https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
  • Andres de la Peña
  • Avinash Lakshman
  • Aleksey Yeschenko
  • Aaron Morton
  • Ariel Weisberg
  • Blake Eggleston
  • Benedict Elliott Smith
  • Benjamin Lerer
  • Branimir Lambov
  • Brandon Williams
  • Carl Yeksigian
  • David Brosiusd
  • Dikang Gu
  • Eric Evans
  • Gary Dusbabek
  • Chris Goffinet
  • Alex Petrov
  • Laine Jaakko Olavi
  • T Jake Luciani
  • Jason Brown
  • Jonathan Ellis
  • Jake Farrell
  • Jeff Jirsa
  • Joel Knighton
  • Josh McKenzie
  • Johan Oskarsson
  • Jun Rao
  • Jay Zhuang
  • Sankalp Kohli
  • Marcus Eriksson
  • Michael Semb Wever
  • Mikhail Stepura
  • Michael Shuler
  • Paulo Motta
  • Prashant Malik
  • Robert Stupp
  • Peter Schuller
  • Sam Tunnicliffe
  • Sylvain Lebresne
  • Stefania Alborghetti
  • Tyler Hobbs
  • Vijay Parthasarathy
  • Pavel Yaskevich
  • Yuki Morishita
  • Nate McCall 
class org.apache.cassandra.db.commitlog.PeriodicCommitLogService extends org.apache.cassandra.db.commitlog.AbstractCommitLogService
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.cassandra.db.commitlog.PeriodicCommitLogService
  super_class: org.apache.cassandra.db.commitlog.AbstractCommitLogService
{
  private static final long blockWhenSyncLagsNanos;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 24
            invokestatic org.apache.cassandra.config.DatabaseDescriptor.getCommitLogSyncPeriod:()I
            i2d
            ldc 1500000.0
            dmul
            d2l
            putstatic org.apache.cassandra.db.commitlog.PeriodicCommitLogService.blockWhenSyncLagsNanos:J
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.apache.cassandra.db.commitlog.CommitLog);
    descriptor: (Lorg/apache/cassandra/db/commitlog/CommitLog;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.apache.cassandra.db.commitlog.PeriodicCommitLogService this
        start local 1 // org.apache.cassandra.db.commitlog.CommitLog commitLog
         0: .line 28
            aload 0 /* this */
            aload 1 /* commitLog */
            ldc "PERIODIC-COMMIT-LOG-SYNCER"
            invokestatic org.apache.cassandra.config.DatabaseDescriptor.getCommitLogSyncPeriod:()I
            i2l
         1: .line 29
            aload 1 /* commitLog */
            getfield org.apache.cassandra.db.commitlog.CommitLog.configuration:Lorg/apache/cassandra/db/commitlog/CommitLog$Configuration;
            invokevirtual org.apache.cassandra.db.commitlog.CommitLog$Configuration.useCompression:()Z
            ifne 2
            aload 1 /* commitLog */
            getfield org.apache.cassandra.db.commitlog.CommitLog.configuration:Lorg/apache/cassandra/db/commitlog/CommitLog$Configuration;
            invokevirtual org.apache.cassandra.db.commitlog.CommitLog$Configuration.useEncryption:()Z
            ifeq 3
      StackMap locals: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog
      StackMap stack: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog java.lang.String long
         2: iconst_0
            goto 4
      StackMap locals: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog
      StackMap stack: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog java.lang.String long
         3: iconst_1
      StackMap locals: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog
      StackMap stack: uninitialized-this org.apache.cassandra.db.commitlog.CommitLog java.lang.String long int
         4: invokespecial org.apache.cassandra.db.commitlog.AbstractCommitLogService.<init>:(Lorg/apache/cassandra/db/commitlog/CommitLog;Ljava/lang/String;JZ)V
         5: .line 30
            return
        end local 1 // org.apache.cassandra.db.commitlog.CommitLog commitLog
