time: 38243 ms |
TPC-DS: Total hot run time: 188394 ms |
ClickBench: Total hot run time: 30.88 s |
zhangstar333
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Sep 6, 2024
| loader = ClassLoader.getSystemClassLoader(); | ||
| } else { | ||
| public UdfClassCache getClassCache(String className, String jarPath, String signature, long expirationTime, | ||
| Type funcRetType, Type... parameterTypes) |
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I check the failed two test case, not give jarPath in create function.
so pass jarPath = null to BE,
and maybe should give the path to custom_lib?
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In this PR #34980, we cache the class load of java udf. But when calling init() method, it is still very time consuming when calling `Class.forName()`. This PR add a new class `UdfClassCache` to cache more things so that the `init()` method will not cost too much time.
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### What problem does this PR solve? Problem Summary: in some user case, - the udf-jars package have some resource file, it's maybe about hundreds MBs, so if every instances load the jar, it's easy to cause the BE JVM OOM. - or in some udf-jars have some init operator cause many times, so wants all instance could only init it's once. follow up #40404 support class cache for java-udaf
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### What problem does this PR solve? Problem Summary: in some user case, - the udf-jars package have some resource file, it's maybe about hundreds MBs, so if every instances load the jar, it's easy to cause the BE JVM OOM. - or in some udf-jars have some init operator cause many times, so wants all instance could only init it's once. follow up apache#40404 support class cache for java-udaf
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### What problem does this PR solve? Problem Summary: in some user case, - the udf-jars package have some resource file, it's maybe about hundreds MBs, so if every instances load the jar, it's easy to cause the BE JVM OOM. - or in some udf-jars have some init operator cause many times, so wants all instance could only init it's once. follow up apache#40404 support class cache for java-udaf
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In this PR #34980, we cache the class load of java udf.
But when calling init() method, it is still very time consuming
when calling
Class.forName().This PR add a new class
UdfClassCacheto cache more thingsso that the
init()method will not cost too much time.