[GitHub] jiazhai closed pull request #896: ISSUE #895: print entrylog metadata

[GitBox <gi...@apache.org>]

jiazhai closed pull request #896: ISSUE #895: print entrylog metadata
URL: https://github.com/apache/bookkeeper/pull/896
 
 
   

This is a PR merged from a forked repository.
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diff --git a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
index aacd7a21f..d0a15f3c9 100644
--- a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
+++ b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
@@ -51,6 +51,7 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.TreeMap;
@@ -135,6 +136,7 @@
     static final String CMD_SIMPLETEST = "simpletest";
     static final String CMD_BOOKIESANITYTEST = "bookiesanity";
     static final String CMD_READLOG = "readlog";
+    static final String CMD_READLOGMETADATA = "readlogmetadata";
     static final String CMD_READJOURNAL = "readjournal";
     static final String CMD_LASTMARK = "lastmark";
     static final String CMD_AUTORECOVERY = "autorecovery";
@@ -1104,6 +1106,63 @@ Options getOptions() {
         }
     }
 
+    /**
+     * Command to print metadata of entrylog.
+     */
+    class ReadLogMetadataCmd extends MyCommand {
+        Options rlOpts = new Options();
+
+        ReadLogMetadataCmd() {
+            super(CMD_READLOGMETADATA);
+        }
+
+        @Override
+        public int runCmd(CommandLine cmdLine) throws Exception {
+            String[] leftArgs = cmdLine.getArgs();
+            if (leftArgs.length <= 0) {
+                LOG.error("ERROR: missing entry log id or entry log file name");
+                printUsage();
+                return -1;
+            }
+
+            long logId;
+            try {
+                logId = Long.parseLong(leftArgs[0]);
+            } catch (NumberFormatException nfe) {
+                // not a entry log id
+                File f = new File(leftArgs[0]);
+                String name = f.getName();
+                if (!name.endsWith(".log")) {
+                    // not a log file
+                    LOG.error("ERROR: invalid entry log file name " + leftArgs[0]);
+                    printUsage();
+                    return -1;
+                }
+                String idString = name.split("\\.")[0];
+                logId = Long.parseLong(idString, 16);
+            }
+
+            printEntryLogMetadata(logId);
+
+            return 0;
+        }
+
+        @Override
+        String getDescription() {
+            return "Prints entrylog's metadata";
+        }
+
+        @Override
+        String getUsage() {
+            return "readlogmetadata <entry_log_id | entry_log_file_name>";
+        }
+
+        @Override
+        Options getOptions() {
+            return rlOpts;
+        }
+    }
+
     /**
      * Command to read journal files.
      */
@@ -2364,6 +2423,7 @@ int runCmd(CommandLine cmdLine) throws Exception {
         commands.put(CMD_SIMPLETEST, new SimpleTestCmd());
         commands.put(CMD_BOOKIESANITYTEST, new BookieSanityTestCmd());
         commands.put(CMD_READLOG, new ReadLogCmd());
+        commands.put(CMD_READLOGMETADATA, new ReadLogMetadataCmd());
         commands.put(CMD_READJOURNAL, new ReadJournalCmd());
         commands.put(CMD_LASTMARK, new LastMarkCmd());
         commands.put(CMD_AUTORECOVERY, new AutoRecoveryCmd());
@@ -2682,6 +2742,16 @@ protected void readLedgerIndexEntries(long ledgerId) throws IOException {
         }
     }
 
+    protected void printEntryLogMetadata(long logId) throws IOException {
+        LOG.info("Print entryLogMetadata of entrylog {} ({}.log)", logId, Long.toHexString(logId));
+        initEntryLogger();
+        EntryLogMetadata entryLogMetadata = entryLogger.getEntryLogMetadata(logId);
+        entryLogMetadata.getLedgersMap().forEach((ledgerId, size) -> {
+            LOG.info("--------- Lid={}, TotalSizeOfEntriesOfLedger={}  ---------",
+                    ledgerIdFormatter.formatLedgerId(ledgerId), size);
+        });
+    }
+
     /**
      * Get an iterable over pages of entries and locations for a ledger.
      *


 

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