From fb5e409e6107bb5e8b22323a2469d090f78a387c Mon Sep 17 00:00:00 2001
From: Patrick Godwin <patrick.godwin@ligo.org>
Date: Wed, 4 Apr 2018 08:52:32 -0700
Subject: [PATCH] gstlal_feature_extractor_pipe: fixed bug where jobs were
 created for time stretches in which there was no analyzable time

---
 gstlal-ugly/bin/gstlal_feature_extractor_pipe | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gstlal-ugly/bin/gstlal_feature_extractor_pipe b/gstlal-ugly/bin/gstlal_feature_extractor_pipe
index 933c481af2..2ad8b99e0f 100755
--- a/gstlal-ugly/bin/gstlal_feature_extractor_pipe
+++ b/gstlal-ugly/bin/gstlal_feature_extractor_pipe
@@ -118,6 +118,12 @@ def feature_extractor_node_gen(gstlalFeatureExtractorJob, dag, parent_nodes, seg
 		# parallelize jobs by segments
 		for seg in segsdict[ifo]:
 
+			# only produce jobs where the analysis runtime after applying segments is nonzero
+			if not data_source_info.frame_segments[ifo].intersects_segment(seg):
+				if options.verbose:
+					print "Skipping %s since there is no analyzable data here" % repr(seg)
+				continue
+
 			# set maximum number of jobs reading concurrently from the same frame file to prevent I/O locks
 			if ii / options.concurrency == 0:
 				dep_nodes = parent_nodes
-- 
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