Can I use Berkeley DB with a San?
Berkeley DB works great with a SAN (and with any other filesystem type as far as we know), but if you attempt to access any filesystem from multiple machines, you are treating the filesystem as a shared, remote filesystem and this can cause problems for Berkeley DB.
What do I need to know about working remotely at UC Berkeley?
Campus users who work remotely need a way to access UC Berkeley resources that are available only within the campus network. In addition, campus users may require a more secure connection as this service provides protections from eavesdropping by other devices at the user’s location.
Do Berkeley DB databases lock the database?
The Berkeley DB Concurrent Data Store and Berkeley DB Transactional Data Store products do lock the database, but still require that locking be configured. Are Berkeley DB databases portable between architectures with different integer sizes and different byte orders?
What type of data does Berkeley DB use?
Berkeley DB uses the SQLite encoding of values directly, with the exception of a custom encoding for row IDs. That encoding includes length information, so it effectively duplicates the length that Berkeley DB maintains for each key/data pair.
What is IST RD gateway?
The IST RD Gateway is open to the internet and relays authenticated connections to systems running Remote Desktop Protocol (RDP).
What is bsecure VPN?
The bSecure Remote Access VPN (Virtual Private Network) allows CalNet ID–authenticated users to securely access the UC Berkeley network from outside of campus as if they were on campus and encrypts the information sent through the network.
What is Oracle Berkeley DB 12c?
Oracle Berkeley DB 12c provides the foundational storage services for your application, no matter how demanding and unique your requirements may seem to be. Using Berkeley DB you can:
What is Berkeley DB?
Berkeley DB is a family of embedded key-value database libraries providing scalable high-performance data management services to applications . The Berkeley DB products use simple function-call APIs for data access and management.#N#Berkeley DB enables the development of custom data management solutions, without the overhead traditionally associated with such custom projects. Berkeley DB provides a collection of well-proven building-block technologies that can be configured to address any application need from the hand-held device to the data center, from a local storage solution to a world-wide distributed one, from kilobytes to petabytes.
Why is Berkeley DB failing?
The Berkeley DB library outputs a verbose error message whenever it is about to return a general-purpose error, or throw a non-specific exception. Whenever it is not clear why an application call into Berkeley DB is failing, the first step is always to review the verbose error messages, which will almost always explain the problem. See the Run-time error information section of the Berkeley DB Reference Guide for more information. It's also useful to know how Berkeley DB divides up the error name space: Except for the historic dbm, ndbm, and hsearch interfaces, Berkeley DB does not use the global variable errno to return error values. The return values for all Berkeley DB functions are grouped into the following three categories:
Why does Berkeley DB run out of disk space?
Applications which do not enclose update operations in transactions cannot recover from out-of-disk-space errors, and the result of running out of disk space may be database corruption.
How does a dump work in SQLite?
SQLite implements the VACUUM command as a database dump followed by a complete reload from that dump. It is an expensive operation, locking the entire database for the duration of the operation. It is also an all or nothing operation. Either it works, or it fails and you have to try again sometime. When SQLite finishes, the database is frequently smaller in size (file size is smaller) and the btree is better organized (shallower) than before due to in-order key insertion of the data from the dump file. SQLite, when it works and when you can afford locking everyone out of the database, does a good job of VACUUM. Berkeley DB approaches this in a completely different way. For many releases now Berkeley DB's B-Tree implementation has had the ability to compact while other oprations are in-flight. Compacting is a process wherein the B-Tree nodes are examined and, when less than optimal, they are re-organized (reverse split, etc.). The more shallow your B-Tree, the fewer lookups required to find the data at a leaf node. Berkeley DB can compact sections of the tree, or the whole tree at once. For 7x24x365 (five-nines) operation this is critical. The BDB version of compact won't adversly impact ongoing database operations whereas SQLite's approach does. But compaction doesn't address empty sections of the database (segments of the database file where deleted data once lived). Berkeley DB also supports compression of database files by moving data within the file, then truncating the file returning that space to the filesystem. As of release 5.1 of Berkeley DB, the VACUUM command will compact and compress the database file (s). This operation takes more time than the dump/load approach of SQLite because it is doing more work to allow for the database to remain operational. We believe this is the right trade-off, but if you disagree you can always dump/load the database in your code.
What is the header file for Berkeley DB?
Berkeley DB's header file db.h and Microsoft's header file oledb.h both define the symbol DBTYPE. Unfortunately, changing either use of this symbol would break existing code.
Why is Berkeley DB not using raw disk?
Berkeley DB wasn't designed to use raw disk partitions, for a few different reasons: First, using a raw disk partition requires specialized archival, tuning and other database administration tools, because you can't trivially write tools to access the physical database and other files.
What is the ECCN for Berkeley DB?
What is the ECCN (Export Control Classification Number) for Berkeley DB? Berkeley DB does optionally include strong cryptographic support. Export/import and/or use of cryptography software, or even communicating technical details about cryptography software, is illegal in some parts of the world.
What is DB_ENV in C?
When using the C API, the DB and DB_ENV handles each contain an app_private field intended to be used to reference application-specific information. See the db_create and db_env_create documentation for more information.
What is bsecure remote access?
The bSecure Remote Access VPN (Virtual Private Network) service, using the Palo Alto Networks GlobalProtect software, allows CalNet ID–authenticated users to securely access the UC Berkeley network from outside of campus as if they were on campus and encrypts the information sent through the network. There are three tunnels:
What is restricted tunnel?
Restricted Tunnel is a service that is limited to people that access sensitive systems and data. It has increased monitoring, and utilizes many of the advanced security features of the Palo Alto Networks firewalls.
What is bsecure VPN?
The bSecure VPN service is a collaboration between Network Operations and the Information Security Office.
