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github.com/dCache/dcache @12.0.1

repository ↗ · DeepWiki ↗ · release 12.0.1 ↗ · + Follow

40,769 symbols 169,814 edges 3,234 files 6,602 documented · 16%

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README

dCache

dCache is a system for storing and retrieving huge amounts of data, distributed among a large number of heterogeneous server nodes, under a single virtual filesystem tree with a variety of standard access methods. Depending on the Persistency Model, dCache provides methods for exchanging data with backend (tertiary) Storage Systems as well as space management, pool attraction, dataset replication, hot spot determination and recovery from disk or node failures. Connected to a tertiary storage system, the cache simulates unlimited direct access storage space. Data exchanges to and from the underlying HSM are performed automatically and invisibly to the user. Beside HEP specific protocols, data in dCache can be accessed via NFSv4.1 (pNFS), FTP as well as through WebDav.

Documentation

The dCache book

User Guide

Getting Started

The file BUILDING.md describes how to compile dCache code and build various packages.

The file also describes how to create the system-test deployment, which provides a quick and easy way to get a working dCache. Running system-test requires no special privileges and all the generated files reside within the code-base.

There are also packages of stable releases at https://www.dcache.org/downloads/.

License

The project is licensed under AGPL v3. Some parts licensed under BSD and LGPL. See the source code for details.

For more info, check the official dCache.ORG web page.

Contributors

dCache is a joint effort between Deutsches Elektronen-Synchrotron DESY, Fermi National Accelerator Laboratory and Nordic DataGrid Facility.

Contributions are welcome! Please check out our CONTRIBUTING guide.

Extension points exported contracts — how you extend this code

LoginCellProvider (Interface)

Service provider interface for LoginCellFactory. [6 implementers]

modules/cells/src/main/java/dmg/cells/services/login/LoginCellProvider.java

CredentialAware (Interface)

Indicates that the class needs an X509 credential to work. [6 implementers]

modules/srm-client/src/main/java/org/dcache/srm/shell/CredentialAware.java

RestoresInfoService (Interface)

Internal API for calling the pool manager for restore requests. [83 implementers]

modules/dcache-frontend/src/main/java/org/dcache/restful/services/restores/RestoresInfoService.java

DataSink (Interface)

Data channel uses this interface to write the incoming data. Implement it to provide your own ways of storing data. It m [40 …

modules/ftp-client/src/main/java/org/dcache/ftp/client/DataSink.java

ProfileFactory (Interface)

A class that implements ProfileFactory describes how to create a Profile. @see Profile [46 implementers]

modules/gplazma2-oidc/src/main/java/org/dcache/gplazma/oidc/ProfileFactory.java

AuthorisationSupplier (Interface)

An AuthorisationSupplier is something that may return a relocatable Authorisation statement. [6 implementers]

modules/gplazma2-scitoken/src/main/java/org/dcache/gplazma/scitoken/AuthorisationSupplier.java

DBDriverProvider (Interface)

SPI interface to Driver provider. Provide must crate an instance of a FsSqlDriver for a supported DB type. @sin [6 implementers]

modules/chimera/src/main/java/org/dcache/chimera/spi/DBDriverProvider.java

CommandScanner (Interface)

Implementations of this interface provide means to analyze an object for supported cell shell commands and create suitab [11 …

modules/common-cli/src/main/java/org/dcache/util/cli/CommandScanner.java

Core symbols most depended-on inside this repo

assertThat

called by 5746

modules/srm-server/src/main/java/org/dcache/gridsite/Utilities.java

add

called by 1611

modules/dcache/src/main/java/diskCacheV111/poolManager/PoolSelectionUnit.java

getMessage

called by 1592

modules/cells/src/main/java/dmg/cells/nucleus/CellShell.java

toString

called by 1466

modules/dcache-vehicles/src/main/java/org/dcache/events/Event.java

called by 1407

modules/common/src/main/java/org/dcache/util/ByteUnits.java

put

called by 1361

modules/dcache/src/main/java/org/dcache/alarms/dao/LogEntryDAO.java

get

called by 1322

modules/dcache/src/main/java/org/dcache/pinmanager/PinDao.java

append

called by 1309

modules/dcache/src/main/java/org/dcache/util/NonReindexableList.java

Shape

Method 35,028

Class 4,327

Function 778

Interface 400

Enum 236

Languages

Java93%

TypeScript7%

Python1%

Ruby1%

Modules by API surface

skel/share/webdav/static/bootstrap/js/bootstrap.bundle.js447 symbols

modules/common/src/test/java/org/dcache/util/ByteUnitTests.java425 symbols

skel/share/webdav/static/bootstrap/js/bootstrap.bundle.min.js388 symbols

skel/share/webdav/static/bootstrap/js/bootstrap.js372 symbols

skel/share/webdav/static/bootstrap/js/bootstrap.esm.js371 symbols

skel/share/webdav/static/bootstrap/js/bootstrap.esm.min.js355 symbols

skel/share/webdav/static/bootstrap/js/bootstrap.min.js348 symbols

modules/dcache-ftp/src/main/java/org/dcache/ftp/door/AbstractFtpDoorV1.java252 symbols

modules/srm-client/src/main/java/gov/fnal/srm/util/Configuration.java214 symbols

modules/srm-client/src/main/java/org/dcache/srm/shell/SrmShell.java191 symbols

modules/dcache/src/test/java/diskCacheV111/poolManager/RequestContainerV5Test.java184 symbols

modules/dcache/src/main/java/org/dcache/pool/nearline/NearlineStorageHandler.java169 symbols

Datastores touched

(mongodb)Database · 1 repos

dcacheDatabase · 1 repos

fooDatabase · 1 repos

For agents

$ claude mcp add dcache \
  -- python -m otcore.mcp_server <graph>

⬇ download graph artifact