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From j...@apache.org
Subject git commit: Integrate Sigar library and add basic OS performance checks on startup
Date Thu, 09 Oct 2014 16:45:58 GMT
Repository: cassandra
Updated Branches:
  refs/heads/trunk 7892b8355 -> 861c4cf2d


Integrate Sigar library and add basic OS performance checks on startup

Patch by Amit Kumar and Josh McKenzie; reviewed by tjake for (CASSANDRA-7838)


Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/861c4cf2
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/861c4cf2
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/861c4cf2

Branch: refs/heads/trunk
Commit: 861c4cf2de9075c721945fb7ef84a23030a4f35a
Parents: 7892b83
Author: Joshua McKenzie <josh.mckenzie@datastax.com>
Authored: Wed Oct 8 17:08:11 2014 -0500
Committer: Jake Luciani <jake@apache.org>
Committed: Thu Oct 9 12:32:57 2014 -0400

----------------------------------------------------------------------
 CHANGES.txt                                     |   1 +
 NOTICE.txt                                      |   3 +
 bin/cassandra.bat                               |   5 +-
 bin/cassandra.in.bat                            |   3 +
 bin/cassandra.in.sh                             |   3 +
 build.xml                                       |   3 +
 conf/cassandra-env.ps1                          |   3 +
 conf/cassandra-env.sh                           |   5 +
 debian/cassandra.install                        |   1 +
 lib/licenses/sigar-1.6.4.txt                    | 201 +++++++++++++++++++
 lib/sigar-1.6.4.jar                             | Bin 0 -> 428580 bytes
 lib/sigar-bin/libsigar-amd64-freebsd-6.so       | Bin 0 -> 210641 bytes
 lib/sigar-bin/libsigar-amd64-linux.so           | Bin 0 -> 246605 bytes
 lib/sigar-bin/libsigar-amd64-solaris.so         | Bin 0 -> 251360 bytes
 lib/sigar-bin/libsigar-ia64-hpux-11.sl          | Bin 0 -> 577452 bytes
 lib/sigar-bin/libsigar-ia64-linux.so            | Bin 0 -> 494929 bytes
 lib/sigar-bin/libsigar-pa-hpux-11.sl            | Bin 0 -> 516096 bytes
 lib/sigar-bin/libsigar-ppc-aix-5.so             | Bin 0 -> 400925 bytes
 lib/sigar-bin/libsigar-ppc-linux.so             | Bin 0 -> 258547 bytes
 lib/sigar-bin/libsigar-ppc64-aix-5.so           | Bin 0 -> 425077 bytes
 lib/sigar-bin/libsigar-ppc64-linux.so           | Bin 0 -> 330767 bytes
 lib/sigar-bin/libsigar-s390x-linux.so           | Bin 0 -> 269932 bytes
 lib/sigar-bin/libsigar-sparc-solaris.so         | Bin 0 -> 285004 bytes
 lib/sigar-bin/libsigar-sparc64-solaris.so       | Bin 0 -> 261896 bytes
 lib/sigar-bin/libsigar-universal-macosx.dylib   | Bin 0 -> 377668 bytes
 lib/sigar-bin/libsigar-universal64-macosx.dylib | Bin 0 -> 397440 bytes
 lib/sigar-bin/libsigar-x86-freebsd-5.so         | Bin 0 -> 179751 bytes
 lib/sigar-bin/libsigar-x86-freebsd-6.so         | Bin 0 -> 179379 bytes
 lib/sigar-bin/libsigar-x86-linux.so             | Bin 0 -> 233385 bytes
 lib/sigar-bin/libsigar-x86-solaris.so           | Bin 0 -> 242880 bytes
 lib/sigar-bin/sigar-amd64-winnt.dll             | Bin 0 -> 402432 bytes
 lib/sigar-bin/sigar-x86-winnt.dll               | Bin 0 -> 266240 bytes
 lib/sigar-bin/sigar-x86-winnt.lib               | Bin 0 -> 99584 bytes
 .../cassandra/service/CassandraDaemon.java      |  20 +-
 .../apache/cassandra/utils/SigarLibrary.java    | 181 +++++++++++++++++
 35 files changed, 422 insertions(+), 7 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/CHANGES.txt
----------------------------------------------------------------------
diff --git a/CHANGES.txt b/CHANGES.txt
index 5ec542c..be80ee3 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 3.0
+ * Add Sigar library and perform basic OS settings check on startup (CASSANDRA-7838)
  * Support for scripting languages in user-defined functions (CASSANDRA-7526)
  * Support for aggregation functions (CASSANDRA-4914)
  * Improve query to read paxos table on propose (CASSANDRA-7929)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/NOTICE.txt
----------------------------------------------------------------------
diff --git a/NOTICE.txt b/NOTICE.txt
index bbe21d7..2fe15f5 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -63,3 +63,6 @@ HLL++ support provided by stream-lib
 
