Class Quotas

java.lang.Object
org.apache.zookeeper.Quotas
public class Quotas extends Object
this class manages quotas and has many other utils for quota

  • Field Details

    • procZookeeper

      public static final String procZookeeper
      the zookeeper nodes that acts as the management and status node
      See Also:

    • quotaZookeeper

      public static final String quotaZookeeper
      the zookeeper quota node that acts as the quota management node for zookeeper
      See Also:

    • limitNode

      public static final String limitNode
      the limit node that has the limit of a subtree
      See Also:

    • statNode

      public static final String statNode
      the stat node that monitors the limit of a subtree.
      See Also:

  • Constructor Details

    • Quotas

      public Quotas()

  • Method Details

    • quotaPath

      public static String quotaPath(String path)
      return the quota path associated with this prefix
      Parameters:
      path - the actual path in zookeeper.
      Returns:
      the quota path

    • limitPath

      public static String limitPath(String path)
      return the limit quota path associated with this prefix
      Parameters:
      path - the actual path in zookeeper.
      Returns:
      the limit quota path

    • statPath

      public static String statPath(String path)
      return the stat quota path associated with this prefix.
      Parameters:
      path - the actual path in zookeeper
      Returns:
      the stat quota path

    • trimQuotaPath

      public static String trimQuotaPath(String quotaPath)
      return the real path associated with this quotaPath.
      Parameters:
      quotaPath - the quotaPath which's started with /zookeeper/quota
      Returns:
      the real path associated with this quotaPath, or an empty string if the given path is not actually under /zookeeper/quota. Returning "" rather than throwing keeps a stray zookeeper_limits node elsewhere under /zookeeper (or the /zookeeper/quota root itself) from raising StringIndexOutOfBoundsException on the transaction-apply path, which would kill the SyncRequestProcessor critical thread and leave the dataDir unbootable on replay.