search for: databaselockerror

...xapian-tcpsrv --port 9100 --interface 127.0.0.1 --writable ./xapiandb/ and in script.py: import xapian as xa db = xa.remote_open_writable('localhost', 9100) # other stuff # ... script is a long running program, and when i try to run another instance, i get : xapian.DatabaseLockError: REMOTE:Unable to get write lock on /home/hinoglu/xapiandb/ : already locked Please correct me if i'm wrong, writelock is the xapian-tcpsrv's lock, not the clients'. So why am i getting databaselock error? Isn't xapian-tcpsrv capable of handling multiple clients? Thanks Ozgur -...

...xapian-core sources: > > examples/simpleindex tmp.db & > examples/simpleindex tmp.db lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db & [1] 26157 lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db DatabaseLockError: Unable to get write lock on tmp.db: already locked [1]+ Stopped examples/simpleindex tmp.db so it is presumably not anything to do with the FS or the OS. I am hoping that the right Tcl person (whoever that is) may pick something up in an strace. > More recent Xapian vers...

...; examples/simpleindex tmp.db & > > examples/simpleindex tmp.db > > lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db & > [1] 26157 > lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db > DatabaseLockError: Unable to get write lock on tmp.db: already locked > > [1]+ Stopped examples/simpleindex tmp.db > > so it is presumably not anything to do with the FS or the OS. I am > hoping that the right Tcl person (whoever that is) may pick something up > in an strace....

...tmp.db & >>> examples/simpleindex tmp.db >> >> lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db & >> [1] 26157 >> lfs at bruno [ /usr/src/sources-deptj/xapian-core-1.2.18 ]$ examples/simpleindex tmp.db >> DatabaseLockError: Unable to get write lock on tmp.db: already locked >> >> [1]+ Stopped examples/simpleindex tmp.db >> >> so it is presumably not anything to do with the FS or the OS. I am >> hoping that the right Tcl person (whoever that is) may pick something u...

Hi, I have read the concurrency webpage from the Xapian documentation: http://getting-started-with-xapian.readthedocs.io/en/latest/concepts/concurrency.html But it is still not clear to me how to ensure thread-safety when using libxapian (C++ API). Usually when doing multi-threading many threads can read the same variable concurrently without locking provided none of the threads modifies the

I think it is a important bug. When there are mutiple write to a xapian db, it should raise db locked error. But I found the DB is currupted after that. It happened very often in our system. Yes, I know xapian support only one write. But admin mistake may happen. Can this be solved? thanks. -- Pan

...erent part of the manual: https://getting-started-with-xapian.readthedocs.io/en/latest/concepts/indexing/databases.html#concurrent-access > Currently, all the backends only support a single writer existing at a given time; attempting to open another writer on the same database will throw xapian.DatabaseLockError to indicate that it wasn’t possible to acquire a lock. Multiple concurrent readers are supported (in addition to the writer). Note the caution there about the number of versions that can exist in Xapian's MVCC, and how to deal with DatabaseModifiedError. J -- James Aylett, occasional trou...

On Sun, 21 Feb 2016 22:33:22 +0000, Olly Betts <olly at survex.com> wrote: > On Sun, Feb 21, 2016 at 02:15:25PM +0100, Eric J wrote: > > I discovered, while trying to set up Tcl bindings for Notmuch > > (https://notmuchmail.org/), which uses Xapian, that flintlock was not > > being locked (I had lost updates). > > It seems to work for me, testing with this: >

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