1aea01fe5b
fix for Table in case that requested file does not exist and paths also
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do not exist
11 years ago
da86f150ab
- added a new Crawler Balancer: HostBalancer and HostQueues:
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This organizes all urls to be loaded in separate queues for each host.
Each host separates the crawl depth into it's own queue. The primary
rule for urls taken from any queue is, that the crawl depth is minimal.
This produces a crawl depth which is identical to the clickdepth.
Furthermorem the crawl is able to create a much better balancing over
all hosts which is fair to all hosts that are in the queue.
This process will create a very large number of files for wide crawls in
the QUEUES folder: for each host a directory, for each crawl depth a
file inside the directory. A crawl with maxdepth = 4 will be able to
create 10.000s of files. To be able to use that many file readers, it
was necessary to implement a new index data structure which opens the
file only if an access is wanted (OnDemandOpenFileIndex). The usage of
such on-demand file reader shall prevent that the number of file
pointers is over the system limit, which is usually about 10.000 open
files. Some parts of YaCy had to be adopted to handle the crawl depth
number correctly. The logging and the IndexCreateQueues servlet had to
be adopted to show the crawl queues differently, because the host name
is attached to the port on the host to differentiate between http,
https, and ftp services.
11 years ago
56710ecb26
prevent opening of new files as that could be a cause for the latest
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too-many-open-files exception. The old file is just truncated if the
table is cleaned.
11 years ago
8b44fcf0f4
added missing @Override annotation
11 years ago
fdaeac374a
- enhanced postprocessing speed and memory footprint (by using HashMaps
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instead of TreeMaps)
- enhanced memory footprint of database indexes (by introduction of
optimize calls)
- optimize calls shrink the amount of used memory for index sets if they
are not changed afterwards any more
11 years ago
5e31bad711
- the webgraph shall store all links which appear on a web page and not
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all unique links! This made it necessary, that a large portion of the
parser and link processing classes must be adopted to carry a different
type of link collection which carry a property attribute which are
attached to web anchors.
- introduction of a new URL class, AnchorURL
- the other url classes, DigestURI and MultiProtocolURI had been renamed
and refactored to fit into a new document package schema, document.id
- cleanup of net.yacy.cora.document package and refactoring
12 years ago
841a28ae76
Added 'final' for all exception blocks as this helps the Java compiler
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to optimize memory usage
Conflicts:
source/net/yacy/search/Switchboard.java
12 years ago
5878c1d599
- refactoring of log to ConcurrentLog:
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jdk-based logger tend to block
at java.util.logging.Logger.log(Logger.java:476) in concurrent
environments. This makes logging a main performance issue. To overcome
this problem, this is a add-on to jdk logging to put log entries on a
concurrent message queue and log the messages one by one using a
separate process.
- FTPClient uses the concurrent logging instead of the log4j logger
12 years ago
888a985dc6
set a higher limit for table copy usage
12 years ago
5e182a566f
- added another enumeration method in kelondro data structure to get a
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more random access to data for the balancer
- added random access inside the balancer
12 years ago
276dd6452b
removed warnings
12 years ago
a8167e6e5b
clean-up: removed unused methods in kelondro
13 years ago
8219a445f3
refactoring
13 years ago
563d584420
removed more dependencies in cora from kelondro
13 years ago
e072632a54
no complaints about memory if the database is empty
13 years ago
e5ef840f40
- renamed DoubleSolrConnector to MirrorSolrConnector and added a
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hit/miss/document cache to the MirrorSolrConnector.
- more abstraction to SolrDocument in Connector interface
- bugfixes in Solr field reader
13 years ago
f9c0e6e950
- Implemented and integrated the URIMetadataNode object which is a
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metadata representation from the solr index. This shall replace metadata
from the built-in database in the future.
- added the Solr-driven metadata into the search index of YaCy which
makes it now possible to run YaCy without the old metadata index. This
is a major stept forward to a full migration to Solr.
