-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi, Petr,
If all the files are on the same file system, then it is possible to use the unix file locking mechanism to prevent multiple writers attempting to write to the same file. Are the files using the same file system? Is the file system posix compliant? John On 8/25/14 11:02 PM, Petr Velan wrote: > Hello John, > > We've encountered an issue when using multiple instances of data > access tool over the same data. When multiple instances try to build > missing indexes for some query on the same data, they crash with > segfault. The index is then in an undefined state and further attempts > to query the data result in a crash as well. > > The solution is to build the indexes first and use the data as read > only for multiple instances. However, in our use case, this is highly > impractical. Is there any support for concurrent queries which create > indexes on the fly in the FastBit library? Or any kind of locking for > this use case? > > Thanks, > Petr > > > _______________________________________________ > FastBit-users mailing list > [email protected] > https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users > -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) Comment: GPGTools - https://gpgtools.org iF4EAREKAAYFAlQHSNIACgkQ4I69U3+CTfy30wD6Ao5k6EAScWK9nk13xp7XsQSq riGk3KlY7D9RjUm41b8A/3fauvGMehk5o3byMXKTRPBSo/okt5PukgsJdkozpm7a =6XN0 -----END PGP SIGNATURE----- _______________________________________________ FastBit-users mailing list [email protected] https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users
