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HADOOP-13663 Index out of range in SysInfoWindows. Contributed by Inigo Goiri

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This commit is contained in:
Steve Loughran 2016-09-29 11:35:00 +01:00
parent 47f80922dc
commit 1518cb9532
2 changed files with 37 additions and 28 deletions
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8
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SysInfoWindows.java
View File

@ -100,8 +100,9 @@ void refreshIfNeeded() {
String sysInfoStr = getSystemInfoInfoFromShell(); String sysInfoStr = getSystemInfoInfoFromShell();
if (sysInfoStr != null) { if (sysInfoStr != null) {
final int sysInfoSplitCount = 11; final int sysInfoSplitCount = 11;
String[] sysInfo = sysInfoStr.substring(0, sysInfoStr.indexOf("\r\n")) int index = sysInfoStr.indexOf("\r\n");
.split(","); if (index >= 0) {
String[] sysInfo = sysInfoStr.substring(0, index).split(",");
if (sysInfo.length == sysInfoSplitCount) { if (sysInfo.length == sysInfoSplitCount) {
try { try {
vmemSize = Long.parseLong(sysInfo[0]); vmemSize = Long.parseLong(sysInfo[0]);
@ -131,6 +132,9 @@ void refreshIfNeeded() {
LOG.warn("Expected split length of sysInfo to be " LOG.warn("Expected split length of sysInfo to be "
+ sysInfoSplitCount + ". Got " + sysInfo.length); + sysInfoSplitCount + ". Got " + sysInfo.length);
} }
} else {
LOG.warn("Wrong output from sysInfo: " + sysInfoStr);
}
} }
} }
} }

7
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestSysInfoWindows.java
View File

@ -141,10 +141,15 @@ public void refreshAndCpuUsageMulticore() throws InterruptedException {
@Test(timeout = 10000) @Test(timeout = 10000)
public void errorInGetSystemInfo() { public void errorInGetSystemInfo() {
SysInfoWindowsMock tester = new SysInfoWindowsMock(); SysInfoWindowsMock tester = new SysInfoWindowsMock();
// info str derived from windows shell command has \r\n termination // info str derived from windows shell command is null
tester.setSysinfoString(null); tester.setSysinfoString(null);
// call a method to refresh values // call a method to refresh values
tester.getAvailablePhysicalMemorySize(); tester.getAvailablePhysicalMemorySize();
// info str derived from windows shell command with no \r\n termination
tester.setSysinfoString("");
// call a method to refresh values
tester.getAvailablePhysicalMemorySize();
} }
} }