* [spp] [PATCH] spp-ctl: add updating for no existing sec procs
@ 2019-06-24 10:45 yasufum.o
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From: yasufum.o @ 2019-06-24 10:45 UTC (permalink / raw)
To: spp, ferruh.yigit, yasufum.o
From: Yasufumi Ogawa <yasufum.o@gmail.com>
If secondary process is died, spp-ctl cannot find the event and does
not update list of secondary processes. As the result, spp-ctl returns
an invalid message for inquiring status.
This update is to add a method _update_proc() for updating the list run
before making the result message. In the method, spp-ctl tries to
retrieve status of all processes and remove entries of the list if it
is failed.
Signed-off-by: Yasufumi Ogawa <yasufum.o@gmail.com>
---
src/spp-ctl/spp_ctl.py | 37 +++++++++++++++++++++++++++++--------
1 file changed, 29 insertions(+), 8 deletions(-)
diff --git a/src/spp-ctl/spp_ctl.py b/src/spp-ctl/spp_ctl.py
index ce1a2e2..93b87dd 100644
--- a/src/spp-ctl/spp_ctl.py
+++ b/src/spp-ctl/spp_ctl.py
@@ -118,13 +118,17 @@ class Controller(object):
@staticmethod
def _send_command(conn, command):
- conn.sendall(command.encode())
- data = conn.recv(MSG_SIZE)
- if data and len(data) == MSG_SIZE:
- # could not receive data at once. recieve remining data.
- data += self._continue_recv(conn)
- if data:
- data = data.decode()
+ data = None
+ try:
+ conn.sendall(command.encode())
+ data = conn.recv(MSG_SIZE)
+ if data and len(data) == MSG_SIZE:
+ # could not receive data at once. recieve remining data.
+ data += self._continue_recv(conn)
+ if data:
+ data = data.decode()
+ except Exception as e:
+ LOG.info("Error: {}".format(e))
return data
def _get_proc(self, conn):
@@ -137,9 +141,26 @@ class Controller(object):
if sec_id is not None:
return proc(sec_id, conn)
+ def _update_procs(self):
+ """Remove no existing processes from `self.procs`."""
+ removed_ids = []
+ for idx, proc in self.procs.items():
+ if proc.id != spp_proc.ID_PRIMARY:
+ try:
+ # Check the process can be accessed. If not, go
+ # to except block.
+ proc.get_status()
+ except Exception as e:
+ LOG.error(e)
+ removed_ids.append(idx)
+ for idx in removed_ids:
+ LOG.info("Remove no existing {}:{}.".format(
+ self.procs[idx].type, self.procs[idx].id))
+ del self.procs[idx]
+
def get_processes(self):
procs = []
- LOG.info('get_proesses: {}'.format(self.procs.values()))
+ self._update_procs()
for proc in self.procs.values():
p = {"type": proc.type}
if proc.id != spp_proc.ID_PRIMARY:
--
2.17.1
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