If the src directory or any of its descendant is snapshottable and the dst directory or any of its ancestors is snapshottable, we consider this as nested snapshot, which should be denied. Reviewed-by: Shashikant Banerjee <shashikant@apache.org> (cherry picked from commit de6b8b0c0b1933aab2af3e8adc50a2091d428238) (cherry picked from commit c9fc118991104acf9109aa769fe1a0e84f425a61)
For the latest information about Hadoop, please visit our website at: http://hadoop.apache.org/core/ and our wiki, at: http://wiki.apache.org/hadoop/ This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See <http://www.wassenaar.org/> for more information. The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this Apache Software Foundation distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code. The following provides more details on the included cryptographic software: Hadoop Core uses the SSL libraries from the Jetty project written by mortbay.org.
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