How to fix 'index-pack died of signal 15' error in Git?

Question

At first we thought git shallow will resolve this. However we still see the problem. Its intermittent and occurs for repos without branch and tags too. Errors noticed on Jenkins build during git fetch. Don't see anything obvious in git trace or git debug.

Any ideas on how to resolve this?

22:41:16  stdout: 
22:41:16  stderr: remote: Enumerating objects: 781948, done.        
22:41:16  remote: Counting objects:   0% (1/8931)        
remote: Counting objects:   1% (90/8931)        
remote: Counting objects:   2% (179/8931)        
remote: Counting objects:   3% (268/8931)        
remote: Counting objects:   4% (358/8931)        
remote: Counting objects:   5% (447/8931)        
remote: Counting objects:  96% (8574/8931)        
remote: Counting objects:  97% (8664/8931)        
remote: Counting objects:  98% (8753/8931)        
remote: Counting objects:  99% (8842/8931)        
remote: Counting objects: 100% (8931/8931)        
remote: Counting objects: 100% (8931/8931), done.        
22:41:16  remote: Compressing objects:   0% (1/2514)        
remote: Compressing objects:   1% (26/2514)        
remote: Compressing objects:   2% (51/2514)        
remote: Compressing objects:   3% (76/2514)        
remote: Compressing objects:   4% (101/2514)        
remote: Compressing objects:   5% (126/2514)        
remote: Compressing objects:   6% (151/2514)        
remote: Compressing objects:   7% (176/2514)        
remote: Compressing objects:   8% (202/2514)        
remote: Compressing objects:   9% (227/2514)        
remote: Compressing objects:  10% (252/2514)        
remote: Compressing objects:  11% (277/2514)        
remote: Compressing objects:  12% (302/2514)        
remote: Compressing objects:  13% (327/2514)        
remote: Compressing objects:  14% (352/2514)        
remote: Compressing objects:  15% (378/2514)        
remote: Compressing objects:  71% (1785/2514)        
remote: Compressing objects:  72% (1811/2514)        
remote: Compressing objects:  73% (1836/2514)        
remote: Compressing objects:  74% (1861/2514)        
remote: Compressing objects:  75% (1886/2514)        
remote: Compressing objects:  76% (1911/2514)        
remote: Compressing objects:  77% (1936/2514)        
remote: Compressing objects:  78% (1961/2514)        
remote: Compressing objects:  79% (1987/2514)            
remote: Compressing objects:  97% (2439/2514)        
remote: Compressing objects:  98% (2464/2514)        
remote: Compressing objects:  99% (2489/2514)        
remote: Compressing objects: 100% (2514/2514)        
remote: Compressing objects: 100% (2514/2514), done.        
22:41:16  Receiving objects:   0% (1/781948)   
Receiving objects:   0% (1290/781948), 164.01 KiB | 157.00 KiB/s   
Receiving objects:   0% (2623/781948), 332.01 KiB | 161.00 KiB/s   
Receiving objects:   0% (3914/781948), 420.01 KiB | 161.00 KiB/s   
Receiving objects:  68% (533555/781948), 101.66 MiB | 146.00 KiB/s   
error: index-pack died of signal 15
22:41:16  fatal: index-pack failed
22:41:16    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2734)
22:41:16    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:2111)
22:41:16    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$500(CliGitAPIImpl.java:87)
22:41:16    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:623)
22:41:16    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:852)
22:41:16    at 

Answer 1

Signal 15 is SIGTERM. Something is asking your process to exit gracefully (as opposed to SIGKILL (9), which is more drastic).

You need to figure out where that signal comes from. Maybe you already have a guess based on knowledge of your system, in which case you could confirm by attaching strace to the suspect. Otherwise, https://stackoverflow.com/a/62434615/4811803 may help you find the culprit.