When recording a snapshot to a relay without custom URI (ex: net://localhost vs net://localhost/custom), the snapshots end up being stored in ~/lttng-traces/<hostname>/snapshot-XXX instead of being inside the <session-name> folder like on local snapshots. We would expect the path to be: ~/lttng-traces/<hostname>/<session-name>/snapshot-XXX
So there is a discrepancy between the local and remote behaviour. This behaviour has been there since at least v2.6, maybe earlier. Moreover, there is nothing that informs the user about the default snapshot name, so it is not possible to know where a snapshot has been stored. After parsing the URI provided by the user, we now check if a custom name was provided or copy the session name there. This is the same operation performed in _lttng_create_session_ext. Signed-off-by: Julien Desfossez <[email protected]> --- src/lib/lttng-ctl/lttng-ctl.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c index a1e10f2..3db9b89 100644 --- a/src/lib/lttng-ctl/lttng-ctl.c +++ b/src/lib/lttng-ctl/lttng-ctl.c @@ -2485,9 +2485,22 @@ int lttng_create_session_snapshot(const char *name, const char *snapshot_url) lsm.u.uri.size = size; + /* + * If the user does not specify a custom subdir, use the session name. + */ + if (size > 0 && uris[0].dtype != LTTNG_DST_PATH && strlen(uris[0].subdir) == 0) { + ret = snprintf(uris[0].subdir, sizeof(uris[0].subdir), "%s", name); + if (ret < 0) { + PERROR("snprintf uri subdir"); + ret = -LTTNG_ERR_FATAL; + goto error; + } + } + ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, uris, sizeof(struct lttng_uri) * size, NULL); +error: free(uris); return ret; } -- 2.7.4 _______________________________________________ lttng-dev mailing list [email protected] https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