        end local 0 // org.apache.cassandra.db.commitlog.PeriodicCommitLogService this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Lorg/apache/cassandra/db/commitlog/PeriodicCommitLogService;
            0    6     1  commitLog  Lorg/apache/cassandra/db/commitlog/CommitLog;
    MethodParameters:
           Name  Flags
      commitLog  final

  protected void maybeWaitForSync(org.apache.cassandra.db.commitlog.CommitLogSegment$Allocation);
    descriptor: (Lorg/apache/cassandra/db/commitlog/CommitLogSegment$Allocation;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // org.apache.cassandra.db.commitlog.PeriodicCommitLogService this
        start local 1 // org.apache.cassandra.db.commitlog.CommitLogSegment$Allocation alloc
         0: .line 34
            invokestatic java.lang.System.nanoTime:()J
            getstatic org.apache.cassandra.db.commitlog.PeriodicCommitLogService.blockWhenSyncLagsNanos:J
            lsub
            lstore 2 /* expectedSyncTime */
        start local 2 // long expectedSyncTime
         1: .line 35
            aload 0 /* this */
            getfield org.apache.cassandra.db.commitlog.PeriodicCommitLogService.lastSyncedAt:J
            lload 2 /* expectedSyncTime */
            lcmp
            ifge 5
         2: .line 37
            aload 0 /* this */
            getfield org.apache.cassandra.db.commitlog.PeriodicCommitLogService.pending:Ljava/util/concurrent/atomic/AtomicLong;
            invokevirtual java.util.concurrent.atomic.AtomicLong.incrementAndGet:()J
            pop2
         3: .line 38
            aload 0 /* this */
            lload 2 /* expectedSyncTime */
            aload 0 /* this */
            getfield org.apache.cassandra.db.commitlog.PeriodicCommitLogService.commitLog:Lorg/apache/cassandra/db/commitlog/CommitLog;
            getfield org.apache.cassandra.db.commitlog.CommitLog.metrics:Lorg/apache/cassandra/metrics/CommitLogMetrics;
            getfield org.apache.cassandra.metrics.CommitLogMetrics.waitingOnCommit:Lcom/codahale/metrics/Timer;
            invokevirtual com.codahale.metrics.Timer.time:()Lcom/codahale/metrics/Timer$Context;
            invokevirtual org.apache.cassandra.db.commitlog.PeriodicCommitLogService.awaitSyncAt:(JLcom/codahale/metrics/Timer$Context;)V
         4: .line 39
            aload 0 /* this */
            getfield org.apache.cassandra.db.commitlog.PeriodicCommitLogService.pending:Ljava/util/concurrent/atomic/AtomicLong;
            invokevirtual java.util.concurrent.atomic.AtomicLong.decrementAndGet:()J
            pop2
         5: .line 41
      StackMap locals: long
      StackMap stack:
            return
        end local 2 // long expectedSyncTime
        end local 1 // org.apache.cassandra.db.commitlog.CommitLogSegment$Allocation alloc
        end local 0 // org.apache.cassandra.db.commitlog.PeriodicCommitLogService this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    6     0              this  Lorg/apache/cassandra/db/commitlog/PeriodicCommitLogService;
            0    6     1             alloc  Lorg/apache/cassandra/db/commitlog/CommitLogSegment$Allocation;
            1    6     2  expectedSyncTime  J
    MethodParameters:
       Name  Flags
      alloc  
}
SourceFile: "PeriodicCommitLogService.java"
InnerClasses:
  public Context = com.codahale.metrics.Timer$Context of com.codahale.metrics.Timer
  public final Configuration = org.apache.cassandra.db.commitlog.CommitLog$Configuration of org.apache.cassandra.db.commitlog.CommitLog
  protected Allocation = org.apache.cassandra.db.commitlog.CommitLogSegment$Allocation of org.apache.cassandra.db.commitlog.CommitLogSegment