13 years ago
1687737771
Abstraction of HandleMap and HandleSet
13 years ago
0cbda0b2b8
- replaced all length() == 0 and size() == 0 with isEmpty()
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- replaced some length() > 0 and size() > 0 with !isEmpty() - cannot be
done automatically
- implemented some isEmpty() methods
13 years ago
132afaf687
removed unaccessible code
13 years ago
0301aba1e9
removed unused method parameters
13 years ago
8a82609360
- smaller caches to save memory
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- close cloneable iterators to free memory
13 years ago
0c345d1559
giving threads name so its easier to see whats happening during
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debugging and within a thread dump
13 years ago
2280a7b276
- changed initialization order to prefer allocation of memory for table
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files first
- bugfixes in memory amount calculation
13 years ago
0746308bc2
only the metadata tables shall be able to use the tail cache
13 years ago
7ec9bef0c3
fix for OOM
13 years ago
41c02cb10e
- less restrictions for usage of Table RAM copy
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- new limit to use the table copy (instead of flag): 400MB available. If
less is available, then a copy is never used. If more is available, then
it can be used if there is a remaining space of at least 200MB
- flush caches more often: flush the Digest cache
13 years ago
00f2df1120
a variety of possible memory leak fixes
13 years ago
c15fcde1c8
add-on to latest commit
13 years ago
cf47d94888
performance hack to parse numbers inside of substrings without actually
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generating a substring. This avoids the allocation of a String object
ech time a substring is parsed. Should affect CPU load during RWI
transmission.
13 years ago
fbb946f913
Made a method static (Eclipse suggested it), removed unused import, pk=null check does now output a warning in logfile
13 years ago
a093ccf5eb
Now used synchronization in all close() methods to make sure all objects
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are 'closed' in an ordered way
Conflicts:
source/de/anomic/http/server/ChunkedInputStream.java
source/de/anomic/http/server/ChunkedOutputStream.java
source/de/anomic/http/server/ContentLengthInputStream.java
source/net/yacy/cora/protocol/Domains.java
source/net/yacy/cora/services/federated/solr/SolrShardingConnector.java
source/net/yacy/cora/services/federated/solr/SolrSingleConnector.java
source/net/yacy/document/content/dao/PhpBB3Dao.java
source/net/yacy/document/parser/html/AbstractTransformer.java
source/net/yacy/kelondro/blob/BEncodedHeap.java
source/net/yacy/kelondro/blob/HeapReader.java
source/net/yacy/kelondro/index/RAMIndexCluster.java
source/net/yacy/kelondro/io/ByteCountInputStream.java
source/net/yacy/kelondro/logging/ConsoleOutErrHandler.java
source/net/yacy/kelondro/table/SQLTable.java
13 years ago
0cf3d36eae
more tolerance in case of corrupted file
13 years ago
e3bb73c3d6
serialized some database access methods
13 years ago
49be60a7c8
WorkflowProcess is forced to make small pauses if shortMemoryStatus is
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reached.
13 years ago
fa08ed5ae5
Fixed a lot CHMOD rights (no need for execute flag on *.java/*.html) and introduced local/remote crawl size ratio based check
13 years ago
c04bfaa51b
refactoring
13 years ago
404758698a
less io operations
13 years ago
35a9e8f307
- fixed network graphic
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- debuged evaluation tables
- changed cache settings in template engine
- some speed hacks
- changed int angles for peer positions in network graphic to double angles
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8124 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
5a55397f99
some last-minute performance hacks
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8101 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
e914a30099
fix for npe
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8032 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
e58438c01c
- added a new retry connector for solr (for cases where solr responses are slow)
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- added a new exist property into the metadataRepository which includes solr entries
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8016 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
d8d9735b4f
stability bugfix
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8012 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
1b86d06d1e
fix for http://bugs.yacy.net/view.php?id=62
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8004 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
035ebfbf3b
- performance hacks (should affect the crawl balancer and reduce CPU load during crawl stack re-fill)
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- this may have also (good) performance side effects on other parts of YaCy
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7982 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
0c6d95e57b
- more tolerance against failure of table opening
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- more connections for solrj
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7968 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
2c4a672fe2
bugfixes and performance hacks for tabe index
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7957 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
dad5b586a4
added a concurrent warmin-up of Table data structures. that should speed-up the start-up process but may also cause stronger CPU load at that time.
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7956 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
2c595a6a47
added new methods to count the number of objects in RWIs. lots of refactoring was necessary to introduce new Rating class and to unify naming of methods
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7896 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
1912d0cccc
changed handling of RowSet element retrieval: until today all elements had been copied from the underlying byte[] arrays into a new Entry object that again had a copy of a portion of that byte[] in its own bye[]. There was an option to just refer to the underlying byte[] with a pointer but that was almost never used. This commit now changes an interface to the Row class where it is now necessary to tell if a copy is always required. Fortunately the copy is only needed in very rare cases. That means that this change should cause much less memory allocation; it is expected that this happens especially during search situations.
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7840 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
Michael Peter Christen