 Javassist
 (http://www.csg.ci.i.u-tokyo.ac.jp/~chiba/javassist/)
+
+SIGAR
+http://sigar.hyperic.com/

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/bin/cassandra.bat
----------------------------------------------------------------------
diff --git a/bin/cassandra.bat b/bin/cassandra.bat
index 1606dcc..cba69c6 100644
--- a/bin/cassandra.bat
+++ b/bin/cassandra.bat
@@ -18,7 +18,6 @@
 if "%OS%" == "Windows_NT" setlocal
 
 set ARG=%1
-if /i "%ARG%" == "LEGACY" goto runLegacy
 set INSTALL="INSTALL"
 set UNINSTALL="UNINSTALL"
 
@@ -26,6 +25,7 @@ pushd %~dp0..
 if NOT DEFINED CASSANDRA_HOME set CASSANDRA_HOME=%CD%
 popd
 
+if /i "%ARG%" == "LEGACY" goto runLegacy
 REM -----------------------------------------------------------------------------
 REM See if we have access to run unsigned powershell scripts
 for /F "delims=" %%i in ('powershell Get-ExecutionPolicy') do set PERMISSION=%%i
@@ -67,7 +67,8 @@ set JAVA_OPTS=-ea^
  -Dcom.sun.management.jmxremote.port=7199^
  -Dcom.sun.management.jmxremote.ssl=false^
  -Dcom.sun.management.jmxremote.authenticate=false^
- -Dlogback.configurationFile=logback.xml
+ -Dlogback.configurationFile=logback.xml^
+ -Djava.library.path=%CASSANDRA_HOME%\lib\sigar-bin
 
 REM ***** CLASSPATH library setting *****
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/bin/cassandra.in.bat
----------------------------------------------------------------------
diff --git a/bin/cassandra.in.bat b/bin/cassandra.in.bat
index e3304e7..a0eced5 100644
--- a/bin/cassandra.in.bat
+++ b/bin/cassandra.in.bat
@@ -48,3 +48,6 @@ set CASSANDRA_CLASSPATH=%CLASSPATH%;"%CASSANDRA_HOME%\build\classes\main";%CASSA
 
 REM Add the default storage location.  Can be overridden in conf\cassandra.yaml
 set CASSANDRA_PARAMS=%CASSANDRA_PARAMS% "-Dcassandra.storagedir=%CASSANDRA_HOME%\data"
+
+REM Add the sigar-bin path to the java.library.path CASSANDRA-7838
+set JAVA_OPTS=%JAVA_OPTS% -Djava.library.path=%CASSANDRA_HOME%\lib\sigar-bin"

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/bin/cassandra.in.sh
----------------------------------------------------------------------
diff --git a/bin/cassandra.in.sh b/bin/cassandra.in.sh
index 368c40e..ed124bc 100644
--- a/bin/cassandra.in.sh
+++ b/bin/cassandra.in.sh
@@ -50,3 +50,6 @@ if [ "$JVM_VENDOR" != "OpenJDK" -o "$JVM_VERSION" \> "1.6.0" ] \
 then
     JAVA_AGENT="$JAVA_AGENT -javaagent:$CASSANDRA_HOME/lib/jamm-0.2.6.jar"
 fi
+
+# Added sigar-bin to the java.library.path CASSANDRA-7838
+JAVA_OPTS="$JAVA_OPTS:-Djava.library.path=$CASSANDRA_HOME/lib/sigar-bin"

