
π Hadoop eco system ꡬμΆμ€μ΄μ λΆ
π λ°μ΄ν° μ μ¬ λ° μ²λ¦¬λ₯Ό μν΄ Hiveλ₯Ό μ¬μ©νμλ λΆ
tez engine κΈ°λ°μ Hive ꡬλ μ, μλ¬ λ°μ νμΈ
Exception in thread "main" java.lang.RuntimeException:java.io.IOException: Previous writer likely failed to write hdfs://mycluster/user/root/.hiveJars/hive-exec-3.1.2-50b0545693ae9392559584116a172ee32922e57ae9ea0eb7dc120290c217c2d5.jar. Failing because I am unlikely to write too.
~
Caused by: java.io.IOException: Previous writer likely failed to write hdfs://mycluster/user/root/.hiveJars/hive-exec-3.1.2-50b0545693ae9392559584116a172ee32922e57ae9ea0eb7dc120290c217c2d5.jar. Failing because I am unlikely to write too.
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Q: Hive ꡬλ μ, μκΈ° μ€λ₯κ° λ°μν΄μπ¦π¦
A: λ¨Όμ hive-site.xmlμμ hive.exec.scratchdirμ κ°μ νμΈνμΈμ.
ν΄λΉ κ°μ μ΅μλ¨(루νΈ) λλ ν°λ¦¬λ₯Ό νμΈν ν,
Hadoop NN(active)μ ν°λ―Έλλ‘ μ΄λν©λλ€π¨
ν΄λΉ ν°λ―Έλμμ
hdfs dfs -chmod -R 777 /[μκΈ°μμ νμΈν λλ ν°λ¦¬λͺ
]
μ μ
λ ₯νμ¬ κΆνμ λ³κ²½ν΄μ€λλ€.
λ€μ hive μλ² κ΅¬λμ νλ©΄ μ μμ μΌλ‘ ꡬλλλ κ²μ νμΈν μ μμ΅λλ€.https://game-of-the-weak.com/sysdata/nema-34-stepper-motor-explained-what-makes-it-so-reliable-and-powerful/
https://putinbay.com/old-site/?p=24
https://www.daveslawngarden.com/sysdata/why-your-nema-34-motor-feels-weak-and-what-microstepping-has-to-do-with-it/
https://sjovevarer.dk/baselog/why-the-l298n-driver-will-ruin-your-nema-17-stepper-motor-projects/
https://www.cape-verde-cabo-verde.com/sysdata/struggling-with-your-nema-8-motor-heres-how-to-fix-it-fast-and-right/