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## net.i2p.router.peermanager
Class DBHistory

    java.lang.Object
      net.i2p.router.peermanager.DBHistory

    public class DBHistory

extends Object

History of NetDb related activities (lookups, replies, stores, etc)

Constructor Summary
`DBHistory(RouterContext context, String statGroup)`

Method Summary
`void` | `coalesceStats()`
`long` | `getAvgDelayBetweenLookupsReceived()` Deprecated. unused
`RateStat` | `getFailedLookupRate()` how often does the peer fail to reply to a lookup request, broken into 1 hour and 1 day periods.
`long` | `getFailedLookups()` Deprecated. unused
`RateStat` | `getInvalidReplyRate()` not sure how much this is used, to be investigated
`long` | `getLastLookupFailed()`
`long` | `getLastLookupReceived()` Deprecated. unused
`long` | `getLastLookupSuccessful()`
`long` | `getLastStoreFailed()`
`long` | `getLastStoreSuccessful()`
`long` | `getLookupReplyDuplicate()` Deprecated. unused
`long` | `getLookupReplyInvalid()` Deprecated. unused
`long` | `getLookupReplyNew()` Deprecated. unused
`long` | `getLookupReplyOld()` Deprecated. unused
`long` | `getLookupsReceived()` Deprecated. unused
`long` | `getSuccessfulLookups()` Deprecated. unused
`long` | `getUnpromptedDbStoreNew()` how many times have they sent us data we didn't ask for and that we've never seen?
`long` | `getUnpromptedDbStoreOld()` how many times have they sent us data we didn't ask for but that we have seen?
`void` | `load(Properties props)`
`void` | `lookupFailed()` Note that the peer failed to respond to the db lookup in any way
`void` | `lookupReceived()` Note that the peer sent us a lookup
`void` | `lookupReply(int newPeers, int oldPeers, int invalid, int duplicate)` Receive a lookup reply from the peer, where they gave us the specified info
`void` | `lookupSuccessful()` Note that the peer was not only able to respond to the lookup, but sent us the data we wanted!
`void` | `setAvgDelayBetweenLookupsReceived(long ms)`
`void` | `setFailedLookups(long num)`
`void` | `setLastLookupReceived(long when)`
`void` | `setLookupReplyDuplicate(long num)`
`void` | `setLookupReplyInvalid(long num)`
`void` | `setLookupReplyNew(long num)`
`void` | `setLookupReplyOld(long num)`
`void` | `setLookupsReceived(long num)`
`void` | `setSuccessfulLookups(long num)`
`void` | `setUnpromptedDbStoreNew(long num)`
`void` | `setUnpromptedDbStoreOld(long num)`
`void` | `store(OutputStream out)`
`void` | `storeFailed()` Note that floodfill verify failed
`void` | `storeSuccessful()` Note that we successfully stored to a floodfill peer and verified the result by asking another floodfill peer
`void` | `unpromptedStoreReceived(boolean wasNew)` Note that the peer sent us a data point without us asking for it

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DBHistory

    public DBHistory(RouterContext context,
                     String statGroup)

Method Detail

### getSuccessfulLookups

    public long getSuccessfulLookups()

  Deprecated. unused

  how many times we have sent them a db lookup and received the value back from them

### getFailedLookups

    public long getFailedLookups()

  Deprecated. unused

  how many times we have sent them a db lookup and not received the value or a lookup reply

### getLookupReplyNew

    public long getLookupReplyNew()

  Deprecated. unused

  how many peers that we have never seen before did lookups provide us with?

### getLookupReplyOld

    public long getLookupReplyOld()

  Deprecated. unused

  how many peers that we have already seen did lookups provide us with?

### getLookupReplyDuplicate

    public long getLookupReplyDuplicate()

  Deprecated. unused

  how many peers that we explicitly asked the peer not to send us did they reply with?

### getLookupReplyInvalid

    public long getLookupReplyInvalid()

  Deprecated. unused

  how many peers that were incorrectly formatted / expired / otherwise illegal did lookups provide us with?

### getLookupsReceived

    public long getLookupsReceived()

  Deprecated. unused

  how many lookups this peer has sent us?

### getAvgDelayBetweenLookupsReceived

    public long getAvgDelayBetweenLookupsReceived()

  Deprecated. unused

  how frequently do they send us lookup requests?

### getLastLookupReceived

    public long getLastLookupReceived()

  Deprecated. unused

  when did they last send us a request?

### getLastLookupSuccessful

    public long getLastLookupSuccessful()

### getLastLookupFailed

    public long getLastLookupFailed()

### getLastStoreSuccessful

    public long getLastStoreSuccessful()

### getLastStoreFailed

    public long getLastStoreFailed()

### getUnpromptedDbStoreNew

    public long getUnpromptedDbStoreNew()

  how many times have they sent us data we didn't ask for and that we've never seen?

### getUnpromptedDbStoreOld

    public long getUnpromptedDbStoreOld()

  how many times have they sent us data we didn't ask for but that we have seen?

### getFailedLookupRate

    public RateStat getFailedLookupRate()

  how often does the peer fail to reply to a lookup request, broken into 1 hour and 1 day periods.

### getInvalidReplyRate

    public RateStat getInvalidReplyRate()

  not sure how much this is used, to be investigated

### lookupSuccessful

    public void lookupSuccessful()

  Note that the peer was not only able to respond to the lookup, but sent us the data we wanted!

### lookupFailed

    public void lookupFailed()

  Note that the peer failed to respond to the db lookup in any way

### storeSuccessful

    public void storeSuccessful()

  Note that we successfully stored to a floodfill peer and verified the result by asking another floodfill peer

### storeFailed

    public void storeFailed()

  Note that floodfill verify failed

### lookupReply

    public void lookupReply(int newPeers,
                            int oldPeers,
                            int invalid,
                            int duplicate)

  Receive a lookup reply from the peer, where they gave us the specified info

  Parameters:
    `newPeers` - number of peers we have never seen before
    `oldPeers` - number of peers we have seen before
    `invalid` - number of peers that are invalid / out of date / otherwise b0rked
    `duplicate` - number of peers we asked them not to give us (though they're allowed to send us themselves if they don't know anyone else)

### lookupReceived

    public void lookupReceived()

  Note that the peer sent us a lookup

### unpromptedStoreReceived

    public void unpromptedStoreReceived(boolean wasNew)

  Note that the peer sent us a data point without us asking for it

  Parameters:
    `wasNew` - whether we already knew about this data point or not

### setSuccessfulLookups

    public void setSuccessfulLookups(long num)

### setFailedLookups

    public void setFailedLookups(long num)

### setLookupReplyNew

    public void setLookupReplyNew(long num)

### setLookupReplyOld

    public void setLookupReplyOld(long num)

### setLookupReplyInvalid

    public void setLookupReplyInvalid(long num)

### setLookupReplyDuplicate

    public void setLookupReplyDuplicate(long num)

### setLookupsReceived

    public void setLookupsReceived(long num)

### setAvgDelayBetweenLookupsReceived

    public void setAvgDelayBetweenLookupsReceived(long ms)

### setLastLookupReceived

    public void setLastLookupReceived(long when)

### setUnpromptedDbStoreNew

    public void setUnpromptedDbStoreNew(long num)

### setUnpromptedDbStoreOld

    public void setUnpromptedDbStoreOld(long num)

### coalesceStats

    public void coalesceStats()

### store

    public void store(OutputStream out)
               throws IOException

  Throws:
    `IOException`

### load

    public void load(Properties props)

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