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/build.xml
----------------------------------------------------------------------
diff --git a/build.xml b/build.xml
index eaa1b60..708b950 100644
--- a/build.xml
+++ b/build.xml
@@ -369,6 +369,7 @@
           <dependency groupId="org.javassist" artifactId="javassist" version="3.18.2-GA"
/>
           <dependency groupId="net.sf.supercsv" artifactId="super-csv" version="2.1.0"
/>
 	      <dependency groupId="net.ju-n.compile-command-annotations" artifactId="compile-command-annotations"
version="1.2.0" />
+          <dependency groupId="org.fusesource" artifactId="sigar" version="1.6.4" />
         </dependencyManagement>
         <developer id="alakshman" name="Avinash Lakshman"/>
         <developer id="aleksey" name="Aleksey Yeschenko"/>
@@ -490,6 +491,8 @@
         <!-- don't need jamm unless running a server in which case it needs to be a -javagent
to be used anyway -->
         <dependency groupId="com.github.jbellis" artifactId="jamm"/>
         <dependency groupId="io.netty" artifactId="netty-all"/>
+
+        <dependency groupId="org.fusesource" artifactId="sigar" version="1.6.4"/>
       </artifact:pom>
       <artifact:pom id="thrift-pom"
                     artifactId="cassandra-thrift"

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/conf/cassandra-env.ps1
----------------------------------------------------------------------
diff --git a/conf/cassandra-env.ps1 b/conf/cassandra-env.ps1
index 47f4fa3..85136a8 100644
--- a/conf/cassandra-env.ps1
+++ b/conf/cassandra-env.ps1
@@ -292,6 +292,9 @@ Function SetCassandraEnvironment
     CalculateHeapSizes
 
     ParseJVMInfo
+    # Add sigar env - see Cassandra-7838
+    $env:JVM_OPTS = "$env:JVM_OPTS -Djava.library.path=$env:CASSANDRA_HOME\lib\sigar-bin"
+
     # add the jamm javaagent
     if (($env:JVM_VENDOR -ne "OpenJDK") -or ($env:JVM_VERSION.CompareTo("1.6.0") -eq 1) -or
         (($env:JVM_VERSION -eq "1.6.0") -and ($env:JVM_PATCH_VERSION.CompareTo("22") -eq
1)))

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/conf/cassandra-env.sh
----------------------------------------------------------------------
diff --git a/conf/cassandra-env.sh b/conf/cassandra-env.sh
index 875cbeb..a0ab30d 100644
--- a/conf/cassandra-env.sh
+++ b/conf/cassandra-env.sh
@@ -275,6 +275,11 @@ JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv4Stack=true"
 #MX4J_ADDRESS="-Dmx4jaddress=127.0.0.1"
 #MX4J_PORT="-Dmx4jport=8081"
 
+# Cassandra uses SIGAR to capture OS metrics CASSANDRA-7838
+# for SIGAR we have to set the java.library.path
+# to the location of the native libraries.
+JVM_OPTS="$JVM_OPTS -Djava.library.path=$CASSANDRA_HOME/lib/sigar-bin"
+
 JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.port=$JMX_PORT"
 JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.rmi.port=$JMX_PORT"
 JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.ssl=false"

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/debian/cassandra.install
----------------------------------------------------------------------
diff --git a/debian/cassandra.install b/debian/cassandra.install
index 2fbbac1..7f5aa10 100644
--- a/debian/cassandra.install
+++ b/debian/cassandra.install
@@ -20,4 +20,5 @@ bin/sstableupgrade usr/bin
 tools/bin/cassandra-stress usr/bin
 lib/*.jar usr/share/cassandra/lib
 lib/*.zip usr/share/cassandra/lib
+lib/sigar-bin/* usr/share/cassandra/lib/sigar-bin
 lib/licenses usr/share/doc/cassandra

