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changes to fill in all of the BlockLocations information for each file. #107

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changes to fill in all of the BlockLocations information for each file. #107

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52 changes: 45 additions & 7 deletions src/main/java/org/apache/hadoop/fs/glusterfs/GlusterFSXattr.java
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
Expand All @@ -41,14 +43,48 @@ public enum CMD {
GET_HINTS, GET_REPLICATION, GET_BLOCK_SIZE, CHECK_FOR_QUICK_IO
}

private static String hostname;
private static String hostname;

private String getFattrCmdBase = null;

public GlusterFSXattr(String getAttr) {
getFattrCmdBase=getAttr;
}

public String getRack(String host){
// returns the rack associated with a host.

return "default-rack";
}

private static String[] hostsToIp(String[] hosts){
String[] ips = new String[hosts.length];
for(int i=0;i<hosts.length;i++){
try {
ips[i] = InetAddress.getByName(hosts[i]).getHostAddress();
} catch (UnknownHostException e) {
System.out.println("error resolving " + hosts[i]);
e.printStackTrace();
}

}
return ips;
}

private String[] hostsToTopology(String[] hosts){
String[] ips = new String[hosts.length];
for(int i=0;i<hosts.length;i++){
try {
ips[i] = "/" + getRack(hosts[i]) + "/" + InetAddress.getByName(hosts[i]).getHostAddress();
} catch (UnknownHostException e) {
System.out.println("error resolving " + hosts[i]);
e.printStackTrace();
}

}
return ips;
}

public GlusterFSXattr(){
getFattrCmdBase = "sudo getfattr -m . -n trusted.glusterfs.pathinfo";
}
Expand Down Expand Up @@ -268,7 +304,8 @@ BlockLocation[] getHints(HashMap<String, ArrayList<String>> vol,HashMap<String,

if(hnts==null){
result=new BlockLocation[1];
result[0]=new BlockLocation(null, new String[]{brick2host(brick)}, start, len);
String[] bl = new String[]{brick2host(brick)};
result[0]=new BlockLocation(hostsToIp(bl), bl,hostsToTopology(bl), start, len);
}else
hnts.put(0, new GlusterFSBrickClass(brick, start, len, false, -1, -1, -1));
break;
Expand Down Expand Up @@ -301,7 +338,7 @@ BlockLocation[] getHints(HashMap<String, ArrayList<String>> vol,HashMap<String,
}

if(hnts==null)
result[0]=new BlockLocation(null, blks, start, len);
result[0]=new BlockLocation(hostsToIp(blks), blks, hostsToTopology(blks), start, len);

break;

Expand Down Expand Up @@ -378,7 +415,7 @@ else if(currAlloc<=(rsize*rcount)-1){

if(hnts==null)
for(int k=0;k<nrAllocs;k++)
result[k]=new BlockLocation(null, repl[k].getReplHosts(), repl[k].getStartLen(), repl[k].getOffLen());
result[k]=new BlockLocation(hostsToIp(repl[k].getReplHosts()), repl[k].getReplHosts(), hostsToTopology(repl[k].getReplHosts()), repl[k].getStartLen(), repl[k].getOffLen());

break;

Expand Down Expand Up @@ -415,9 +452,10 @@ else if(currAlloc<=(rsize*rcount)-1){
done=true;
}

if(hnts==null)
result[allocCtr]=new BlockLocation(null, new String[]{brick2host(brick)}, stripeStart, (stripeEnd-stripeStart));
else if(allocCtr<=stripedBricks.size()){
if(hnts==null){
String host = brick2host(brick);
result[allocCtr]=new BlockLocation(hostsToIp(new String[]{host}), new String[]{host}, hostsToTopology(new String[]{host}), stripeStart, (stripeEnd-stripeStart));
}else if(allocCtr<=stripedBricks.size()){
hnts.put(allocCtr, new GlusterFSBrickClass(brick, stripeStart, (stripeEnd-stripeStart), true, stripeSize, stripedBricks.size(), -1));
}else
break;
Expand Down