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https://issues.apache.org/jira/browse/CASSANDRA-15767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17094652#comment-17094652
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David Capwell edited comment on CASSANDRA-15767 at 4/28/20, 4:15 PM:
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Replicated in Docker using the CentOS 8 image

{code}
[root@b2cb6d0e780b /]# find . -name '*jemalloc*.so*'
./usr/lib64/libjemalloc.so.2
[root@b2cb6d0e780b /]# rpm -q jemalloc
jemalloc-5.2.1-2.el8.x86_64
{code}

Here is the results in CentOS 7

{code}
[root@14861a12a8e4 /]# find . -name '*jemalloc*.so*'
./usr/lib64/libjemalloc.so.1
[root@14861a12a8e4 /]# rpm -q jemalloc
jemalloc-3.6.0-1.el7.x86_64
{code}


was (Author: dcapwell):
Replicated in Docker using the CentOS 8 image

{code}
[root@b2cb6d0e780b /]# find . -name '*jemalloc*.so*'
./usr/lib64/libjemalloc.so.2
[root@b2cb6d0e780b /]# rpm -q jemalloc
jemalloc-5.2.1-2.el8.x86_64
{code}

> /usr/bin/cassandra looking for wrong libjemalloc.so file
> --------------------------------------------------------
>
>                 Key: CASSANDRA-15767
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15767
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/Scripts
>            Reporter: Brian Bellrose
>            Priority: Normal
>
> In /usr/sbin/cassandra
> Linux)
>  if [ -z $CASSANDRA_LIBJEMALLOC ] ; then
>  which ldconfig > /dev/null 2>&1
>  if [ $? = 0 ] ; then
>  # e.g. for CentOS
>  dirs="/lib64 /lib /usr/lib64 /usr/lib `ldconfig -v 2>/dev/null | grep -v 
> '^\s' | sed 's/^\([^:]*\):.*$/\1/'`"
>  else
>  # e.g. for Debian, OpenSUSE
>  dirs="/lib64 /lib /usr/lib64 /usr/lib `cat /etc/ld.so.conf 
> /etc/ld.so.conf.d/*.conf | grep '^/'`"
>  fi
>  dirs=`echo $dirs | tr " " ":"`
>  CASSANDRA_LIBJEMALLOC=$(find_library '.*/libjemalloc\.so\(\.1\)*' $dirs)
>  
> However...
> # find /usr/lib64 -name "*jemalloc*"
> /usr/lib64/libjemalloc.so.2
>  
>  



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