https://community.splunk.com/t5/Monitoring-Splunk/Splunk-Indexers-Physicial-memory-usage-high/m-p/486724#M4035 <P>Hi , I am currently experiencing high memory usage on my indexers when i saw the memory usage , i saw a high amount of memory caches below,<BR /> total used free shared buffers cached<BR /> Mem: 516761 477169 39592 0 1158 457892<BR /> -/+ buffers/cache: 18117 498644<BR /> Swap: 51199 551 50648</P> <P>How safe is it to clear buffers and cache ? If i clear caches is it will create any issue like deleting data make indexers down ?<BR /> I am thinking to clear it using these commands :<BR /> sync; echo 1 &gt; /proc/sys/vm/drop_caches.<BR /> sync; echo 3 &gt; /proc/sys/vm/drop_caches </P> Wed, 30 Sep 2020 02:16:39 GMT ram254481493 2020-09-30T02:16:39Z https://community.splunk.com/t5/Monitoring-Splunk/Splunk-Indexers-Physicial-memory-usage-high/m-p/486724#M4035 <P>Hi , I am currently experiencing high memory usage on my indexers when i saw the memory usage , i saw a high amount of memory caches below,<BR /> total used free shared buffers cached<BR /> Mem: 516761 477169 39592 0 1158 457892<BR /> -/+ buffers/cache: 18117 498644<BR /> Swap: 51199 551 50648</P> <P>How safe is it to clear buffers and cache ? If i clear caches is it will create any issue like deleting data make indexers down ?<BR /> I am thinking to clear it using these commands :<BR /> sync; echo 1 &gt; /proc/sys/vm/drop_caches.<BR /> sync; echo 3 &gt; /proc/sys/vm/drop_caches </P> Wed, 30 Sep 2020 02:16:39 GMT https://community.splunk.com/t5/Monitoring-Splunk/Splunk-Indexers-Physicial-memory-usage-high/m-p/486724#M4035 ram254481493 2020-09-30T02:16:39Z https://community.splunk.com/t5/Monitoring-Splunk/Splunk-Indexers-Physicial-memory-usage-high/m-p/486725#M4036 <P>Your memory usage looks normal for an indexer. You can clear the cache but it's going to quickly fill up again which is a good thing since it helps you avoid unnecessary disk I/O. Splunk will still be able to use the memory when needed. What kind of application problem are you experiencing?</P> Fri, 27 Sep 2019 17:28:13 GMT https://community.splunk.com/t5/Monitoring-Splunk/Splunk-Indexers-Physicial-memory-usage-high/m-p/486725#M4036 jtacy 2019-09-27T17:28:13Z