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/licenses/sigar-1.6.4.txt
----------------------------------------------------------------------
diff --git a/lib/licenses/sigar-1.6.4.txt b/lib/licenses/sigar-1.6.4.txt
new file mode 100644
index 0000000..11069ed
--- /dev/null
+++ b/lib/licenses/sigar-1.6.4.txt
@@ -0,0 +1,201 @@
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+
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-1.6.4.jar
----------------------------------------------------------------------
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-amd64-freebsd-6.so
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-amd64-linux.so
----------------------------------------------------------------------
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-amd64-solaris.so
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-ia64-hpux-11.sl
----------------------------------------------------------------------
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-ia64-linux.so
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-pa-hpux-11.sl
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/lib/sigar-bin/libsigar-ppc-aix-5.so
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/src/java/org/apache/cassandra/service/CassandraDaemon.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/CassandraDaemon.java b/src/java/org/apache/cassandra/service/CassandraDaemon.java
index 2baf3fe..cc81c4f 100644
--- a/src/java/org/apache/cassandra/service/CassandraDaemon.java
+++ b/src/java/org/apache/cassandra/service/CassandraDaemon.java
@@ -33,6 +33,7 @@ import javax.management.StandardMBean;
 
 import com.google.common.collect.Iterables;
 import com.google.common.util.concurrent.Uninterruptibles;
+import org.hyperic.sigar.SigarException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -85,7 +86,7 @@ public class CassandraDaemon
      */
     protected void setup()
     {
-        try 
+        try
         {
             logger.info("Hostname: {}", InetAddress.getLocalHost().getHostName());
         }
@@ -178,6 +179,13 @@ public class CassandraDaemon
         Iterable<String> dirs = Iterables.concat(Arrays.asList(DatabaseDescriptor.getAllDataFileLocations()),
                                                  Arrays.asList(DatabaseDescriptor.getCommitLogLocation(),
                                                                DatabaseDescriptor.getSavedCachesLocation()));
+
+        SigarLibrary sigarLibrary = new SigarLibrary();
+        if (sigarLibrary.initialized())
+            sigarLibrary.warnIfRunningInDegradedMode();
+        else
+            logger.info("Sigar could not be initialized");
+
         for (String dataDir : dirs)
         {
             logger.debug("Checking directory {}", dataDir);
@@ -200,6 +208,8 @@ public class CassandraDaemon
                 // if permissions aren't sufficient, stop cassandra.
                 System.exit(3);
             }
+
+
         }
 
         if (CacheService.instance == null) // should never happen
@@ -441,7 +451,7 @@ public class CassandraDaemon
                 logger.error("error registering MBean {}", MBEAN_NAME, e);
                 //Allow the server to start even if the bean can't be registered
             }
-            
+
             setup();
 
