JDK 8u60 is incompatible with the AWS SDK, and causes problem with DistCP.JDK 8u40 and 8u45 are affected by JDK-8077155, which affects HTTP authentication.JDK 8u40, 8u45, and 8u60 are not supported due to JDK issues impacting CDH functionality:.Workaround: Consider using a more recent version of the JDK like 8u282, or builds of the JDK where the issue is fixed. Pay attention to the build version of your JDK because some later builds are fixed as JDK 8u271, JDK 8u281, and JDK 8u291 may cause socket leak issues due to JDK-8245417 and JDK-8256818. JDK 8 is required for Cloudera Manager 6 and CDH 6. Updates above the minimum that are not listed are supported but
#Java download 1 6 update
All cluster hosts must use the same JDK update level.Īll JDK 8 updates, from the minimum required version, are supported in Cloudera Enterprise 6 unless specifically excluded. Running CDH nodes within the same cluster on different JDK releases is not supported. Cloudera excludes or removes support for select Java Unless specifically excluded, Cloudera supports later updates to a major JDK release from the release that support was introduced. Oracle JDK 9 is not supported in any Cloudera Manager or CDH version. You must recompile your applications using JDK 8 before upgrading to CDH 6. For installation and migration instructions, see Upgrading the JDK.Īpplications compiled with JDK 7 are not supported on CDH 6.
OpenJDK 8 is supported in Cloudera Enterprise 6.1.0 and higher, as well as Cloudera Enterprise 5.16.1 and higher.
JDK 8 is also supported in CDH 5.3 and higher. Supported in Cloudera Manager 6 and CDH 6. Manager 6.x must use JDK 8 on all cluster hosts. Although JDK 7 is supported on all versions of CDH 5, a CDH 5.x cluster that is managed by Cloudera Cloudera Manager 6 and CDH 6 do not support JDK 7. In general, for heap sizes above 32 GB, multiply the amount of heap you need by 1.5. If you need 32 GB or more, set your heap size to 48 GB or higher to account for the If you do not need more than 32 GB heap, set your heap size to 31GB or less to avoid this issue.
This means that a heap size slightly less than 32 GB can hold more objects than a heap For larger heap sizes, 8-byte pointers are required. Note: A Java optimization called compressed oops (ordinary object pointers) enables a 64-bit JVM toĪddress heap sizes up to about 32 GB using 4-byte pointers.
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