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Xiao Chen commented on HADOOP-13684: ------------------------------------ Thanks [~ste...@apache.org]. [~jojochuang] could you provide more details? I recall Wei-Chiu verified this internally with an escalation, where a confusing error message was seen. {quote}. Wei-Chiu Chuang added a comment - Aug/29/17 08:32 AM HADOOP-13684 did not fix a bug. It simply corrects an incorrect log message more precise. {quote} Looking at HADOOP-14981 and this one, one possible fix could be moving the {{isNativeCodeLoaded}} check before {{buildSupportsSnappy}}. > Snappy may complain Hadoop is built without snappy if libhadoop is not found. > ----------------------------------------------------------------------------- > > Key: HADOOP-13684 > URL: https://issues.apache.org/jira/browse/HADOOP-13684 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Wei-Chiu Chuang > Assignee: Wei-Chiu Chuang > Priority: Minor > Labels: supportability > Fix For: 2.8.0, 3.0.0-alpha2 > > Attachments: HADOOP-13684.001.patch, HADOOP-13684.002.patch > > > If for some reason libhadoop can not be found/loaded, Snappy complains Hadoop > is not built with Snappy but it actually is. > {code:title=SnappyCodec.java} > public static void checkNativeCodeLoaded() { > if (!NativeCodeLoader.isNativeCodeLoaded() || > !NativeCodeLoader.buildSupportsSnappy()) { > throw new RuntimeException("native snappy library not available: " + > "this version of libhadoop was built without " + > "snappy support."); > } > {code} > This case may happen with MAPREDUCE-6577. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org