             if (pidFile != null)
@@ -533,15 +543,15 @@ public class CassandraDaemon
     {
         instance.activate();
     }
-    
+
     static class NativeAccess implements NativeAccessMBean
     {
         public boolean isAvailable()
         {
             return CLibrary.jnaAvailable();
         }
-        
-        public boolean isMemoryLockable() 
+
+        public boolean isMemoryLockable()
         {
             return CLibrary.jnaMemoryLockable();
         }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/861c4cf2/src/java/org/apache/cassandra/utils/SigarLibrary.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/utils/SigarLibrary.java b/src/java/org/apache/cassandra/utils/SigarLibrary.java
new file mode 100644
index 0000000..bcfa58e
--- /dev/null
+++ b/src/java/org/apache/cassandra/utils/SigarLibrary.java
@@ -0,0 +1,181 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.cassandra.utils;
+
+import org.hyperic.sigar.*;
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+
+public class SigarLibrary
+{
+    private Logger logger = LoggerFactory.getLogger(SigarLibrary.class);
+
+    private Sigar sigar;
+    private FileSystemMap mounts = null;
+    private boolean initialized = false;
+    private long INFINITY = -1;
+    private long EXPECTED_MIN_NOFILE = 10000l; // number of files that can be opened
+    private long EXPECTED_NPROC = 32768l; // number of processes
+    private long EXPECTED_AS = INFINITY; // address space
+
+    // TODO: Determine memlock limits if possible
+    // TODO: Determine if file system is remote or local
+    // TODO: Determine if disk latency is within acceptable limits
+
+    public SigarLibrary()
+    {
+        logger.info("Initializing SIGAR library");
+        try
+        {
+            sigar = new Sigar();
+            mounts = sigar.getFileSystemMap();
+            initialized = true;
+        }
+        catch (SigarException e)
+        {
+            logger.info("Could not initialize SIGAR library {} ", e.getMessage());
+        }
+        catch (UnsatisfiedLinkError linkError)
+        {
+            logger.info("Could not initialize SIGAR library {} ", linkError.getMessage());
+        }
+    }
+
+    /**
+     *
+     * @return true or false indicating if sigar was successfully initialized
+     */
+    public boolean initialized()
+    {
+        return initialized;
+    }
+
+    private boolean hasAcceptableProcNumber()
+    {
+        try
+        {
+            long fileMax = sigar.getResourceLimit().getProcessesMax();
+            if (fileMax >= EXPECTED_NPROC || fileMax == INFINITY)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+        catch (SigarException sigarException)
+        {
+            logger.warn("Could not determine if max processes was acceptable. Error message:
" + sigarException);
+            return false;
+        }
+    }
+
+    private boolean hasAcceptableFileLimits()
+    {
+        try
+        {
+            long fileMax = sigar.getResourceLimit().getOpenFilesMax();
+            if (fileMax >= EXPECTED_MIN_NOFILE || fileMax == INFINITY)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+        catch (SigarException sigarException)
+        {
+            logger.warn("Could not determine if max open file handle limit is correctly configured.
Error message: " + sigarException);
+            return false;
+        }
+    }
+
+    private boolean hasAcceptableAddressSpace()
+    {
+        // Check is invalid on Windows
+        if (!FBUtilities.isUnix())
+            return true;
+
+        try
+        {
+            long fileMax = sigar.getResourceLimit().getVirtualMemoryMax();
+            if (fileMax == EXPECTED_AS)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+        catch (SigarException sigarException)
+        {
+            logger.warn("Could not determine if VirtualMemoryMax was acceptable. Error message:
" + sigarException);
+            return false;
+        }
+    }
+
+    private boolean isSwapEnabled()
+    {
+        try
+        {
+            Swap swap = sigar.getSwap();
+            long swapSize = swap.getTotal();
+            if (swapSize > 0)
+            {
+                return false;
+            }
+            else
+            {
+                return true;
+            }
+        }
+        catch (SigarException sigarException)
+        {
+            logger.warn("Could not determine if swap configuration is acceptable. Error message:
" + sigarException);
+            return false;
+        }
+    }
+
+    public void warnIfRunningInDegradedMode()
+    {
+        if (initialized)
+        {
+            boolean swapEnabled = isSwapEnabled();
+            boolean goodAddressSpace = hasAcceptableAddressSpace();
+            boolean goodFileLimits = hasAcceptableFileLimits();
+            boolean goodProcNumber = hasAcceptableProcNumber();
+            if (swapEnabled || !goodAddressSpace || !goodFileLimits || !goodProcNumber)
+            {
+                logger.warn("Cassandra server running in degraded mode. Is swap disabled?
: {},  Address space adequate? : {}, " +
+                            " nofile limit adequate? : {}, nproc limit adequate? : {} ",
swapEnabled, goodAddressSpace,
+                            goodFileLimits, goodProcNumber );
+            }
+            else
+            {
+                logger.info("Checked OS settings and found them configured for optimal performance.");
+            }
+        }
+        else
+        {
+            logger.info("Sigar could not be initialized, test for checking degraded mode
omitted.");
+        }
+    }
+}


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