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HBASE-5812 Add log rolling to HLogPerformanceEvaluation 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1327282 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2012-04-17 21:13:00 +00:00
parent 1e7ca13fda
commit 183e36e43b
1 changed files with 33 additions and 5 deletions
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38
src/test/java/org/apache/hadoop/hbase/regionserver/wal/HLogPerformanceEvaluation.java
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@ -124,6 +124,8 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
int numFamilies = 1;
boolean noSync = false;
boolean verify = false;
boolean verbose = false;
long roll = Long.MAX_VALUE;
// Process command line args
for (int i = 0; i < args.length; i++) {
String cmd = args[i];
@ -147,6 +149,10 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
noSync = true;
} else if (cmd.equals("-verify")) {
verify = true;
} else if (cmd.equals("-verbose")) {
verbose = true;
} else if (cmd.equals("-roll")) {
roll = Long.parseLong(args[++i]);
} else {
printUsageAndExit();
}
@ -165,8 +171,22 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
cleanRegionRootDir(fs, rootRegionDir);
// Initialize Table Descriptor
HTableDescriptor htd = createHTableDescriptor(numFamilies);
final long whenToRoll = roll;
HLog hlog = new HLog(fs, new Path(rootRegionDir, "wals"),
new Path(rootRegionDir, "old.wals"), getConf());
new Path(rootRegionDir, "old.wals"), getConf()) {
int appends = 0;
protected void doWrite(HRegionInfo info, HLogKey logKey, WALEdit logEdit,
HTableDescriptor htd)
throws IOException {
this.appends++;
if (this.appends % whenToRoll == 0) {
LOG.info("Rolling after " + appends + " edits");
rollWriter();
}
super.doWrite(info, logKey, logEdit, htd);
};
};
hlog.rollWriter();
HRegion region = null;
try {
region = openRegion(fs, rootRegionDir, htd, hlog);
@ -179,8 +199,13 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
}
if (verify) {
Path dir = hlog.getDir();
long editCount = 0;
for (FileStatus fss: fs.listStatus(dir)) {
verify(fss.getPath(), numIterations * numThreads);
editCount += verify(fss.getPath(), verbose);
}
long expected = numIterations * numThreads;
if (editCount != expected) {
throw new IllegalStateException("Counted=" + editCount + ", expected=" + expected);
}
}
} finally {
@ -209,10 +234,10 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
* Verify that sequenceids are ascending and that the file has expected number
* of edits.
* @param wal
* @param editsCount
* @return Count of edits.
* @throws IOException
*/
private void verify(final Path wal, final long editsCount) throws IOException {
private long verify(final Path wal, final boolean verbose) throws IOException {
HLog.Reader reader = HLog.getReader(wal.getFileSystem(getConf()), wal, getConf());
long previousSeqid = -1;
long count = 0;
@ -222,16 +247,17 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
if (e == null) break;
count++;
long seqid = e.getKey().getLogSeqNum();
if (verbose) LOG.info("seqid=" + seqid);
if (previousSeqid >= seqid) {
throw new IllegalStateException("wal=" + wal.getName() +
", previousSeqid=" + previousSeqid + ", seqid=" + seqid);
}
previousSeqid = seqid;
}
if (count != editsCount) throw new IllegalStateException("Expected=" + editsCount + ", found=" + count);
} finally {
reader.close();
}
return count;
}
private static void logBenchmarkResult(String testName, long numTests, long totalTime) {
@ -252,6 +278,8 @@ public final class HLogPerformanceEvaluation extends Configured implements Tool
System.err.println(" -valueSize <N> Row/Col value size in byte.");
System.err.println(" -nosync Append without syncing");
System.err.println(" -verify Verify edits written in sequence");
System.err.println(" -verbose Output extra info; e.g. all edit seq ids when verifying");
System.err.println(" -roll <N> Roll the way every N appends");
System.exit(1);
}